Transactions of Materials and Heat Treatment

Title：Determination on pressing tool posture in the five-axis CNC incremental forming

Authors： Han Fuchen Zhu Hu

Unit： Shenyang Aerospace University

KeyWords： sheet forming CNC incremental forming pressing tool posture triangular facet cutter location points

ClassificationCode：TG335.5

year,vol(issue):pagenumber：2017,42(11):84-88

Abstract：

In the five-axis CNC incremental forming based on STL model, in order to avoid the postural mutation of pressing tool at the edges of triangular facets, a method for determining the postures of pressing tool was proposed. Firstly, according to the position relationship between the center points of pressing tool head and the triangular facet, the center points of pressing tool head were classified into three types that were located on the vertex of triangular facet, the edges of triangular facet and the inside of triangular facet; and then the normal vector of different types of tool head center points were calculated by the algorithms with the different distance weighting algorithm respectively. Finally, the pressing tool postures were determined according to the normal vector of the tool head center points and the leading angles and inclining angles between the pressing tool axis and the normal rector of the tool head center points. The system of algorithm was implemented by VC ++ and OpenGL. The results show that the pressing tool postures are changed gently without postural mutation of the pressing tool at the boundary of triangular facet, and the operation of software is stable and reliable.

Funds：

国家自然科学基金资助项目(51175351)

作者简介：韩福辰(1988-)，男，硕士研究生 E-mail：Hanfuchen@qq.com 通讯作者: 朱虎(1964-)，男，博士，教授 E-mail：zhuhu10@163.com

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