Description of the roughness set GOST 9378 93. General specifications
INTERSTATE STANDARD
GENERAL SPECIFICATIONS
Official edition
INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION
Foreword
1 DESIGNED BY THE RUSSIAN FEDERATION
INTRODUCED by the Technical Secretariat of the Interstate Council for Standardization, Metrology and Certification
2 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 4-93 dated October 21, 1993)
State name
Republic of Azerbaijan Republic of Armenia Republic of Belarus Republic of Kazakhstan Kyrgyz Republic Republic of Moldova Russian Federation Republic of Tajikistan
Turkmenistan Republic of Uzbekistan Ukraine
Name of the national standardization body
I Azgosstandart! Armgosstandart | Bel standard
I State Standard of the Republic of Kazakhstan! Kyrgyzstandart Moldovas standard Gosstandart of Russia Tajik State Center for Standardization, Metrology and Certification
This International Standard is the complete authentic text of ISO 2632-1-85 Comparative roughness test pieces - Part 1: Surfaces obtained by turning, grinding, boring, milling and planing and ISO 2632-2-85 Comparison roughness test pieces - Part 2: Surfaces obtained by electroerosive, shot blasting, sandblasting and polishing" and contains additional requirements that reflect the needs of the country's economy
3 Resolution of the Committee Russian Federation on standardization, metrology and certification dated February 7, 1996 No. 54, the interstate standard GOST 9378-93 (ISO 2632-1-85 and ISO 2632-2-85) was put into effect directly as state standard Russian Federation since January 1, 1997
4 INSTEAD OF GOST 9378-75
© IPK Standards Publishing House, 1996
This standard cannot be fully or partially reproduced, replicated and distributed as an official publication on the territory of the Russian Federation without the permission of the State Standard of Russia.
1 Scope .............................................. 1
3 Definitions ...............................
4 Classification, main parameters and dimensions
5 General technical requirements ...............
6 Sample Control Methods .................................. 7
7 Acceptance Rules.............................. 7
8 Transport and storage.............................. 8
9 Manufacturer's Warranty............................................... 8
GOST 9378-93 (ISO 2632-1-85, ISO 2632-2-85)
INTERSTATE STANDARD
SURFACE ROUGHNESS SAMPLES (COMPARATIONS)
General specifications
Roughness comparison specimens.
GeneraJ specifications
Introduction date 1997-01-01
1 AREA OF USE
This standard applies to surface roughness (comparison) samples intended for visual and tactile comparison with product surfaces obtained by cutting, polishing, electroerosive, shot blasting and sandblasting.
GOST 2.601-95 ESKD. Operating documents
GOST 2789-73 Surface roughness. Parameters and characteristics
GOST 13762-86 Instruments for measuring and controlling linear and angular dimensions. Marking, packaging, transportation and storage
MI 1850-88 GSI Samples of surface roughness (comparison). Verification procedure
Official edition
3 DEFINITIONS
3.1 Surface roughness sample (comparison) - a surface sample with known roughness parameters obtained by a certain processing method.
3.2 Terms and definitions of roughness parameters - according to GOST 2789.
4 CLASSIFICATION, MAIN PARAMETERS AND DIMENSIONS
4.1 The processing methods reproduced by the samples, the shape of the sample and the main direction of the surface irregularities of the sample must correspond to those indicated in table 1.
Table I
Location of irregularities
Description
Conditional
image
rectilinear
arcuate
End of table I
Processing method
sample shape
Conditional
designation
processing
Location of irregularities
Description
Conditional
image
Milling
face
grinding
face
grinding
bowl-shaped
rebaptize
lingering
arched
EDM
Shot blasting,
sandblasting
treatment
Not having a specific stroke direction
Polishing
cylindrical
convex
PP Confused
P C stroke
NOTE The roughness samples should characterize a specific and only reproducible processing method.
4.2 Rows nominal values the roughness parameter Ra of the sample surface, depending on the reproducible processing method, and the base lengths for roughness assessment should correspond to those indicated in table 2.
Note - At the request of the customer, the surface of the sample can be additionally evaluated by the roughness parameters R z, ft gros, Sm, Z 1, t Pr, the values of which are not standardized and are given as a reference according to the measurement results.
table 2
|
Processing method |
Base length /, mm |
|
|
grinding | ||
|
Turning and boring | ||
|
Milling | ||
|
Planing | ||
|
EDM | ||
|
treatment | ||
|
Shot blasting and | ||
|
sandblasting | ||
End of table 2
Processing method
Roughness parameter Ra, µm
Base length /, mm
Polishing
Notes
1 The average step of the surface irregularities of the sample should not exceed 1/3 of the base length.
2 The range of Ra parameter values given in the table is preferred. It is allowed to manufacture samples with other values of the Ra parameter in accordance with GOST 2789 with a gradation of at least 2.
3 Small values of the Ra parameter (up to 0.1 µm) are given mainly not for comparison with the surfaces of controlled parts, but in order to give the user an idea of the differences between these values (for example, 0.006; 0.0125; 0.025; 0 .05 and 0.1 µm) that can be visually marked.
4.3 The width of the reference specimens must be at least 20 mm. The length of the samples must be at least:
20 mm with Ra from 0.025 to 12.5 µm and base length up to 2.5 mm;
30 mm at Ra from 6.3 to 12.5 µm and base length 8 mm;
50 mm at Ra equal to 25 µm.
The radius of curvature of cylindrical samples should be within 20-40 mm.
4.4 Sample preparation methods
Samples can be made:
By applying a processing method that should reproduce the sample;
Galvanoplastic method of making positive prints from matrices;
Production from matrices of positive prints made of plastic or other materials and reproducing the treated surface in appearance and touch.
4.5 Designation of specimens
AT symbol sample (or set of samples) roughness indicate:
Nominal value (or range of values for a set) of the roughness parameter Ra\
Conventional designation of the processing method (according to table 1);
Designation of this standard.
For example: Roughness sample 1.6 ShCh GOST 9378-93 or Set of roughness samples 0.2-0.8 ShTsV GOST 9378-93, where
1.6 and 0.2-0.8 - the values of the roughness parameter Ra \ ShCh - grinding with a cup-shaped wheel; ШЦВ - grinding by the periphery of the circle, the shape of the sample is cylindrical concave.
