Volume 35 Issue 2
Jul.  2021
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ZHENG Zhen-hua, LIU Jin-ping, WANG Bao-yu, HU Zheng-huan. Effect of forming angle on the central quality of 21-4N valves by cross wedge rolling[J]. Chinese Journal of Engineering, 2013, 35(2): 228-233. DOI: 10.13374/j.issn1001-053x.2013.02.010
Citation: ZHENG Zhen-hua, LIU Jin-ping, WANG Bao-yu, HU Zheng-huan. Effect of forming angle on the central quality of 21-4N valves by cross wedge rolling[J]. Chinese Journal of Engineering, 2013, 35(2): 228-233. DOI: 10.13374/j.issn1001-053x.2013.02.010

Effect of forming angle on the central quality of 21-4N valves by cross wedge rolling

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  • Received Date: December 05, 2011
  • Available Online: July 16, 2021
  • Based on the mechanism of twice wedge rolling for valves, changes in stress and strain of a 21-4N valve at the center with forming angle were investigated using the finite element software DEFORM-3D. The effect of forming angle on the central quality of the rolled piece was analyzed. It is found that a larger forming angle can lead to a more reasonable distribution of both stress and strain in the center of the rolled piece, which is positive to prevent central cavities. Laboratory experiments show the same result.

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