Transactions of Materials and Heat Treatment

Title：Research on the thinning rate of dual phase steel DP590 in deep drawing based on the load drop method

Authors： Sha Xun Yang Weilong Wu Hao Chen Wei

Unit： Jiangsu University

KeyWords： dual phase steel DP590 deep drawing lubrication load drop method thinning rate

ClassificationCode：TG113.25

year,vol(issue):pagenumber：2017,42(3):144-148

Abstract：

The thinning rates of dual phase steel DP590 under different blank holder forces in deep drawing were studied by the load drop method. Then, the comparative deep drawing tests with and without lubrication condition were carried out by the BCS-50AR universal sheet metal forming machine, and the relationship curve between the forming force and the punch displacement was obtained. The results show that the lubrication at flange and die fillet of the drawing part is conducive to drawing forming, and the drawing is broken easily without lubrication. Thus, the thickness of flange of the drawing part increases, and the thickness of die fillet and the cylinder wall are reduced by a certain degree. Furthermore, on the dangerous section, the minimum thinning rate is 28.6% with rupture, and the maximum thinning rate is 19.3% without rupture, which can meet the production requirements.

Funds：

沙洵(1990-)，男，硕士研究生陈炜(1965-)，男，博士，教授

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