5 GENERAL SPECIFICATIONS
5.1 Surface roughness samples must be made in accordance with the requirements of this standard according to the design documentation approved in the prescribed manner.
5.2 Roughness samples should have the same color and gloss on the entire working surface. Cracks, nicks, chips, shells, traces of corrosion, porosity and crushing, as well as scratches that do not disappear with a change in the angle of view, visible to the naked eye, are not allowed on the working surface of the sample.
5.3 Permissible deviation of the average value of the parameter Ra from the nominal value and the permissible standard deviation from the average value Ra must correspond to those specified in Table 3.
Table 3
Processing method
grinding
Boring
Milling
Planing
EDM
treatment
Sandblasting and shot blasting
Polishing
Permissible deviation of the average value Ra from the nominal value, %
Permissible standard deviation o, %
Note - The allowable standard deviation is given for the evaluation length containing 5 basic lengths. For a different number n of base lengths in the estimate length, the deviation is<з л определяют по формуле
5.4 The main direction of the irregularities (see Table 1) should be parallel to the shorter side of the specimen.
5.5 Samples must be demagnetized.
5.6 Completeness of samples
Roughness samples are completed in sets. Each set of samples is accompanied by a passport in accordance with GOST 2.601, containing a list of samples included in the set, reproducible processing methods and roughness parameter values, including additional ones at the request of the customer (see note to 4.2).
Note - It is allowed to supply individual roughness samples outside the set
5.7 Marking
On the case or frame in which the roughness samples are packed, the following should be applied:
1) on the case:
The words "roughness samples";
Method (or methods) of processing;
Name and / or trademark of the manufacturer;
Set serial number;
The designation of this standard;
2) on the frame (or a separate sample):
Nominal value of the roughness parameter Ra (for each sample separately);
The material (materials) of the parts for which the samples are intended to be controlled;
processing method.
5.8 Packaging of roughness samples - according to GOST 13762.
6 SAMPLE CONTROL METHODS
Checking roughness samples - according to MI 1850.
7 ACCEPTANCE RULES
7.1 To check the conformity of surface roughness samples with the requirements of this standard, acceptance control and periodic tests are carried out.
7.2 During acceptance control, each roughness sample must be checked for compliance with the requirements of 5.2 and 5.5; for compliance with the requirements of 5.3 check randomly. Sample size
determined according to the normative and technical documentation approved in the prescribed manner.
7.3 Upon acceptance, the samples are subjected to the following tests:
7.3.1 When checking the effect of transport shaking, a shock stand is used that creates shaking with an acceleration of 30 m/s at a frequency of 80-120 beats per minute.
The samples in the package are attached to the stand and tested with a total number of impacts of 15,000. It is allowed to test the samples by transporting them on a truck at a speed of 20 to 40 km/h, for a distance of 100 km along a dirt road.
After testing, the specimens shall conform in appearance to 5.2.
7.3.2 The impact of climatic environmental factors is checked in climatic chambers. Samples in a package are tested in the following mode: first at a temperature of minus (50+3)°C, and then plus (50+3)°C, and then at a relative humidity of (95±3)% at a temperature of 35°C. Exposure in a climatic chamber for each type of test is at least 2 hours. After testing, the samples in appearance must comply with 5.2.
7.4 Periodic tests for compliance with all the requirements of this standard are carried out at least once every three years, and for samples made by the electroforming method, at least once every five years.
If during testing it is found that the product complies with all the requirements of this standard, the results of periodic tests are considered satisfactory.
8 TRANSPORT AND STORAGE
Transportation and storage - according to GOST 13762.
9 MANUFACTURER WARRANTY
9.1 The manufacturer guarantees that the surface roughness samples (comparison) meet the requirements of this standard, subject to the conditions of operation, transportation and storage.
9.2 Warranty period - 24 months from the date of putting the samples into operation.
UDC 531.717.8:006.354 OKS 03.120.20 P52 OKSTU OOP
Keywords: surface roughness, roughness control, roughness samples (comparisons), specifications
Editor V.L. Ogurtsov Technical editor L.A. Kuznetsova Proofreader V.I. Barentseva Computer proofing V.I. Grishchenko
Ed. persons. JNfe 021007 dated 08/10/95. Handed over to the set 04/23/96. Signed for publication on 09.07.96.
Uel. oven l. 0.70.
From 3582. Law. 314.
Uch.-ed. l. 0.65. Circulation 636 copies. ___ ____
IPK Standards Publishing House 107076, Moscow, Kolodezny per., 14.
Typed at the Publishing House on a PC
Branch of IPK Publishing house of standards - type. "Moscow printer"
Moscow, Lyalin per., 6
GOST 9378-93
(ISO 2632-1-85,
ISO 2632-2-85)
INTERSTATE STANDARD
ROUGHNESS SAMPLES
SURFACES (COMPARATIONS)
GENERAL SPECIFICATIONS
INTERSTATE COUNCIL
ON STANDARDIZATION, METROLOGY AND CERTIFICATION
Minsk
Foreword
1 DESIGNED BY THE RUSSIAN FEDERATION
INTRODUCED by the Technical Secretariat of the Interstate Council for Standardization, Metrology and Certification
2 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 4-93 dated October 21, 1993)
|
State name |
Name of the national standardization body |
|
Republic of Azerbaijan |
Azgosstandart |
|
Republic of Armenia |
Armstate standard |
|
Republic of Belarus |
Belstandard |
|
The Republic of Kazakhstan |
State Standard of the Republic of Kazakhstan |
|
Kyrgyz Republic |
Kyrgyzstandart |
|
The Republic of Moldova |
Moldovastandard |
|
the Russian Federation |
Gosstandart of Russia |
|
The Republic of Tajikistan |
Tajik State Center for Standardization, Metrology and Certification |
|
Turkmenistan |
Turkmenglavstate inspection |
|
The Republic of Uzbekistan |
Uzgosstandart |
|
Ukraine |
State Standard of Ukraine |
This International Standard is the complete authentic text of ISO 2632-1-85 Comparative roughness test pieces - Part 1: Surfaces obtained by turning, grinding, boring, milling and planing and ISO 2632-2-85 Comparison roughness test pieces - Part 2: Surfaces obtained by electroerosive, shot blasting, sandblasting and polishing" and contains additional requirements that reflect the needs of the country's economy
3 By the Decree of the Committee of the Russian Federation for Standardization, Metrology and Certification dated February 7, 1996 No. 54, the interstate standard GOST 9378-93 (ISO 2632-1-85 and ISO 2632-2-85) was put into effect directly as the state standard of the Russian Federation since January 1, 1997
4 INSTEAD OF GOST 9378-75
GOST 9378-93
(ISO 2632-1-85,
ISO 2632-2-85)
INTERSTATE STANDARD
SURFACE ROUGHNESS SAMPLES (COMPARATIONS)
Generaltechnicalconditions
Roughness comparison specimens.
