Research on Stress and Strain Distribution during Multi-Pass Conventional Spinning under Different Roller Motion Modes
Establishing a reasonable mechanical model for multi-pass conventional spinning and typical drawing spinning is the object of the present study. Research on stress and strain distribution during multi-pass conventional spinning processing under three modes of roller motion, i.e., one-way moving without profiling, one-way moving with profiling, and two-way moving with profiling, is carried out using elasto-plastic FEM method. Though the equivalent stress distribution under these three modes of roller motion is similar, there exists significant difference in magnitude, with the equivalent stress in the close-mandrel area being the highest in the case of profiled one-way moving. As far as the strain is concerned, it has a similar distribution as the equivalent stress, with the strain in the close-mandrel area under one-way moving with profiling having the highest value. In the case of roller two-way moving with profiling, the strain distribution is the most homogeneous, while the work-hardening of the blank is the most serious. In all cases, both stress and strain in the deforming zone increase with increasing spinning passes.
Chengyu Jiang, Geng Liu, Dinghua Zhang and Xipeng Xu
J. H. Liu and H. Yang, "Research on Stress and Strain Distribution during Multi-Pass Conventional Spinning under Different Roller Motion Modes ", Materials Science Forum, Vols. 532-533, pp. 205-208, 2006