T/CSAA 1-2020 Method for Eliminating Residual Stress in Thin-Walled Parts by Modal Broadband Vibration

Scope

Scope: This document specifies the terms and definitions, equipment and devices, selection of process parameters and technical requirements, process flow, evaluation of effects, and requirements for reports and process records for the elimination of residual stress by modal broadband vibration of thin-walled parts. This document is applicable to thin-walled parts such as thin discs, wall panels, rings, thin cylinders, blades, and welded thin-walled casings made of titanium alloys, aluminum alloys, high-temperature alloys, and steel. Main technical content: 4. Equipment requirements 5. Selection of process parameters and technical requirements 5.1 Vibration modes 5.2 Modal frequencies 5.3 Excitation amplitude values 5.4 Vibration time 6. Design of tooling fixtures and part clamping 6.1 Design of tooling fixtures 6.2 Part clamping 7. Process flow 7.1 Process flow for eliminating residual stress 7.2 Work requirements for eliminating residual stress by modal broadband vibration 8. Evaluation of effects 9. Reports and records 9.1 Effect evaluation report 9.2 Process records Appendix A (Normative) - Analysis methods before modal broadband processing Appendix B (Informative) - Evaluation report on the effect of eliminating residual stress by modal broadband vibration Appendix C (Informative) - Process record card for eliminating residual stress by modal broadband vibration

Development Information

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