General specifications
Introduction date 1997-01-01
1 AREA OF USE
This standard applies to surface roughness (comparison) samples intended for visual and tactile comparison with product surfaces obtained by cutting, polishing, electroerosive, shot blasting and sandblasting.
2 REGULATORY REFERENCES
This standard uses references to the following standards:
4 CLASSIFICATION, MAIN PARAMETERS AND DIMENSIONS
4.1 The processing methods reproduced by the samples, the shape of the sample and the main direction of the surface irregularities of the sample must comply with those specified in.
Table 1
|
sample shape |
Conventional designation of the processing method |
Location of irregularities |
||
|
Description |
Conditional image |
|||
|
Turning |
Cylindrical convex |
rectilinear |
||
|
Boring |
Cylindrical concave |
|||
|
Milling cylindrical |
flat |
FC |
||
|
Planing |
flat |
|||
|
Grinding the periphery of the circle |
flat, |
ShP |
||
|
cylindrical convex, |
SC |
|||
|
cylindrical concave |
ShCV |
|||
|
Face turning |
flat |
TT |
arcuate |
|
|
Face milling |
flat |
FT |
||
|
Face milling |
flat |
FTP |
Crossed arcuate |
|
|
face grinding |
flat |
PCS |
||
|
Cup grinding |
flat |
SHCH |
||
|
EDM |
flat |
Not having a specific stroke direction |
||
|
Shot blasting, sandblasting |
flat |
DC PS |
||
|
Polishing |
Flat, cylindrical convex |
PP HRC |
Confused stroke |
|
Note - Roughness samples should characterize the features of only a reproducible processing method.
Roughness parameter Ra, µm
base length l, mm
grinding
0,050
0,25
0,100
0,25
0,200
0,25
0,400
0,80
0,800
0,80
1,600
0,80
3,200
2,50
Turning and boring
12,5
Milling
12,5
Planing
12,5
25,0
EDM
12,5
Shot blasting and sandblasting
12,5
25,0
Polishing
0,006
0,08
0,0125
0,08
0,025
0,08
0,050
0,25
0,100
0.25
0,200
0,80
Notes
1 The average step of the surface irregularities of the sample should not exceed 1/3 of the base length.
2 The range of parameter values given in the table Ra - preferred. It is allowed to manufacture samples with other values of the Ra parameter in accordance with GOST 2789 with a gradation of at least 2.
3 Small values of the Ra parameter (up to 0.1 µm) are given mainly not for comparison with the surfaces of controlled parts, but in order to give the user an idea of the differences between these values (for example, 0.006; 0.0125; 0.025; 0 .05 and 0.1 µm) that can be visually marked.
4.3 The width of the reference specimens must be at least 20 mm. The length of the samples must be at least:
20 mm with Ra from 0.025 to 12.5 µm and base length up to 2.5 mm;
30 mm at Ra from 6.3 to 12.5 µm and base length 8 mm;
50 mm at Ra equal to 25 µm.
The radius of curvature of cylindrical samples should be within 20-40 mm.
4.4 Sample preparation methods Samples may be produced:
By applying a processing method that should reproduce the sample;
Galvanoplastic method of making positive prints from matrices;
Production from matrices of positive prints made of plastic or other materials and reproducing the treated surface in appearance and touch.
4.5 Designation of specimens
In the symbol of a sample (or a set of samples), the roughness is indicated by:
Nominal value (or range of values for a set) of the roughness parameter Ra;
Conventional designation of the processing method (according to);
Designation of this standard.
For example: Roughness sample 1.6 ShCh GOST 9378-93 or A set of roughness samples 0.2-0.8 ShTsV GOST 9378-93, where 1.6 and 0.2-0.8 are the values of the roughness parameter Ra; ShCh - grinding with a bowl-shaped circle; ШЦВ - grinding by the periphery of the circle, the shape of the sample is cylindrical concave.
5 GENERAL SPECIFICATIONS
5.1 Surface roughness samples must be made in accordance with the requirements of this standard according to the design documentation approved in the prescribed manner.
Permissible deviation of the average value Ra from the nominal value, %
Permissible standard deviations,
grinding
Turning
Boring
Milling
Planing
EDM
Sandblasting and shot blasting
Polishing
Note - The allowable standard deviation is given for the evaluation length containing 5 basic lengths. For other quantity n base lengths in length estimation deviations n determined by the formula
5.4 The main direction of the irregularities (see ) should be parallel to the shorter side of the specimen.
5.6 Completeness of samples
Roughness samples are completed in sets. Each set of samples is accompanied by a passport according to GOST 2.601 containing a list of samples included in the set, reproducible processing methods and roughness parameter values, including additional ones at the request of the customer (see note to).
Note - It is allowed to supply individual roughness samples outside the set.
5.7 Marking
On the case or frame in which the roughness samples are packed, the following should be applied:
1) on the case:
The words "roughness samples";
Method (or methods) of processing;
Name and / or trademark of the manufacturer;
Set serial number;
The designation of this standard;
2) on the frame (or a separate sample):
Rated value of the roughness parameter Ra (for each sample separately);
The material (materials) of the parts for which the samples are intended to be controlled;
processing method.
5.8 Packaging of roughness samples - according to GOST 13762.
6 SAMPLE CONTROL METHODS
Checking roughness samples - according to MI 1850.
