Transactions of Materials and Heat Treatment

Title：Experimental and numerical research on incremental sheet forming

Authors： LIU Chun-da1 ZHANG Xu2 LIU Jian1 HU Jian-biao2 TAN Yi2

Unit： 1. Process and Technology Department Chongqing Changan Automobile Company Limited Chongqing 401120 China 2. College of Material Science and Engineering Chongqing University Chongqing 400044 China

KeyWords： incremental sheet forming numerical simulation process parameters formability

ClassificationCode：TG547

year,vol(issue):pagenumber：2012,37(5):35-39

Abstract：

In order to find a method to reduce excessive sheet thinning of parts by incremental sheet forming,taking typical conical part as an example, an elastic-plastic finite element model was developed using ABAQUS, then the influences of some relevant process parameters were discussed, such as half-apex angle (α), tool diameter (D) and step increment (ΔZ). The results show that half-apex angle is the dominating process parameter to impact the formability of material, as the half-apex angle increases, the smallest thickness of part increases and the deformation of sheet is more uniform. Small step size and big tool diameter have a good influence on strain distribution and surface quality; as the tool diameter，step size and half\|apex angle decrease，the axial forming force is smaller. The simulation results are in good agreement with experimental results.

Funds：

国家自然科学基金资助项目（51005258）

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