Machining scheme of aviation bearing bracket based on additive and subtractive hybrid manufacturing
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DOI 10.1007/s12206-020-0829-5
Journal of Mechanical Science and Technology 34 (9) 2020 Original Article DOI 10.1007/s12206-020-0829-5 Keywords: · Additive manufacturing · Aviation bearing bracket · Hybrid manufacturing · Process planning · Subtractive manufacturing
Correspondence to: Zhongqi Sheng [email protected]
Citation: Xie, Y., Tong, J., Fu, Y., Sheng, Z. (2020). Machining scheme of aviation bearing bracket based on additive and subtractive hybrid manufacturing. Journal of Mechanical Science and Technology 34 (9) (2020) 3775~3790. http://doi.org/10.1007/s12206-020-0829-5
Received January 21st, 2020 Revised
March 20th, 2020
Accepted July 3rd, 2020
Machining scheme of aviation bearing bracket based on additive and subtractive hybrid manufacturing Yunpeng Xie, Jianbin Tong, Yuqiang Fu and Zhongqi Sheng College of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
Abstract
Aviation bearing bracket is an important part of aircraft and other aviation products. In this paper, based on additive and subtractive hybrid manufacturing technology with high manufacturing flexibility and high machining accuracy, a machining scheme of aviation bearing bracket is designed. First, milling simulation was carried out to obtain the influence law of different cutting parameters on machining deformation, so as to guide the selection of reasonable finish machining parameters in the subsequent process planning. Then, the temperature field distribution of workpiece in the additive manufacturing was simulated, and the influence of different additive manufacturing parameters on the results was analyzed to determine the parameter selection range. Finally, considering the material utilization rate, machining accuracy, machining efficiency and machinability in the machining process of aviation bearing bracket, and proceeding from additive, subtractive and alternating manufacturing methods, the manufacturing process arrangement and process planning for aviation bearing bracket were designed.
† Recommended by Editor Hyung Wook Park
1. Introduction
© The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2020
Hybrid manufacturing technology can realize the free conversion between five-axis milling and laser metal additive manufacturing, so that additive processing and subtractive processing can be used as the previous process to each other. The two different process modules are integrated on the same equipment, achieving the effect of “1+1>2”. Not only can hybrid manufacturing technology machine a complex workpiece with undercut feature but also repair the existing parts. More importantly, it is possible to customize the process planning of key parts such as aviation bearing bracket with hardly machining complex hollow surface [1]. It can realize the real-time conversion between additive manufacturing and subtractive manufacturing on one equipment, avoiding the repeated clamping parts and ensuring the immediacy of each machining process. Comp
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