钢铁钒钛2026，Vol.47Issue(2)：9-17,9.DOI:10.7513/j.issn.1004-7638.2026.02.002
钛合金薄壁环件制造过程残余应力与加工变形模拟与优化
Simulation analysis and process optimization of residual stress and ma-chining deformation in the manufacturing of thin-walled titanium alloy rings
摘要
Abstract
Thin-walled titanium alloy rings are critical aerospace components,whose machining de-formation severely restricts their dimensional accuracy and service reliability.A full-process finite ele-ment model covering rolling,cooling,heating,bulging and heat treatment was established for rectangu-lar thin-walled titanium alloy rings,to systematically investigate residual stress evolution during form-ing and its effect on machining deformation.The regulation mechanism of bulging on the stress field was revealed by analyzing stress distribution under different bulging parameters,and a theoretical mod-el correlating residual stress and machining deformation was constructed and verified via simulation and experiments.Results show that residual stress mainly originates from the initial cooling stage,and sub-sequent bulging and heat treatment can significantly reduce stress amplitude and improve distribution uniformity.The optimal residual stress state is achieved at a bulging ratio of 4%and a bulging temperat-ure of 800 ℃.Simulation results are in good agreement with theoretical calculations,with a maximum error of 20.37%.The optimized process and model were validated effective for special-shaped rings,providing a theoretical basis and process guidance for residual stress regulation and deformation control of titanium alloy thin-walled rings.关键词
钛合金环件/胀形工艺/残余应力/机加工变形/有限元模拟Key words
titanium alloy ring/bulging process/residual stress/machining deformation/finite element simulation分类
矿业与冶金引用本文复制引用
王天乐,邓加东,钱东升,丁佐军,刘超..钛合金薄壁环件制造过程残余应力与加工变形模拟与优化[J].钢铁钒钛,2026,47(2):9-17,9.基金项目
国家重点研发计划项目(2024YFB3714200) （2024YFB3714200）
国家自然科学基金资助项目(52475397) （52475397）
高等学校学科创新引智计划资助项目(B17034) （B17034）
教育部创新团队发展计划项目(No.IRT_17R83). （No.IRT_17R83）
