【作者】 薛克敏； 王广春； 吕炎； 刘海华；

【Author】 Xue Ke Min,Wang Guang Chun,Lu Yan,Lui Hai Hua Harbin Institute of Technology,Harbin,150001,China

【机构】 哈尔滨工业大学；

【摘要】 扭压变形是在变形中沿坯料高度方向施加压力的同时,沿坯科横截面方向施加扭矩,将工件与工具间接触摩擦的有害作用转变为积极的有益作用,从而减小变形力,改善工件的组织性能。本文对其变形过程进行了数值模拟和实验研究,并与镦粗变形作了比较。在有限元模拟中,采用了作者提出的分析区域选取、拟三维处理及摩擦功率的计算等方法,计算值与光塑性实验结果相吻合。更多还原

【Abstract】 Twist-compression forming is a process that a pressure is exerted along the height direotion of the workpiece,and at the same time.a twisting torque is exerted along into cross-sectoln direction during the process.It can chang the harmful effect of friction for the useful one,reduce the deformation force and improve the structure of forging.In this paper the whole process has been studied by numerical simulation and in some experimentals methods.更多还原