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GOST 18295-72

GOST 18295−72 Treatment hardening. Terms and definitions


GOST 18295−72

Group B00

STATE STANDARD OF THE USSR

TREATMENT HARDENING

Terms and definitions

Surface Working. Terms and Definitions

Valid from 01.01.74
to 01.01.79*
_________________
* Tested in 1979
The restriction of period of validity cancelled
(ICS, No. 3, 1980). — Note the CODE.

DEVELOPED
All-Union scientific-research Institute for normalization in mechanical engineering (VNIINMASH)

The Director candidate. tech. Sciences, Verchenko V. R.

The head of the candidate. tech. Sciences Kubarev A. I.

Responsible candidate. tech. Sciences A. M. Usov

All-Union scientific research Institute of technical information, classification and coding (VNIIKI)

The Director candidate. tech. Sciences Panfilov E. A.

The head of the candidate. tech. Sciences Sukhov N. To.

Performers: candidate. tech. Sciences Nikiforov, V. P., Morozova, E. A., engineer

MADE of all-Union scientific-research Institute for normalization in mechanical engineering (VNIINMASH)

The Director candidate. tech. Sciences, Verchenko V. R.

READY FOR ADOPTION

Department of General technical standards and Technical management of the USSR state standard

Head of Department Saburova M. sh.

St. engineer Rasiwasia N. T.

Department of standardization methods to ensure reliability of machinery all-Union scientific-research Institute for normalization in mechanical engineering (VNIINMASH)

The head of the candidate. tech. Sciences Kubarev A. I.

Responsible candidate. tech. Sciences A. M. Usov

APPROVED by the State standards Committee of the USSR Council of Ministers on 29 September 1972 (report No. 142)

The Chairman of the branch scientific and technical Committee Deputy Chairman of Gosstandart of the USSR Vladimir Tkachenko

Members: Lyamin B. N., Panfilov E. A., Sharonov G. N., Gliches A. V., V. R. Varchenko, Burenkov G. K., Kiselev B. R.

Promulgated by Decree of the State Committee of standards of Ministerial Council of the USSR of 25 December 1972 2322 N


This standard sets used in science, engineering and manufacturing of terms and definitions of basic concepts in the field of strengthening treatment.

The terms set out in this standard are mandatory for use in all types of documentation, manuals, tutorials, technical and reference literature.

For each concept has a single standardized term. The use of terms-synonyms of the normalized term is prohibited. Unacceptable for use synonymous terms given in the standard as a reference and is marked with the note «NDP».

Standardized terms are shown in bold and invalid synonyms in italics.

In the standard as reference is given to foreign equivalents in German (D) English (E) languages.

The term
Definition

1. Hardening

D. Verfestigung

ГОСТ 18295-72 Обработка упрочняющая. Термины и определения

E. Strengthening

Hardening

Strengthening the resilience of the material of the workpiece or the destruction or permanent deformation
2. Volumetric hardening
Hardening the entire section

3. Surface hardening

NDP. Surface hardening

D. ГОСТ 18295-72 Обработка упрочняющая. Термины и определения

ГОСТ 18295-72 Обработка упрочняющая. Термины и определения

E. Surface Strengthening

Surface Hardening

Hardening change the properties of the surface layer.

Note. Hardening of the surface layer — surface hardening, which increases resistance of the surface layer destruction or permanent deformation.

4. Hardening treatment

D. Verfestigungsgehandlung

E. Strengthening Treatment
Processing that creates the hardening.

Note. Depending on the type of processing — the processing of plastic deformation, heat treatment, chemical treatment, etc. are distinguished: «strengthening processing by plastic deformation», «a hardening heat treatment», «chemical strengthening treatment», etc.

5. Volumetric hardening treatment
Processing, creating a volumetric hardening
6. Surface hardening treatment
Treatment that creates surface hardening
7. Combined hardening treatment
Hardening treatment performed simultaneously by multiple methods.

Note. Examples of combined hardening treatment are: «a hardening chemical-thermal processing», «hardening deformation-heat treatment», etc.

8. Combined volumetric hardening treatment
Combined hardening treatment, creating a volumetric hardening
9. Combined surface hardening treatment
Combined hardening treatment that creates surface hardening
10. Combined hardening treatment
Hardening treatment, performed in sequence by several methods.

Note. An example of combined hardening treatment is a thermal hardening treatment followed by surface plastic deformation

11. The degree of hardening
The relative increase in the value of a given parameter of resilience of the material of the workpiece or the destruction or permanent deformation compared to the baseline as a result of hardening treatment
12. The thickness of the surface hardened layer
The shortest distance from the surface of the material or workpiece to a notional surface, whose points correspond to a given value of the parameter is the resistance of the material of the workpiece or the destruction or permanent deformation


The text of the document is verified by:
the official publication of the
M.: Publishing house of standards, 1973