Abstract
Thin-walled sealing parts are typical difficult machining parts due to their lower stiffness and higher machining accuracy requirements. Among all the influential factors on the distortion of thin-walled parts, machining-induced residual stress (MIRS) plays a key role. In this paper, the effects of the MIRS changed with the number of cuts and the allocation of cutting depth on the distortion of the sealing part are investigated. Firstly, the MIRS is obtained by a finite element cutting simulation model of the AISI304L stainless steel material. Then, the obtained MIRS is applied to the workpiece, and the distortion of the workpiece is simulated after releasing the clamping constraints. The simulation results show that the multi-cutting processes and the reasonable allocation of cutting depth have a remarkable influence on the control of the workpiece distortion.
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