ISO 26910-1:2023
Springs — Shot peening — Part 1: General procedures
This document specifies general requirements for the shot peening process applied to springs in order to improve their resistance to fatigue and stress corrosion cracking, mainly by introducing compressive residual stresses into their surface layers.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Strategies for conducting shot peening
4.1 General
4.2 Mode of shot peening
4.3 Conditions of shot peening
4.4 Category of shot peening machine
4.5 Protection of non-peening surface
4.6 Pre- and post-peening treatments
5 Peening media
6 Almen strip
6.1 Class of Almen strip
6.2 Selection of the class of Almen strip
6.3 Almen strip holder
7 Method of measurement
7.1 Measurement of Almen arc height
7.2 Evaluation of coverage
7.3 Determination of saturation time
8 Shot peening machine
9 Control of shot peening
9.1 Almen arc height
9.2 Coverage
10 Measurement of residual stress
11 Report
Annex A (informative) Standard photographs of coverage
Annex B (informative) Saturation time
Annex C (informative) Almen gauge
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Strategies for conducting shot peening
4.1 General
4.2 Mode of shot peening
4.3 Conditions of shot peening
4.4 Category of shot peening machine
4.5 Protection of non-peening surface
4.6 Pre- and post-peening treatments
5 Peening media
6 Almen strip
6.1 Class of Almen strip
6.2 Selection of the class of Almen strip
6.3 Almen strip holder
7 Method of measurement
7.1 Measurement of Almen arc height
7.2 Evaluation of coverage
7.3 Determination of saturation time
8 Shot peening machine
9 Control of shot peening
9.1 Almen arc height
9.2 Coverage
10 Measurement of residual stress
11 Report
Annex A (informative) Standard photographs of coverage
Annex B (informative) Saturation time
Annex C (informative) Almen gauge
Bibliography