CAJ | 학술논문

在汽车外覆盖件成形过程中,对于各种冲压缺陷都必须进行分析、评估.文章采用静力显示有限元算法对汽车外覆盖件的静态抗凹性能进行了数值模拟研究,分别研究了覆盖件的抗凹性能与材料、成形条件及面板曲率的关系.结果显示,高强钢能够提高覆盖件的抗凹性能,面板的抗凹性能随着面板的厚度和压边力的增大而增加,而且覆盖件曲率越小,其静态抗凹性能则越高.
재기차외복개건성형과정중,대우각충충압결함도필수진행분석、평고.문장채용정력현시유한원산법대기차외복개건적정태항요성능진행료수치모의연구,분별연구료복개건적항요성능여재료、성형조건급면판곡솔적관계.결과현시,고강강능구제고복개건적항요성능,면판적항요성능수착면판적후도화압변력적증대이증가,이차복개건곡솔월소,기정태항요성능칙월고.
All types of stamping defects now must be analyzed and evaluated in automobile panel stamping process.In this paper,the dent resistance of auto-body panel is numerically simulated by using the commercial sheet metal forming CAE code KMAS/implicit.In our investigation the relation curves between dent depth and loading values are obtained.The results showed that the utilization of high-strength steel materials greatly improves the dent resistance properties.And the dent resistance of the auto body panels increases with panel thickness and binder force.Moreover,when the panel curvature radii are smaller,the dent resistance becomes higher.