To solve the springback and welding deformation problem of case shell, a new sizing method based on rubber fluid forming was proposed. Using a casing as the object of study, the pressure of case shell sizing is preliminarily determined by theoretical calculation. The dynamic explicit finite element method is adopted in the plastic deformation mechanism and circular alignment behavior of thin-walled welded cylindrical parts with the same basic characteristics as the casing is analyzed. And the results of finite element analysis show that the initial diameter, runout and wall thickness of the cylinder have influence on the runout orrection effect. The calibration effect of rubber fluid forming method was verified by a self-made calibration device.
刘心,郭慧英,陈宇凯,马保伟,韩 宾,张琦. 薄壁焊接机匣橡皮囊胀形法校形研究[J]. 航空制造技术, 2023, 66(1/2): 74-83.
LIU Xin, GUO Huiying, CHEN Yukai, MA Baowei, HAN Bin, ZHANG Qi. Research on Welding Case Shell Sizing by Rubber Fluid Forming[J]. Aeronautical Manufacturing Technology, 2023, 66(1/2): 74-83.