基于Deform与Isight的六角法兰面螺栓冷镦模具设计与优化  

Design and optimization of the cold-heading die for hexagonal flange bolts based on Deform and Isight

作　　者：朱晟平 莫帅 王霄[3] ZHU Sheng-ping;MO Shuai;WANG Xiao(School of Mechanical Engineering,Tianjin Polytechnic University,Tianjin 300387;Laboratory of Tianjin Modern Electromechanical Equipment Technology,Tianjin 300387;School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013)

机构地区：[1]天津工业大学机械工程学院,天津300387 [2]天津市现代机电装备技术重点实验室,天津300387 [3]江苏大学机械工程学院,江苏镇江212013

出　　处：《机械设计》2019年第3期50-55,共6页Journal of Machine Design

基　　金：国家自然科学基金资助项目(51475330;U1733108);天津市自然科学基金资助项目(17JCQNJC04300)

摘　　要：金属塑性成形行业中产品研发阶段延续着传统模式开发手段,通过多次的试模和修模达到模具结构参数的优化,导致产品试验周期长、效率低、模具材料的制造成本高等问题。针对六角法兰面螺栓的六角头成形工艺,建立有限元模型并完成动态仿真,确定优化目标为模具磨损深度和模具最大应力,设计因素为挤压速度、顶模摩擦因数、底模摩擦因数及顶模锥角角度。通过Isight优化软件建立正交实验方案,最终得到六角法兰面螺栓冷镦模具优化结果。文中研究结果对螺栓类零件的冷镦加工及相关成形设计及结构优化具有指导意义。Currently,traditional means are applied for product development in the metal-forming industry.A number of die tests and modifications are conducted in order to optimize the structural parameters,which result in such setbacks as a long cycle of product test,low efficiency,high manufacturing cost of die materials,and so on.In this paper,the finite element model is set up for the hexagonal-head forming process for hexagonal flange bolts,and the dynamic simulation is completed.Based on the simulation results,both the wear depth and the maximum stress of the die should be optimized,the extrusion speed,top-die friction coefficient,bottom-die friction coefficient and top-die cone angle serve as the design factors.The scheme of orthogonal experiment is worked out with the aid of Isight optimization software,and the optimization results of the cold-heading die for hexagonal flange bolts are obtained.The results provide guidance for the cold heading of bolted parts as well as such tasks as forming design and structural optimization.

关 键 词：冷镦模具 六角法兰面螺栓 有限元分析 多目标优化 

分 类 号：TH164[机械工程—机械制造及自动化]