7 ACCEPTANCE RULES
7.1 To check the conformity of surface roughness samples with the requirements of this standard, acceptance control and periodic tests are carried out.
7.2 During acceptance control, each roughness sample must be checked for compliance with the requirements and; for compliance with the requirements are checked randomly. The sample size is determined according to the normative and technical documentation approved in the prescribed manner.
7.3 Upon acceptance, the samples are subjected to the following tests:
7.3.1 When checking the effect of transport shaking, a shock stand is used that creates shaking with an acceleration of 30 m/s at a frequency of 80-120 beats per minute.
The samples in the package are attached to the stand and tested with a total number of impacts of 15,000. It is allowed to test the samples by transporting them on a truck at a speed of 20 to 40 km/h, for a distance of 100 km along a dirt road.
After testing, the samples in appearance must conform.
7.3.2 The impact of climatic environmental factors is checked in climatic chambers. Tests of samples in the package are carried out in the following mode: first at a temperature of minus (50 + 3)° C, and then plus (50 ± 3) ° C and further at a relative humidity of (95 ± 3)% at a temperature of 35 ° C. Exposure in a climatic chamber for each type of test is at least 2 hours. After testing, the samples must correspond in appearance to .
7.4 Periodic tests for compliance with all the requirements of this standard are carried out at least once every three years, and for samples made by the electroforming method, at least once every five years.
If during testing it is found that the product complies with all the requirements of this standard, the results of periodic tests are considered satisfactory.
8 TRANSPORT AND STORAGE
Transportation and storage - according to GOST 13762.
9 MANUFACTURER WARRANTY
9.1 The manufacturer guarantees that the surface roughness samples (comparison) meet the requirements of this standard, subject to the conditions of operation, transportation and storage.
9.2 Warranty period - 24 months from the date of putting the samples into operation.
Keywords: surface roughness, roughness control, roughness samples (comparisons), specifications
GOST 9378-93
(ISO 2632-1-85,
ISO 2632-2-85)
INTERSTATE STANDARD
ROUGHNESS SAMPLES
SURFACES (COMPARATIONS)
GENERAL SPECIFICATIONS
INTERSTATE COUNCIL
ON STANDARDIZATION, METROLOGY AND CERTIFICATION
Minsk
Foreword
1 DESIGNED BY THE RUSSIAN FEDERATION
INTRODUCED by the Technical Secretariat of the Interstate Council for Standardization, Metrology and Certification
2 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 4-93 dated October 21, 1993)
|
State name |
Name of the national standardization body |
|
Republic of Azerbaijan |
Azgosstandart |
|
Republic of Armenia |
Armstate standard |
|
Republic of Belarus |
Belstandard |
|
The Republic of Kazakhstan |
State Standard of the Republic of Kazakhstan |
|
Kyrgyz Republic |
Kyrgyzstandart |
|
The Republic of Moldova |
Moldovastandard |
|
the Russian Federation |
Gosstandart of Russia |
|
The Republic of Tajikistan |
Tajik State Center for Standardization, Metrology and Certification |
|
Turkmenistan |
Turkmenglavstate inspection |
|
The Republic of Uzbekistan |
Uzgosstandart |
|
Ukraine |
State Standard of Ukraine |
This International Standard is the complete authentic text of ISO 2632-1-85 Comparative roughness test pieces - Part 1: Surfaces obtained by turning, grinding, boring, milling and planing and ISO 2632-2-85 Comparison roughness test pieces - Part 2: Surfaces obtained by electroerosive, shot blasting, sandblasting and polishing" and contains additional requirements that reflect the needs of the country's economy
3 By the Decree of the Committee of the Russian Federation for Standardization, Metrology and Certification dated February 7, 1996 No. 54, the interstate standard GOST 9378-93 (ISO 2632-1-85 and ISO 2632-2-85) was put into effect directly as the state standard of the Russian Federation since January 1, 1997
4 INSTEAD OF GOST 9378-75
GOST 9378-93
(ISO 2632-1-85,
ISO 2632-2-85)
INTERSTATE STANDARD
SURFACE ROUGHNESS SAMPLES (COMPARATIONS)
Generaltechnicalconditions
Roughness comparison specimens.
General specifications
Introduction date 1997-01-01
1 AREA OF USE
This standard applies to surface roughness (comparison) samples intended for visual and tactile comparison with product surfaces obtained by cutting, polishing, electroerosive, shot blasting and sandblasting.
2 REGULATORY REFERENCES
This standard uses references to the following standards:
4 CLASSIFICATION, MAIN PARAMETERS AND DIMENSIONS
4.1 The processing methods reproduced by the samples, the shape of the sample and the main direction of the surface irregularities of the sample must comply with those specified in.
Table 1
|
sample shape |
Conventional designation of the processing method |
Location of irregularities |
||
|
Description |
Conditional image |
|||
|
Turning |
Cylindrical convex |
rectilinear |
||
|
Boring |
Cylindrical concave |
|||
|
Milling cylindrical |
flat |
FC |
||
|
Planing |
flat |
|||
|
Grinding the periphery of the circle |
flat, |
ShP |
||
|
cylindrical convex, |
SC |
|||
|
cylindrical concave |
ShCV |
|||
|
Face turning |
flat |
TT |
arcuate |
|
|
Face milling |
flat |
FT |
||
|
Face milling |
flat |
FTP |
Crossed arcuate |
|
|
face grinding |
flat |
PCS |
||
|
Cup grinding |
flat |
SHCH |
||
|
EDM |
flat |
Not having a specific stroke direction |
||
|
Shot blasting, sandblasting |
flat |
DC PS |
||
|
Polishing |
Flat, cylindrical convex |
PP HRC |
Confused stroke |
|
Note - Roughness samples should characterize the features of only a reproducible processing method.
