Transactions of Materials and Heat Treatment

Title：Reverse modeling and optimization of process parameters for aviation pipe joint spinning connection device

Authors： Wang Wei Wang Juanxi Xiao Junlei Yang Baolin Zhang Shuangjie Su Ru

Unit： Hebei University of Science and Technology Shijiazhuang Haishan Industrial Development Corporation

KeyWords： aviation pipe joint spinning connection reverse modeling response surface method filling rate

ClassificationCode：TG386；V262.3

year,vol(issue):pagenumber：2022,47(2):106-112

Abstract：

For the spinning connection of unflared titanium alloy aviation pipe joint, the spinning connection device was modeled by reverse technology, and the finite element model of the spinning connection for aviation pipe joint was established by finite element software Deform-3D. Then, based on finite element analysis, taking the main process parameters as variables and the filling rate as the optimization objective, a complete second-order response surface function model was established by the response surface method. And through the optimal solution of the response surface function model, the reasonable combination of process parameters was obtained as the rotation speed of mandrel of 2.68 r·s-1, the axial feeding speed of mandrel of 0.11 mm·s-1 and the filling rate predicted by the model of 93.3%. Furthermore, the filling rate of numerical simulation with the optimized parameters was 93.1%, and the relative error with the model predicted value was 0.21%. The filling rate of the experimental workpiece was 92.8%, and the relative error with the model predicted value was 0.54%. In addition, the main properties of the experimental workpiece were tested. The results show that the constructed response surface function model has high precision, after the optimized parameters are used, the inner wall of pipe is deformed uniformly, the filling effect of pipe sleeve groove is good, and the performance of pipe connection joint is excellent.

Funds：

河北省重点研发计划项目（19251019D）；2020年河北省重点研究项目（JMRH）；快速扶持项目（61400020112）

作者简介：王伟（1986-），男，博士，讲师 ,E-mail：18631175658@163.com;通信作者：张双杰（1966-），男，博士，教授 ,E-mail：zsjzlili@163.com

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