Effect of Thread Helix Angle on the Axial Metal Flow of Cross Wedge Rolling Thread Shaft

Hua Jun Yan; Li Juan Wang; Yu Zhong Liu; Guo Chang Li; Jin Ping Liu; Zheng Huan Hu

doi:10.4028/www.scientific.net/AMM.440.177

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 440Effect of Thread Helix Angle on the Axial Metal...

Effect of Thread Helix Angle on the Axial Metal Flow of Cross Wedge Rolling Thread Shaft

Abstract:

When rolling thread shaft in cross wedge rolling, forming quality of thread is affected by many process parameters such as the thread helix angle, which is a special and complex parameter. However, there is few study of the effect of the thread helix angle on thread shaft forming. In this paper how thread helix angle affects axial metal flow was analyzed from the perspective of rolling force and the forming process of thread shaft was simulated with different helix angles by the deform-3D software. Through the measurement of the point coordinates, the effect of the helix angle on the axial metal flow of rolled pieces was analyzed. Finally, the conclusion was obtained that helix angle causes the asymmetry of axial metal flow with small difference values for asymmetry and the axial metal flow of rolled pieces increases as the helix angle increases. The rolling thread segment can be ensured in the middle of rolled pieces by moving the blank a suitable distance in the reverse direction of the axial flow direction.

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Periodical:

Applied Mechanics and Materials (Volume 440)

Pages:

177-181

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.440.177

Citation:

Cite this paper

Online since:

October 2013

Authors:

Hua Jun Yan*, Li Juan Wang, Yu Zhong Liu, Guo Chang Li, Jin Ping Liu, Zheng Huan Hu

Keywords:

Cross Wedge Rolling, Helix Angle, Metal Flow, Thread Shafts

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* - Corresponding Author

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