Roughness parameter Ra, µm
base length l, mm
grinding
0,050
0,25
0,100
0,25
0,200
0,25
0,400
0,80
0,800
0,80
1,600
0,80
3,200
2,50
Turning and boring
12,5
Milling
12,5
Planing
12,5
25,0
EDM
12,5
Shot blasting and sandblasting
12,5
25,0
Polishing
0,006
0,08
0,0125
0,08
0,025
0,08
0,050
0,25
0,100
0.25
0,200
0,80
Notes
1 The average step of the surface irregularities of the sample should not exceed 1/3 of the base length.
2 The range of parameter values given in the table Ra - preferred. It is allowed to manufacture samples with other values of the Ra parameter in accordance with GOST 2789 with a gradation of at least 2.
3 Small values of the Ra parameter (up to 0.1 µm) are given mainly not for comparison with the surfaces of controlled parts, but in order to give the user an idea of the differences between these values (for example, 0.006; 0.0125; 0.025; 0 .05 and 0.1 µm) that can be visually marked.
4.3 The width of the reference specimens must be at least 20 mm. The length of the samples must be at least:
20 mm with Ra from 0.025 to 12.5 µm and base length up to 2.5 mm;
30 mm at Ra from 6.3 to 12.5 µm and base length 8 mm;
50 mm at Ra equal to 25 µm.
The radius of curvature of cylindrical samples should be within 20-40 mm.
4.4 Sample preparation methods Samples may be produced:
By applying a processing method that should reproduce the sample;
Galvanoplastic method of making positive prints from matrices;
Production from matrices of positive prints made of plastic or other materials and reproducing the treated surface in appearance and touch.
4.5 Designation of specimens
In the symbol of a sample (or a set of samples), the roughness is indicated by:
Nominal value (or range of values for a set) of the roughness parameter Ra;
Conventional designation of the processing method (according to);
Designation of this standard.
For example: Roughness sample 1.6 ShCh GOST 9378-93 or A set of roughness samples 0.2-0.8 ShTsV GOST 9378-93, where 1.6 and 0.2-0.8 are the values of the roughness parameter Ra; ShCh - grinding with a bowl-shaped circle; ШЦВ - grinding by the periphery of the circle, the shape of the sample is cylindrical concave.
5 GENERAL SPECIFICATIONS
5.1 Surface roughness samples must be made in accordance with the requirements of this standard according to the design documentation approved in the prescribed manner.
Permissible deviation of the average value Ra from the nominal value, %
Permissible standard deviations,
grinding
Turning
Boring
Milling
Planing
EDM
Sandblasting and shot blasting
Polishing
Note - The allowable standard deviation is given for the evaluation length containing 5 basic lengths. For other quantity n base lengths in length estimation deviations n determined by the formula
5.4 The main direction of the irregularities (see ) should be parallel to the shorter side of the specimen.
5.6 Completeness of samples
Roughness samples are completed in sets. Each set of samples is accompanied by a passport according to GOST 2.601 containing a list of samples included in the set, reproducible processing methods and roughness parameter values, including additional ones at the request of the customer (see note to).
Note - It is allowed to supply individual roughness samples outside the set.
5.7 Marking
On the case or frame in which the roughness samples are packed, the following should be applied:
1) on the case:
The words "roughness samples";
Method (or methods) of processing;
Name and / or trademark of the manufacturer;
Set serial number;
The designation of this standard;
2) on the frame (or a separate sample):
Rated value of the roughness parameter Ra (for each sample separately);
The material (materials) of the parts for which the samples are intended to be controlled;
processing method.
5.8 Packaging of roughness samples - according to GOST 13762.
6 SAMPLE CONTROL METHODS
Checking roughness samples - according to MI 1850.
7 ACCEPTANCE RULES
7.1 To check the conformity of surface roughness samples with the requirements of this standard, acceptance control and periodic tests are carried out.
7.2 During acceptance control, each roughness sample must be checked for compliance with the requirements and; for compliance with the requirements are checked randomly. The sample size is determined according to the normative and technical documentation approved in the prescribed manner.
7.3 Upon acceptance, the samples are subjected to the following tests:
7.3.1 When checking the effect of transport shaking, a shock stand is used that creates shaking with an acceleration of 30 m/s at a frequency of 80-120 beats per minute.
The samples in the package are attached to the stand and tested with a total number of impacts of 15,000. It is allowed to test the samples by transporting them on a truck at a speed of 20 to 40 km/h, for a distance of 100 km along a dirt road.
After testing, the samples in appearance must conform.
7.3.2 The impact of climatic environmental factors is checked in climatic chambers. Tests of samples in the package are carried out in the following mode: first at a temperature of minus (50 + 3)° C, and then plus (50 ± 3) ° C and further at a relative humidity of (95 ± 3)% at a temperature of 35 ° C. Exposure in a climatic chamber for each type of test is at least 2 hours. After testing, the samples must correspond in appearance to .
7.4 Periodic tests for compliance with all the requirements of this standard are carried out at least once every three years, and for samples made by the electroforming method, at least once every five years.
If during testing it is found that the product complies with all the requirements of this standard, the results of periodic tests are considered satisfactory.
8 TRANSPORT AND STORAGE
Transportation and storage - according to GOST 13762.
9 MANUFACTURER WARRANTY
9.1 The manufacturer guarantees that the surface roughness samples (comparison) meet the requirements of this standard, subject to the conditions of operation, transportation and storage.
