Transactions of Materials and Heat Treatment

Title：Numerical simulation and experimental measurement method of contact stress distribution between blank-holder and die during sheet metal forming

Authors： SUN Cheng-zhi LUO Si-dong WANG Dong-chuan KE Feng DU Han-bin(Automotive Engineering Academy of Shanghai Automotive Industry Corporation Shanghai 200437 China)

Unit：

KeyWords： sheet metal forming blank-holder elastic deformation contact stress

ClassificationCode：TG386.32

year,vol(issue):pagenumber：2005,30(6):18-21

Abstract：

In this paper,the effect of the structure of blank-holder on the distribution of blank-holder stress during sheet metal forming has been investigated by numerical simulation and experimental measurement method.The embedded measurement system of contact stresses is established.The results indicate that the contact stresses depends on the structure of blank-holder and the different distribution of contact stresses around the blank-holder can be obtained by reasonably designed blank-holder and the formability of stamped part can be improved.

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Reference：

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