Transactions of Materials and Heat Treatment

Title：Research on forming performance of pressing point incremental

Authors： Li Lihua

Unit： Qingdao Technological University

KeyWords： pressing point incremental sheet forming forming performance arc groove length technological parameter

ClassificationCode：

year,vol(issue):pagenumber：2015,40(1):51-55

Abstract：

Research on incremental forming technology of sheet metal regarded as a new type of flexible manufacturing technology has made progress considerably. But pushing along the feeding track is produced easily for sheet metal during ordinary incremental forming process with continual feeding track, which results in unnecessary deformation and affects the processing capacity and processing quality. The circular arc groove experiments were carried out to compare with forming performance between pressing point incremental forming and continual incremental forming. It is found that the length of the arc groove formed by pressing point incremental forming is 60.5 mm, which is longer than 48.9 mm formed by continual incremental forming. Furthermore, the major principal strains are 1.212 and 0.982 respectively at the fracture location. It shows that the forming performance of pressing point incremental forming is better than that of continual incremental forming. The influence of wavelength and amplitude of sine wave on forming performance were researched by changing the parameters values. The results show that pressing point incremental forming with better forming performance can reduce the forming times in multiple-stage incremental sheet forming and develop structure type of the parts.

Funds：

国家自然科学基金资助项目（51205217）；山东省高等学校科技计划项目（J10LD13）

李丽华（1978-），女，博士，讲师

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