9.2 Warranty period - 24 months from the date of putting the samples into operation.
Keywords: surface roughness, roughness control, roughness samples (comparisons), specifications
(ISO 2632-1-85,
ISO 2632-2-85)
INTERSTATE STANDARD
ROUGHNESS SAMPLES
SURFACES (COMPARATIONS)
GENERAL SPECIFICATIONS
INTERSTATE COUNCIL
ON STANDARDIZATION, METROLOGY AND CERTIFICATION
Minsk
Foreword
1 DESIGNED BY THE RUSSIAN FEDERATION
INTRODUCED by the Technical Secretariat of the Interstate Council for Standardization, Metrology and Certification
2 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 4-93 dated October 21, 1993)
|
State name |
Name of the national standardization body |
|
Republic of Azerbaijan |
Azgosstandart |
|
Republic of Armenia |
Armstate standard |
|
Republic of Belarus |
Belstandard |
|
The Republic of Kazakhstan |
State Standard of the Republic of Kazakhstan |
|
Kyrgyz Republic |
Kyrgyzstandart |
|
The Republic of Moldova |
Moldovastandard |
|
the Russian Federation |
Gosstandart of Russia |
|
The Republic of Tajikistan |
Tajik State Center for Standardization, Metrology and Certification |
|
Turkmenistan |
Turkmenglavstate inspection |
|
The Republic of Uzbekistan |
Uzgosstandart |
|
State Standard of Ukraine |
This International Standard is the complete authentic text of ISO 2632-1-85 Comparative roughness test pieces - Part 1: Surfaces obtained by turning, grinding, boring, milling and planing and ISO 2632-2-85 Comparison roughness test pieces - Part 2: Surfaces obtained by electroerosive, shot blasting, sandblasting and polishing" and contains additional requirements that reflect the needs of the country's economy
3 By the Decree of the Committee of the Russian Federation for Standardization, Metrology and Certification dated February 7, 1996 No. 54, the interstate standard GOST 9378-93 (ISO 2632-1-85 and ISO 2632-2-85) was put into effect directly as the state standard of the Russian Federation since January 1, 1997
(ISO 2632-1-85,
ISO 2632-2-85)
INTERSTATE STANDARD
SURFACE ROUGHNESS SAMPLES (COMPARATIONS)
General specifications
Roughness comparison specimens.
General specifications
Introduction date 1997-01-01
1 AREA OF USE
This standard applies to surface roughness (comparison) samples intended for visual and tactile comparison with product surfaces obtained by cutting, polishing, electroerosive, shot blasting and sandblasting.
2 REGULATORY REFERENCES
4 CLASSIFICATION, MAIN PARAMETERS AND DIMENSIONS
4.1 The processing methods reproduced by the samples, the shape of the sample and the main direction of the surface irregularities of the sample must correspond to those indicated in table 1.
Table 1
|
Processing method |
sample shape |
Conventional designation of the processing method |
Location of irregularities |
|
|
Description |
Conditional image |
|||
|
Cylindrical convex |
rectilinear |
|||
|
Boring |
Cylindrical concave |
|||
|
Milling cylindrical |
||||
|
Planing |
||||
|
Grinding the periphery of the circle |
||||
|
cylindrical convex, |
||||
|
cylindrical concave |
||||
|
Face turning |
arcuate |
|||
|
Face milling |
||||
|
Face milling |
Crossed arcuate |
|||
|
face grinding |
||||
|
Cup grinding |
||||
|
EDM |
Not having a specific stroke direction |
|||
|
Shot blasting, sandblasting |
||||
|
Polishing |
Flat, cylindrical convex |
Confused stroke |
||
Note - Roughness samples should characterize the features of only a reproducible processing method.
4.2 The series of nominal values of the roughness parameter Ra of the sample surface, depending on the reproducible processing method, and the base lengths for roughness assessment should correspond to those indicated in table 2.
Note - At the request of the customer, the surface of the sample can be additionally evaluated by the roughness parameters R Z , R max , S m , S, t P , the values of which are not standardized and are given as a reference according to the measurement results
table 2
|
Processing method |
Roughness parameter Ra, µm |
base length l, mm |
|
grinding |
||
|
Turning and boring |
||
|
Milling |
||
|
Planing |
||
|
EDM |
||
|
Shot blasting and sandblasting |
||
|
Polishing |
||
Notes
1 The average step of the surface irregularities of the sample should not exceed 1/3 of the base length.
2 The range of Ra parameter values given in the table is preferred. It is allowed to manufacture samples with other values of the Ra parameter in accordance with GOST 2789 with a gradation of at least 2.
3 Small values of the Ra parameter (up to 0.1 µm) are given mainly not for comparison with the surfaces of controlled parts, but in order to give the user an idea of the differences between these values (for example, 0.006; 0.0125; 0.025; 0 .05 and 0.1 µm) that can be visually marked.
4.3 The width of the reference specimens must be at least 20 mm. The length of the samples must be at least:
20 mm with Ra from 0.025 to 12.5 µm and base length up to 2.5 mm;
30 mm at Ra from 6.3 to 12.5 µm and base length 8 mm;
50 mm at Ra equal to 25 µm.
The radius of curvature of cylindrical samples should be within 20-40 mm.
4.4 Sample preparation methods Samples may be produced:
By applying a processing method that should reproduce the sample;
Galvanoplastic method of making positive prints from matrices;
Production from matrices of positive prints made of plastic or other materials and reproducing the treated surface in appearance and touch.
4.5 Designation of specimens
In the symbol of a sample (or a set of samples), the roughness is indicated by:
Nominal value (or range of values for a set) of the roughness parameter Ra;
Conventional designation of the processing method (according to table 1);
Designation of this standard.
For example: Roughness sample 1.6 ShCh GOST 9378-93 or A set of roughness samples 0.2-0.8 ShTsV GOST 9378-93, where 1.6 and 0.2-0.8 are the values of the roughness parameter Ra; ShCh - grinding with a bowl-shaped circle; ШЦВ - grinding by the periphery of the circle, the shape of the sample is cylindrical concave.
5 GENERAL SPECIFICATIONS
5.1 Surface roughness samples must be made in accordance with the requirements of this standard according to the design documentation approved in the prescribed manner.
5.2 Roughness samples should have the same color and gloss on the entire working surface. Cracks, nicks, chips, shells, traces of corrosion, porosity and crushing, as well as scratches that do not disappear with a change in the angle of view, visible to the naked eye, are not allowed on the working surface of the sample.
5.3 Permissible deviation of the average value of the parameter Ra from the nominal value and the permissible standard deviation from the average value Ra must correspond to those specified in Table 3.
Table 3
|
Processing method |
Permissible deviation of the average value Ra from the nominal value, % |
Permissible standard deviation s, |
|
grinding |
||
|
Boring |
||
|
Milling |
||
|
Planing |
||
|
EDM |
||
|
Sandblasting and shot blasting |
||
|
Polishing |
Note - The allowable standard deviation is given for the evaluation length containing 5 basic lengths. For another number n of base lengths in the evaluation length, the deviation s n is determined by the formula
5.4 The main direction of the irregularities (see Table 1) should be parallel to the shorter side of the specimen.
5.5 Samples must be demagnetized.
5.6 Completeness of samples
Roughness samples are completed in sets. Each set of samples is accompanied by a passport according to GOST 2.601 containing a list of samples included in the set, reproducible processing methods and roughness parameter values, including additional ones at the request of the customer (see note to 4.2).
