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Abstract：
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How to measure the frictional coefficient between sheet blank and die quantificationally by experiments is still a problem for the research work on sheet metal forming.After analyzing the deformation behaviors of sheet blank during sheet metal forming process,a new tribotest method was put forward to measure the frictional coefficient in die corner zones and the corresponding tribotest device was designed and produced.The deformation behaviors of circumferential shrinking and thickening were taken into account during sheet metal forming process in the design of device and the developed tribotest device could be used to measure dynamically the frictional coefficient in die corner zones under both room temperature and heated conditions.The tribotest results indicate that the developed tribotest device not only is of high sensitivity,repetitiveness and convenience,but also supplies experimental approach and device to further research on the law of the frictional coefficient varying with the technological parameter in sheet metal forming.
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Funds：
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国家重点实验室开放课题(04-12004·7-2006·6)
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AuthorIntro：
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Reference：
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[1]胡世光.板料冷压成形原理[M].北京:国防工业出版社.1979.
[2]郭正华,李志刚,黄重九,等.铝合金板温成形过程摩擦在线检测系统的研究[J].锻压技术,2004,29(2):12-15.
[3]Nine H D.Drawbead force in sheet metal forming[A].Pro-ceedings of A Symposium on Mechanics of Sheet Metal Form-ing:Behavior and Deformation Analysis[C].Warren,Michi-gan:Planum Press,1978.179-211.
[4]Wang X J,Wagoner R H.A Realistic friction test in sheetforming.In:Advanced Technology of Plasticity 1993[M].Wang Z R,He X(Eds).International Academic Publishers,1993.1495-1500.
[5]Wang W,Wagoner R H,Wang X J.A realistic friction testfor sheet forming operations[J].SAE Trans.of Materials&Manufacturing,1993,930807:915-922.
[6]郭正华,李志刚,黄重九,等.润滑条件下铝合金板成形模拟中摩擦模型的研究[J].中国机械工程,2004,15(15):1388-1391.
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