Galling failure analysis in sheet metal forming process |
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| Authors: | Ying-ke Hou Zhong-qi Yu and Shu-hui Li |
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| Institution: | HOU Ying-ke1,2,YU Zhong-qi1,LI Shu-hui1 (1. Shanghai Key Lab of Digital Autobody Engineering,Shanghai Jiaotong University,Shanghai 200240,China,2. School of Mechanical Engineering,Zhejiang Forestry University,Hangzhou 311300,China) |
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| Abstract: | Galling is a known failure mechanism in sheet metal forming operations,and it can lead to fracture of the products and jamming of the tool. The temperature field and normal contact pressure distributions of the tool and the blank were studied with a finite element analysis model under the action of different blank holder force and frictional coefficient. A series of forming tests of the high strength steel were conducted to validate the finite element model. The characteristics of galling failure,the damage... |
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| Keywords: | galling failure temperature field normal contact pressure high strength steel |
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