汽车引擎盖内板冲压工艺设计及数值分析

摘要

针对复杂的汽车引擎盖内板在冲压成形中容易产生破裂缺陷的问题,利用AutoForm有限元软件对引擎盖内板进行工艺设计以及数值分析.将正交试验设计方法与冲压数值分析相结合,探讨冲压方向、压边力、拉深筋圆角半径、拉深筋深度和摩擦因数对汽车引擎盖内板冲压成形质量的影响,并利用直观分析法,确定最优工艺参数组合,最终达到理想效果.%By utilizing the finite element software to process design and numerical simulation of the automobile hood inner to solve the problem of the complex automobile hood inner is easy to produce the rupture of defects during stamping. Combining with the orthogonal experiments design method and stamping numerical simulation, to discuss the stamping direction, the depth of draw-bead, the fillet radius of drawbead,friction coefficient blank holder force within the influence of the quality of stamping forming. By using visual analysis method to determine the optimum process parameter combination and finally reach the ideal effect.