Journal of South China University of Technology (Natural Science Edition) ›› 2007, Vol. 35 ›› Issue (8): 1-6.

• Mechanical Engineering •     Next Articles

Numerical Simulation of Influence of Roller W orking Surface on Spin-Forming of Rectangular Inner Meshing Gear

Xia Qin-xiang  Hu Yu  Sun Ling-yan  Ye Bang-yan   

  1. School of Mechanical Engineering , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China
  • Received:2006-12-20 Online:2007-08-25 Published:2007-08-25
  • Contact: 夏琴香(1964-)，女，博士，教授，主要从事塑性加工与模具计算机技术方面的研究. E-mail:meqxxia@scut. edu. cn
  • About author:夏琴香(1964-)，女，博士，教授，主要从事塑性加工与模具计算机技术方面的研究.
  • Supported by:

    国家自然科学基金项目资助(50475097) ;广东省自然科学基金面上重点项目(04105943) ;广东省科技计划项目(2006B11901001 )

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Abstract:

In order to optimize the equipment for spin-forming and to lay a foundation for the selection of roller working surface and forming parameters , the traditional roller working surface of tubular-shaped workpiece and the characteristics of the spin-forming for cup-shaped thin-walled inner gear are analyzed , and a 3D finite element elastoplastic model is established by using the MSC. Marc software. Then , numerical simulations of the gear spin-forming under different working surfaces are carried out. Moreover , the influence of working surface on the formability of inner gear spinning is investigated. The results indicate that , for the step-type roller, large roundness radius and small forming angle contribute to the spinning of inner gear , and that the quality of spun workpiece is at its best when the circular-type roller is used.

Key words: spin-forming, rectangular inner meshing gear, roller, working surface, numerical simulation