Improvement of Die-Roll Quality in Compound Fine-Blanking Forming Process

Abstract:

Nowadays, the compound fine-blanking forming process is one of the most important processes to produce complicate multifunctional parts without subsequent machining. However, the big die-roll occurs in the sharp area is a common problem in this process. In this paper, the method with negative punch-die clearance was proposed to solve this problem by comparing three feasible plans. In addition, the influence on the process with different value of the negative punch-die clearance was studied by the finite element method (FEM). The results of this study verified that the process with suitable value of the negative punch-die clearance can result in significant decrease of the die-roll size. The relationship between the material flow near the region of die-roll and the punch-die clearance was also clarified.

• Periodical: Advanced Materials Research (Volume 337)
• Pages: 236-241
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.337.236
• Online since: September 2011
• Authors: Xin Hua Huang, Hua Xiang, Xin Cun Zhuang, Zhen Zhao
• Keywords: Die-Roll, Fine Blanking, Finite Element Method (FEM), Negative Clearance

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