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Research on Stress and Strain Distribution during Multi-Pass Conventional Spinning under Different Roller Motion Modes

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Abstract:

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.

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Periodical:

Materials Science Forum (Volumes 532-533)

Pages:

205-208

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.532-533.205

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Online since:

December 2006

Authors:

Jian Hua Liu, He Yang

Keywords:

Mulit-Pass Conventional Spinning, Roller Motion Modes, Stress, Stress Distribution

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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