T/CSAA 2-2020 Detection methods for residual stress in thin-walled components

Scope

Scope: This document specifies the X-ray and ultrasonic testing methods and principles, general requirements, samples, testing process, and testing reports for the detection of residual stress in thin-walled parts. This document is applicable to the detection of residual stress in metal parts with thin-walled structures and similar structures. Main technical content: 4 Testing principles and methods 4.1 X-ray stress testing 4.2 Ultrasonic stress testing 5 General requirements 5.1 Personnel 5.2 Stress testing system 5.3 Environment 6 Samples 6.1 Requirements and surface treatment of samples 6.2 Cutting of samples 6.3 Delamination treatment of samples 6.4 Marking of samples 7 Testing process and implementation 7.1 Residual stress testing process 7.2 Selection of testing methods 7.3 Selection of testing conditions and parameters 7.4 Verification or calibration of the testing system 7.5 Confirmation of the testing environment 7.6 Residual stress testing 7.7 Processing and calculation of testing data 7.8 Statistical analysis and evaluation of results 8 Testing reports Appendix A (Normative) Stress reference samples and equipment verification Appendix B (Informative) Evaluation and control of residual stress detection in parts Appendix C (Informative) Residual stress testing report

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