Transactions of Materials and Heat Treatment

Title：FE analysis on effect of tool head size on multi-point composite incremental forming of plate

Authors： Cai Gaipin Zhou Xiaolei Xiong Yang

Unit： Jiangxi University of Science and Technology

KeyWords： multi-point forming incremental forming tool head finite element

ClassificationCode：TG386

year,vol(issue):pagenumber：2015,40(5):11-14

Abstract：

Multi-point composite incremental forming (MPCIF) has advantages of uniform deformation, high formability, high forming efficiency, effective inhibition on instability, and so on. Based on 3D finite element analysis model of MPCIF, the MPCIF process of the typical truncated pyramid-shaped work-pieces made by different size tools was simulated and analyzed, and the influences of different size tools on equivalent plastic strain, forming precision and thickness reduction ratio of deformed parts were studied. The comparative analysis of simulation results show that the smaller is tool head size, the more serious is the thickness thinning of plates that are prone to cracking easily. In contrast, the bigger is the tool head size, the more uniform is the wall thickness, and the better is the shape accuracy, however, the equivalent plastic strain is higher in flange area that is prone to producing wrinkles easily.

Funds：

国家自然科学基金资助项目（50975131）；江西省自然科学基金资助项目（20132BAB206013）

蔡改贫（1964-），男，博士，教授周小磊(1987-)，男，硕士研究生

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