The Study on Suppression of Dimples in Digital Multi-Point Stretching Process

Chuan Min Zhang; Wen Zhi Fu; Xiao Da Li; Ming Zhe Li

doi:10.4028/www.scientific.net/AMR.97-101.2589

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 97-101The Study on Suppression of Dimples in Digital...

The Study on Suppression of Dimples in Digital Multi-Point Stretching Process

Abstract:

In this paper, the basic theory of multi-point stretching process was introduced, the process of multi-point stretching of saddle part was simulated, the generation and suppression of dimples were studied [1~3]. The results showed that dimple is specific defect in the multi-point stretching process; the dimples can be suppressed effectively by elastic cushion technology. Thicker elastic cushion is more effective to suppress dimples, but the error between formed workpiece and objective shape will get large. By adopting elastic cushion with appropriate thickness, workpiece with smooth surface can be obtained and the forming error is small.

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Periodical:

Advanced Materials Research (Volumes 97-101)

Pages:

2589-2593

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.97-101.2589

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Online since:

March 2010

Authors:

Chuan Min Zhang, Wen Zhi Fu, Xiao Da Li, Ming Zhe Li

Keywords:

Dimple, Elastic Cushion, Forming Technology, Multi-Point Stretching, Sheet Skin

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