Transactions of Materials and Heat Treatment

Title：Influence of forming sequence on forming quality in positive and negative compound CNC incremental forming

Authors： Zhu Hu Zhang Xindi Kang Jaegwan Bai Jinlan

Unit： Shenyang Aerospace University Kyungnam University

KeyWords： sheet metal forming CNC incremental forming forming sequence forming quality complex sheet parts contour deviation

ClassificationCode：TG335.5

year,vol(issue):pagenumber：2016,41(9):46-51

Abstract：

In the CNC incremental forming, the complex sheet parts with features on both two sides of the

clamping surface cannot be formed only by the positive forming or negative forming. A compound

forming method based on combination of positive forming and negative forming was proposed, and

three kinds of compound incremental forming sequences such as negative-positive forming,

positive-negative forming and positive and negative parallel forming were given.

Simultaneously, the influence of the above three forming sequences on the forming quality was

contrastively analyzed by numerical simulation and forming experiment. The research results

show that the forming effects of positive-negative forming and positive and negative parallel

forming are better than that of the negative-positive forming, and the forming quality and

forming efficiency of positive-negative forming are the best among those forming methods.

Funds：

国家自然科学基金资助项目(51175351)；辽宁省自然科学基金资助项目(2014024011)

朱虎(1964-)，男，博士，教授

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