Note - It is allowed to supply individual roughness samples outside the set.
5.7 Marking
On the case or frame in which the roughness samples are packed, the following should be applied:
1) on the case:
The words "roughness samples";
Method (or methods) of processing;
Name and / or trademark of the manufacturer;
Set serial number;
The designation of this standard;
2) on the frame (or a separate sample):
Nominal value of the roughness parameter Ra (for each sample separately);
The material (materials) of the parts for which the samples are intended to be controlled;
processing method.
5.8 Packaging of roughness samples - according to GOST 13762.
6 SAMPLE CONTROL METHODS
Checking roughness samples - according to MI 1850.
7 ACCEPTANCE RULES
7.1 To check the conformity of surface roughness samples with the requirements of this standard, acceptance control and periodic tests are carried out.
7.2 During acceptance control, each roughness sample must be checked for compliance with the requirements of 5.2 and 5.5; for compliance with the requirements of 5.3 check randomly. The sample size is determined according to the normative and technical documentation approved in the prescribed manner.
7.3 Upon acceptance, the samples are subjected to the following tests:
7.3.1 When checking the effect of transport shaking, a shock stand is used that creates shaking with an acceleration of 30 m/s at a frequency of 80-120 beats per minute.
The samples in the package are attached to the stand and tested with a total number of impacts of 15,000. It is allowed to test the samples by transporting them on a truck at a speed of 20 to 40 km/h, for a distance of 100 km along a dirt road.
After testing, the specimens shall conform in appearance to 5.2.
7.3.2 The impact of climatic environmental factors is checked in climatic chambers. Samples in a package are tested in the following mode: first at a temperature of minus (50+3)°C, and then plus (50±3)°C, and then at a relative humidity of (95±3)% at a temperature of 35°C. Exposure in a climatic chamber for each type of test is at least 2 hours. After testing, the samples in appearance must comply with 5.2.
7.4 Periodic tests for compliance with all the requirements of this standard are carried out at least once every three years, and for samples made by the electroforming method, at least once every five years.
If during testing it is found that the product complies with all the requirements of this standard, the results of periodic tests are considered satisfactory.
8 TRANSPORT AND STORAGE
Transportation and storage - according to GOST 13762.
9 MANUFACTURER WARRANTY
9.1 The manufacturer guarantees that the surface roughness samples (comparison) meet the requirements of this standard, subject to the conditions of operation, transportation and storage.
9.2 Warranty period - 24 months from the date of putting the samples into operation.
Keywords: surface roughness, roughness control, roughness samples (comparisons), specifications
GOST 9378-93
(ISO 2632-1-85,
ISO 2632-2-85)
INTERSTATE STANDARD
ROUGHNESS SAMPLES
SURFACES (COMPARATIONS)
GENERAL SPECIFICATIONS
INTERSTATE COUNCIL
ON STANDARDIZATION, METROLOGY AND CERTIFICATION
Minsk
Foreword
1 DESIGNED BY THE RUSSIAN FEDERATION
INTRODUCED by the Technical Secretariat of the Interstate Council for Standardization, Metrology and Certification
2 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 4-93 dated October 21, 1993)
|
State name |
Name of the national standardization body |
|
Republic of Azerbaijan |
Azgosstandart |
|
Republic of Armenia |
Armstate standard |
|
Republic of Belarus |
Belstandard |
|
The Republic of Kazakhstan |
State Standard of the Republic of Kazakhstan |
|
Kyrgyz Republic |
Kyrgyzstandart |
|
The Republic of Moldova |
Moldovastandard |
|
the Russian Federation |
Gosstandart of Russia |
|
The Republic of Tajikistan |
Tajik State Center for Standardization, Metrology and Certification |
|
Turkmenistan |
Turkmenglavstate inspection |
|
The Republic of Uzbekistan |
Uzgosstandart |
|
Ukraine |
State Standard of Ukraine |
This International Standard is the complete authentic text of ISO 2632-1-85 Comparative roughness test pieces - Part 1: Surfaces obtained by turning, grinding, boring, milling and planing and ISO 2632-2-85 Comparison roughness test pieces - Part 2: Surfaces obtained by electroerosive, shot blasting, sandblasting and polishing" and contains additional requirements that reflect the needs of the country's economy
3 By the Decree of the Committee of the Russian Federation for Standardization, Metrology and Certification dated February 7, 1996 No. 54, the interstate standard GOST 9378-93 (ISO 2632-1-85 and ISO 2632-2-85) was put into effect directly as the state standard of the Russian Federation since January 1, 1997
4 INSTEAD OF GOST 9378-75
GOST 9378-93
(ISO 2632-1-85,
ISO 2632-2-85)
INTERSTATE STANDARD
SURFACE ROUGHNESS SAMPLES (COMPARATIONS)
Generaltechnicalconditions
Roughness comparison specimens.
General specifications
Introduction date 1997-01-01
1 AREA OF USE
This standard applies to surface roughness (comparison) samples intended for visual and tactile comparison with product surfaces obtained by cutting, polishing, electroerosive, shot blasting and sandblasting.
2 REGULATORY REFERENCES
This standard uses references to the following standards:
4 CLASSIFICATION, MAIN PARAMETERS AND DIMENSIONS
4.1 The processing methods reproduced by the samples, the shape of the sample and the main direction of the surface irregularities of the sample must comply with those specified in.
