Optimal design of quenching fixture for multi-arc head used in aerospace

doi:10.13251/j.issn.0254-6051.2020.09.048

Abstract

Abstract: Quenching treatment method for a multi-arc head parts used in aerospace products was developed.Through the finite element analysis,the thermal tend for the multi-arc head under the constraint of the bottom was studied.The 3D model of the multi-arc head quenching fixture was established,and the basic structure of the multi-arc head quenching fixture was introduced.The results of thermal distortion distribution for the multi-arc head under the constraint of quenching fixture are obtained by the finite element analysis(FEM).The FEM results show that the total distortion of multi-arc head is 16.0 mm,in Z direction is 15.0 mm,and in X direction is 8.5 mm.Through the analysis of the local thermal distortion of the multi-arc head quenching fixture,the optimal design scheme of the quenching fixture is proposed.The thermal distortion distribution of the multi-arc head is optimized.The total distortion is 7.0 mm,in Z direction is 10.0 mm,and in X direction is 3.0 mm.The problem for large distortion of the multi-arc head heat treatment is solved and verified by production.

Key words: multi-arc head, finite element analysis, thermal distortion, optimal design

CLC Number:

TG15

Lin Lei, He Feifei, Lin Gang, Chen Yong, Ran Haijun. Optimal design of quenching fixture for multi-arc head used in aerospace[J]. Heat Treatment of Metals, 2020, 45(9): 257-261.

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