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Strategic Study of CAE >> 2009, Volume 11, Issue 2

Improving buckling critical stress of sheet with the elasti cpressure on the surfaces of sheet and it ’ s application

College of Mechanical Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China

Funding project:江苏省高校自然科学研究计划项目(04KJB460165) ;扬州市-扬州大学科研合作基金项目( YZ2006054-4) Received: 2008-06-23 Available online: 2009-02-06 09:24:28.000

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Abstract

A result was discovered by analyzing the stability of rectan gular sheet compressed by the pressure. When the sheet metal is supported by the elastic pressing forces putting on the upper and lower surfaces of sheet in stamping, the sheet stability can be improved and the wrinkling of the sheet metal formed in forming process can be reduced. Based on the result, a novel stamping die was developed. The die can be reconfigured quickly and can suppress the wrinkling of sheet.

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