Effects of spinning parameters on microstructures of ellipsoidal heads during marginal-restraint mandrel-free spinning

doi:10.1007/s40436-020-00322-1

Advances in Manufacturing ›› 2020, Vol. 8 ›› Issue (4): 457-472.doi: 10.1007/s40436-020-00322-1

• ARTICLES • 上一篇

Effects of spinning parameters on microstructures of ellipsoidal heads during marginal-restraint mandrel-free spinning

Jia-Yang Chen¹, Yong-Cheng Lin^1,2, Guo-Dong Pang¹, Xin-He Li¹

1 School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, People's Republic of China;
2 State Key Laboratory of High Performance Complex Manufacturing, Changsha 410083, People's Republic of China

收稿日期:2020-03-11 修回日期:2020-06-30 发布日期:2020-12-07
通讯作者: Yong-Cheng Lin E-mail:yclin@csu.edu.cn
基金资助:
This work was supported by the National Natural Science Foundation of China (Grant No. 51775564), the 973 Program (Grant No. 2014CB046600), and the Fundamental Research Funds for the Central Universities of Central South University (Grant No. 2019zzts946).

Effects of spinning parameters on microstructures of ellipsoidal heads during marginal-restraint mandrel-free spinning

Jia-Yang Chen¹, Yong-Cheng Lin^1,2, Guo-Dong Pang¹, Xin-He Li¹

1 School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, People's Republic of China;
2 State Key Laboratory of High Performance Complex Manufacturing, Changsha 410083, People's Republic of China

Received:2020-03-11 Revised:2020-06-30 Published:2020-12-07
Contact: Yong-Cheng Lin E-mail:yclin@csu.edu.cn
Supported by:
This work was supported by the National Natural Science Foundation of China (Grant No. 51775564), the 973 Program (Grant No. 2014CB046600), and the Fundamental Research Funds for the Central Universities of Central South University (Grant No. 2019zzts946).

摘要/Abstract

摘要： Marginal-restraint mandrel-free spinning is an advanced technology for manufacturing ellipsoidal heads with large diameter-thickness ratios. The effects of spinning parameters on the forming accuracy of ellipsoidal heads have been studied, and optimized spinning parameters have been obtained. The microstructure evolution of a workpiece is usually very complicated in the spinning process. In this work, the influence of spinning parameters on the microstructures of two-pass spun ellipsoidal heads is studied. It is found that the forming angle and feed rate of the first pass, angle between passes, and feed rate of the second pass significantly affect the microstructures. Meanwhile, the evolution rule of the microstructures near the inner and outer surfaces of the spun parts is almost consistent. A large forming angle, large angle between passes, or large feed rate of the second pass are beneficial to obtain uniform microstructures. A small or large feed rate of the first pass reduces the microstructure uniformity. To improve the microstructure uniformity between the inner and outer surfaces, the optimized spinning parameters are determined.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-020-00322-1

关键词: Spinning, Thin-walled ellipsoidal heads, Spinning parameters, Microstructure evolution

Abstract: Marginal-restraint mandrel-free spinning is an advanced technology for manufacturing ellipsoidal heads with large diameter-thickness ratios. The effects of spinning parameters on the forming accuracy of ellipsoidal heads have been studied, and optimized spinning parameters have been obtained. The microstructure evolution of a workpiece is usually very complicated in the spinning process. In this work, the influence of spinning parameters on the microstructures of two-pass spun ellipsoidal heads is studied. It is found that the forming angle and feed rate of the first pass, angle between passes, and feed rate of the second pass significantly affect the microstructures. Meanwhile, the evolution rule of the microstructures near the inner and outer surfaces of the spun parts is almost consistent. A large forming angle, large angle between passes, or large feed rate of the second pass are beneficial to obtain uniform microstructures. A small or large feed rate of the first pass reduces the microstructure uniformity. To improve the microstructure uniformity between the inner and outer surfaces, the optimized spinning parameters are determined.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-020-00322-1

Key words: Spinning, Thin-walled ellipsoidal heads, Spinning parameters, Microstructure evolution

Jia-Yang Chen, Yong-Cheng Lin, Guo-Dong Pang, Xin-He Li. Effects of spinning parameters on microstructures of ellipsoidal heads during marginal-restraint mandrel-free spinning[J]. Advances in Manufacturing, 2020, 8(4): 457-472.

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[2]	Ze-Xing Su, Chao-Yang Sun, Ming-Wang Fu, Ling-Yun Qian. Physical-based constitutive model considering the microstructure evolution during hot working of AZ80 magnesium alloy[J]. Advances in Manufacturing, 2019, 7(1): 30-41.
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Effects of spinning parameters on microstructures of ellipsoidal heads during marginal-restraint mandrel-free spinning

Effects of spinning parameters on microstructures of ellipsoidal heads during marginal-restraint mandrel-free spinning

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