Transactions of Materials and Heat Treatment

Title：New technology of forging mandrel part with spherical flange for titanium alloy plate

Authors： Chen Yan Chen Xiulin Lu Min Wang Yihua

Unit： Zhejiang Shenji Titanium Industry Co. Ltd. Shanghai Jiao Da Chukyao Forging & Stamping Co. Ltd.

KeyWords： plate forging upsetting extrusion spherical flange mandrel parts QForm V8

ClassificationCode：TG316.3

year,vol(issue):pagenumber：2020,45(6):40-44

Abstract：

In order to meet the requirements of precision forging with material saving and environmental protection, the forming process of mandrel part with spherical flange was designed and manufactured by the latest plate forging technology. First, the plate was drew into semi-finished blank, and then it was formed by upsetting and extrusion with the designed special mold. Furthermore, the scope of use for such parts and problems in their manufacturing were determined. On the basis of finite element, the upsetting-extrusion composite process was simulated by software QFormV8 to give the specification of analytical force, and the influences of research results for geometric factors and friction coefficient values on the parameters of force in the process were given. It is found that the influences of ball radius R and friction coefficient on the upsetting-extrusion force has obvious regularity. For the example, when the ball radius R is 15 mm, the friction coefficient μ is 0.1, the forming force is up to the minimum.

Funds：

陈岩（1984-），男，学士，工程师 E-mail：114694867@qq.com 通讯作者：王以华（1944-），男，学士，研究员 E-mail：yhw006@sohu.com

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