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双金属环件轧制过程中的锻透研究
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作者 张芳萍 张案案 +1 位作者 成鑫尧 王超 《锻压技术》 CAS CSCD 北大核心 2023年第6期102-107,共6页
对双金属环件轧制过程中压下量和锻透率之间的关系进行了研究,通过建立双金属环件的三维有限元模型,借助有限元分析软件ABAQUS,根据环件锻透理论计算了芯辊的最小压下量,并以此为依据对不同芯辊压下量进行数值模拟,分析了双金属环件轧... 对双金属环件轧制过程中压下量和锻透率之间的关系进行了研究,通过建立双金属环件的三维有限元模型,借助有限元分析软件ABAQUS,根据环件锻透理论计算了芯辊的最小压下量,并以此为依据对不同芯辊压下量进行数值模拟,分析了双金属环件轧制过程中塑性区的分布规律以及芯辊压下量对双金属环件锻透率的影响规律,验证了环件锻透理论可用于双金属环件轧制过程的锻透性分析。当压下率为1.0%时,双金属环件完全锻透,而经验三角形法则计算的锻透率为21%,说明经验三角形法则不能够有效地判断双金属环件轧制过程的锻透性。 展开更多
关键词 双金属环件 压下量 锻透率 理论 经验三角形法则
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Forging Penetration Efficiency of Steel H13 Stepped Shaft Radial Forging with GFM Forging Machine 被引量:6
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作者 周旭东 刘香茹 邢建斌 《Journal of Shanghai Jiaotong university(Science)》 EI 2012年第3期315-318,共4页
The numerical thermal mechanical simulation of radial forging process of steel H13 stepped shaft with GFM(Gesellschaft fur Fertigungstechnik und Maschinenbau) forging machine was carried out by three-dimensional finit... The numerical thermal mechanical simulation of radial forging process of steel H13 stepped shaft with GFM(Gesellschaft fur Fertigungstechnik und Maschinenbau) forging machine was carried out by three-dimensional finite element code DEFORM 3D.According to the effective plastic strain,the mean stress and the mean plastic strain distribution of the radial forging,the forging penetration efficiency(FPE) was studied throughout each operation.The results show that the effective plastic strain in the center of the forging is always greater than zero for the desirable larger axial drawing velocity.The mean stress in the center of the workpiece is proposed to describe hydrostatic pressure in this paper.There is compressive strain layer beneath the surface of the workpiece to be found,while there is tensile strain core in the center of the workpiece.These results could be a valuable reference for designing the similar forging operations. 展开更多
关键词 radial forging forging penetration efficiency (FPE) stepped shaft finite element
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