CN100汽车发动机油底壳二次拉深模拟及实验研究  

Two times deep drawing simulation and experimental study of CN100 car engine oil pan

作　　者：胡建华 覃天[2] 苏广才[3] 黄晓珍 

机构地区：[1]柳州五顺汽车配件厂,广西柳州545005 [2]广西工业职业技术学院机械系,广西南宁530001 [3]广西大学材料科学与工程学院,广西南宁530004 [4]上汽通用五菱有限公司,广西柳州545007

出　　处：《锻压技术》2011年第6期154-158,共5页Forging & Stamping Technology

摘　　要：CN100汽车发动机油底壳在试模的时候会发生起皱、减薄的现象。本文利用ETA/Dynaform进行拉深模拟,在拉深结果中出现起皱、减薄部位选取节点进行应力分析,采用拉延筋、增大凸模圆角半径为原来的1.5倍的方法进行改进,消除缺陷,最后进行试模实验验证模拟结果。实验结果表明,起皱、减薄现象得到有效的缓解甚至消除。Wrinking and thinning are often met when the die of CN100 car engine pan is tested.The drawing process was simulated by ETA/Dynaform.At the wrinking and thinning position of the simulated drawing,the nodes were seleted and used for analyzing the stresses.Drawbead was used and die radius was increased to 1.5 times of the original in order to eliminate defect.Finally the simulation result was verified using experimental die.The experimental result show that the wrinkling and thinning phenomenons are effectively alleviated or even eliminated.

关 键 词：CN100油底壳 拉深 数值模拟 

分 类 号：TG386[金属学及工艺—金属压力加工]