Table 1
|
sample shape |
Conventional designation of the processing method |
Location of irregularities |
||
|
Description |
Conditional image |
|||
|
Turning |
Cylindrical convex |
rectilinear |
||
|
Boring |
Cylindrical concave |
|||
|
Milling cylindrical |
flat |
FC |
||
|
Planing |
flat |
|||
|
Grinding the periphery of the circle |
flat, |
ShP |
||
|
cylindrical convex, |
SC |
|||
|
cylindrical concave |
ShCV |
|||
|
Face turning |
flat |
TT |
arcuate |
|
|
Face milling |
flat |
FT |
||
|
Face milling |
flat |
FTP |
Crossed arcuate |
|
|
face grinding |
flat |
PCS |
||
|
Cup grinding |
flat |
SHCH |
||
|
EDM |
flat |
Not having a specific stroke direction |
||
|
Shot blasting, sandblasting |
flat |
DC PS |
||
|
Polishing |
Flat, cylindrical convex |
PP HRC |
Confused stroke |
|
Note - Roughness samples should characterize the features of only a reproducible processing method.
Roughness parameter Ra, µm
base length l, mm
grinding
0,050
0,25
0,100
0,25
0,200
0,25
0,400
0,80
0,800
0,80
1,600
0,80
3,200
2,50
Turning and boring
12,5
Milling
12,5
Planing
12,5
25,0
EDM
12,5
Shot blasting and sandblasting
12,5
25,0
Polishing
0,006
0,08
0,0125
0,08
0,025
0,08
0,050
0,25
0,100
0.25
0,200
0,80
Notes
1 The average step of the surface irregularities of the sample should not exceed 1/3 of the base length.
2 The range of parameter values given in the table Ra - preferred. It is allowed to manufacture samples with other values of the Ra parameter in accordance with GOST 2789 with a gradation of at least 2.
3 Small values of the Ra parameter (up to 0.1 µm) are given mainly not for comparison with the surfaces of controlled parts, but in order to give the user an idea of the differences between these values (for example, 0.006; 0.0125; 0.025; 0 .05 and 0.1 µm) that can be visually marked.
4.3 The width of the reference specimens must be at least 20 mm. The length of the samples must be at least:
20 mm with Ra from 0.025 to 12.5 µm and base length up to 2.5 mm;
30 mm at Ra from 6.3 to 12.5 µm and base length 8 mm;
50 mm at Ra equal to 25 µm.
The radius of curvature of cylindrical samples should be within 20-40 mm.
4.4 Sample preparation methods Samples may be produced:
By applying a processing method that should reproduce the sample;
Galvanoplastic method of making positive prints from matrices;
Production from matrices of positive prints made of plastic or other materials and reproducing the treated surface in appearance and touch.
4.5 Designation of specimens
In the symbol of a sample (or a set of samples), the roughness is indicated by:
Nominal value (or range of values for a set) of the roughness parameter Ra;
Conventional designation of the processing method (according to);
Designation of this standard.
For example: Roughness sample 1.6 ShCh GOST 9378-93 or A set of roughness samples 0.2-0.8 ShTsV GOST 9378-93, where 1.6 and 0.2-0.8 are the values of the roughness parameter Ra; ShCh - grinding with a bowl-shaped circle; ШЦВ - grinding by the periphery of the circle, the shape of the sample is cylindrical concave.
5 GENERAL SPECIFICATIONS
5.1 Surface roughness samples must be made in accordance with the requirements of this standard according to the design documentation approved in the prescribed manner.
Permissible deviation of the average value Ra from the nominal value, %
Permissible standard deviations,
grinding
Turning
Boring
Milling
Planing
EDM
Sandblasting and shot blasting
Polishing
Note - The allowable standard deviation is given for the evaluation length containing 5 basic lengths. For other quantity n base lengths in length estimation deviations n determined by the formula
5.4 The main direction of the irregularities (see ) should be parallel to the shorter side of the specimen.
5.6 Completeness of samples
Roughness samples are completed in sets. Each set of samples is accompanied by a passport according to GOST 2.601 containing a list of samples included in the set, reproducible processing methods and roughness parameter values, including additional ones at the request of the customer (see note to).
Note - It is allowed to supply individual roughness samples outside the set.
5.7 Marking
On the case or frame in which the roughness samples are packed, the following should be applied:
1) on the case:
The words "roughness samples";
Method (or methods) of processing;
Name and / or trademark of the manufacturer;
Set serial number;
The designation of this standard;
2) on the frame (or a separate sample):
Rated value of the roughness parameter Ra (for each sample separately);
The material (materials) of the parts for which the samples are intended to be controlled;
processing method.
5.8 Packaging of roughness samples - according to GOST 13762.
6 SAMPLE CONTROL METHODS
Checking roughness samples - according to MI 1850.
7 ACCEPTANCE RULES
7.1 To check the conformity of surface roughness samples with the requirements of this standard, acceptance control and periodic tests are carried out.
7.2 During acceptance control, each roughness sample must be checked for compliance with the requirements and; for compliance with the requirements are checked randomly. The sample size is determined according to the normative and technical documentation approved in the prescribed manner.
7.3 Upon acceptance, the samples are subjected to the following tests:
7.3.1 When checking the effect of transport shaking, a shock stand is used that creates shaking with an acceleration of 30 m/s at a frequency of 80-120 beats per minute.
The samples in the package are attached to the stand and tested with a total number of impacts of 15,000. It is allowed to test the samples by transporting them on a truck at a speed of 20 to 40 km/h, for a distance of 100 km along a dirt road.
After testing, the samples in appearance must conform.
7.3.2 The impact of climatic environmental factors is checked in climatic chambers. Tests of samples in the package are carried out in the following mode: first at a temperature of minus (50 + 3)° C, and then plus (50 ± 3) ° C and further at a relative humidity of (95 ± 3)% at a temperature of 35 ° C. Exposure in a climatic chamber for each type of test is at least 2 hours. After testing, the samples must correspond in appearance to .
7.4 Periodic tests for compliance with all the requirements of this standard are carried out at least once every three years, and for samples made by the electroforming method, at least once every five years.
If during testing it is found that the product complies with all the requirements of this standard, the results of periodic tests are considered satisfactory.
8 TRANSPORT AND STORAGE
Transportation and storage - according to GOST 13762.
9 MANUFACTURER WARRANTY
9.1 The manufacturer guarantees that the surface roughness samples (comparison) meet the requirements of this standard, subject to the conditions of operation, transportation and storage.
9.2 Warranty period - 24 months from the date of putting the samples into operation.
Keywords: surface roughness, roughness control, roughness samples (comparisons), specifications