作　　者： ; ; ;

机构地区： 浙江衢州职业技术学院

出　　处： 《锻压技术》 2011年第5期121-123,共3页

摘　　要： 在分析止推轴承毛坯结构特点的基础上,借助于数值模拟技术,研究了止推轴承温挤压成形过程中金属流动特点。模拟结果表明:成形过程中,金属流动顺利,成形3个凸台部位的金属充型效果好,无成形缺陷产生。结合数值模拟结果,制定了成形方案及工艺路线。确定了成形止推轴承毛坯件的坯料规格为:Ф86mm×Ф26.2mm×46mm。设计了成形模具,采用了带心轴的凸模结构,凸模心轴尺寸为Ф26mm×50mm;凹模采用有利于凸台成形和退料的组合结构。退料板结构设计简单、操作便捷。 On the basis of analyzing the structure features of thrust bearing,using the method of numerical simulation,the metal flowing characteristics were researched during the thrust bearing forming by warm extrusion.The simulation results show that the metal flow smoothly without any forming defects and the metal filling station of the three convex parts is good.Taking into account of numerical simulation results,the route of warm extrusion process was determined and the billet structure size is Ф86 mm×Ф26.2 mm×46 mm.The forming die was designed.Using a punch with a spindle structure,the punch mandrel size is Ф26 mm×50 mm.The composite structure of the die is propitious to form three convex plates and disengage the part from the top die.The structure of the stripper plate is designed to be operated easily.

关 键 词： 止推轴承 数值模拟 温挤压 模具设计

领　　域： [金属学及工艺]