Transactions of Materials and Heat Treatment

Title：Quenching deformation laws of large thin-walled special-shaped spinning parts with curved surface for aluminum alloy

Authors：

Unit：

KeyWords： aluminum alloy thin-walled parts spinning finite element analysis quenching deformation laws

ClassificationCode：TG156.34

year,vol(issue):pagenumber：2021,46(6):203-211

Abstract：

In order to improve the manufacturing precision of aluminum alloy thin-walled parts, the quenching deformation laws of large thin-wall special-shaped spinning parts with curved surface for aluminum alloy were studied. Based on the ABAQUS software platform, a finite element model of the quenching process was established, and the quenching deformation characteristics were obtained, as well as the effects of solution temperature, quenchant temperature, immersion direction and immersion speed of quenching on the quenching deformation for components. The results show that the component will shrink or expand as a whole after quenching, and the big end surface presents the periodic wave-shape warping characteristics. The quenching deformation of components can be significantly reduced by decreasing the solid solution temperature and increasing the immersion speed of quenching. The quenching deformation mode and the maximum deformation position of components are changed by the quenchant temperature. Finally, the quenchant temperature suitable for head component with smaller quenching deformation is 40 ℃. Compared with the immersion direction of quenching with opening upward, the quenching deformation of the big end surface for head component obviously decreases when the quenching immersed direction of opening downward is applied.

Funds：

国家杰出青年科学基金资助项目(51625505)；航天先进制造技术研究联合基金项目(U1537203)

作者简介：崔笑蕾(1983-)，女，博士研究生 E-mail：cuixiaolei@mail.nwpu.edu.cn 通信作者：詹梅(1972-)，女，博士，教授 E-mail：zhanmei@nwpu.edu.cn

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