G系列叉车发动机机罩冲压成形工艺参数优化  

Optimization of stamping parameters for G series forklift engine hood

作　　者：朱梅云[1] 傅建[2] 崔礼春[1] 

机构地区：[1]安徽江淮汽车股份有限公司技术中心,安徽合肥230601 [2]西华大学材料科学与工程学院,四川成都610039

出　　处：《锻压技术》2014年第9期27-30,共4页Forging & Stamping Technology

基　　金：国家科技重大专项(2010ZX04004-112-4);安徽省科技厅基金资助项目(11010201020)

摘　　要：利用UG软件建立G系列发动机机罩的三维模型,然后导入eta/DYNAFOR软件对其冲压成形过程进行数值模拟。通过调节板料成形过程中压边力、拉深筋高度、冲压速度和模具间隙参数等主要工艺参数得到不同的模拟结果,采用正交实验法对模拟结果进行比较和分析,获得最优工艺参数组合:压边力4430 kN、拉深筋高度8 mm、冲压速度3000 mm·s-1、凸凹模间隙1.575 mm。根据最优工艺参数进行冲压成形工艺试验,得到表面质量合格的发动机机罩冲压件。检验结果表明,最优参数组合可以有效解决实际生产制造过程中起皱、破裂和未充分拉深等冲压质量问题。The three - dimensional model of G series forklift engine hood was founded by UG software, and then this model was imported to the eta/Dynaform software to simulate the stamping process. The simulation results were obtained from different technological parameters such as blank holder force （ BHF）, drawbead height, punch speed and die clearance. The technological parameters were optimized by the orthogonal experimental results. The optimal technological parameters were BHF 4430 kN, drawbead height 8 mm, punch speed 3000 mm · s^- 1 and die clearance 1. 575 mm. The qualified engine hood parts were obtained by forming experiment according to the optimal technological parameters above. Test results show that the optimal parameters effectively solve the problems of drawing such as wrinkling, crack and inadequate stretch areas in the forming process.

关 键 词：发动机机罩 冲压工艺参数 数值模拟 正交实验 

分 类 号：TG386[金属学及工艺—金属压力加工]