Transactions of Materials and Heat Treatment

Title：Process parameters analysis of the open-type inverted extrusion of hollow billet for six square joint of geological drilling based on Deform-3D

Authors： Feng Wenjie Shan Bin Chen Yingying Chen Wen

Unit： Chongqing University of Technology

KeyWords： geological drilling joint hollow billet open-type inverted extrusion forming force numerical simulation

ClassificationCode：TG376.1

year,vol(issue):pagenumber：2014,39(2):23-26

Abstract：

With the help of finite element analysis software Deform-3D, the open-type inverted extrusion process of hollow billet for six square joint of geological drilling was simulated. And some factors affecting the forming force and forming quality,such as the entrance half angle of convex mold, the length of boot area and ratio of section reduction were analyzed. The simulation results show that the forming force increases markedly with the increase of the entrance half angle of convex mold and the ratio of section reduction; and properly increasing in the length of boot area contributes to avoid scraping. The process test shows that the optimized parameters can effectively reduce the forming force in extruding joint, and improve the forming quality.

Funds：

重庆市教委科学技术研究资助项目（KJ090625）

冯文杰（1964-）男，硕士，教授

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