Transactions of Materials and Heat Treatment

Title：Orthogonal test analysis of dynamic friction coefficientsin stretch forming process

Authors： LEI Jun-xiang~1 KANG Yong-lin~2 WANG Zhi-bin~3(1.University of Shanghai for Science and Technology 2.University of Science and Technology Beijing 3.Taiyuan Iron and Steel Group Company)

Unit：

KeyWords： Stretch forming Friction coefficient Orthogonal text

ClassificationCode：TG386

year,vol(issue):pagenumber：2004,29(5):70-73

Abstract：

Friction coefficients in stretch forming process have been measured by orthogonal test method in this paper. ANOVA results indicate that the lubricant effect on friction coefficients is significant. The variation of friction coefficients is increased along with punch stroke increment. And both are linear basically. The friction coefficients on punch profile radius are larger than the friction coefficients on die profile radius. The reason is the sheet metal deformation and the sheet metal surface roughness on punch profile radius are larger.

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Reference：

1　LeiJunxiang,KangYonglinPredictionandcontrolofbothwrinkleandfracturelimitsoncylindricalcupmulti deep drawing.ChineseJournalofMechanicalEngineering,1999,12(4):288～296
2　康永林,孙英,王先进用新型摩擦装置测定薄板成形摩擦系数的研究.机械工程学报,1996,32(5):106
3　LeiJunxiang,KangYonglin,QuFengqin.Predictionanddetermina tionofbothfrictioncoefficientandformingforceonsheetmetaldeep drawing,JournalofUniversityofScienceandTechnologyBeijing,2002,9(5):360～362
4　高允彦正交及回归试验设计方法北京:冶金工业出版社,1988

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