CAJ | 학술논문

基于CAE技术和试验方法分析了车用侧墙板冲压成形过程中的成形性，并在此基础上结合正交试验法研究了不同工艺参数对该侧墙板成形性能的影响．结果表明：侧墙板零件局部区域处于平面应变状态，并且存在较严重的局部减薄，这两者使侧墙板零件局部区域接近破裂状态；其中压边力对侧墙板零件减薄率的影响最为显著．通过正交试验法进行了工艺参数优化，使零件的最大减薄率明显降低，平面应变状态也得到改善，且试验与有限元分析结果相吻合．
기우CAE기술화시험방법분석료차용측장판충압성형과정중적성형성，병재차기출상결합정교시험법연구료불동공예삼수대해측장판성형성능적영향．결과표명：측장판령건국부구역처우평면응변상태，병차존재교엄중적국부감박，저량자사측장판령건국부구역접근파렬상태；기중압변력대측장판령건감박솔적영향최위현저．통과정교시험법진행료공예삼수우화，사령건적최대감박솔명현강저，평면응변상태야득도개선，차시험여유한원분석결과상문합．
The formability of an automotive sidewall plat was investigated by CAE and experiment.The effects of stamping process parameters on the formability were analyzed by orthogonal experiment.The results showed that localized plane strain state and severe thinning in the sidewall plate caused the plate close to be fracture.The blank holder force had the most significant effect on the thickness reduction of the sidewall plate.The optimization of the process parameters obtained by the orthogonal experiment effectively mitigated the plane strain state as well as the maximum thickness reduction.The experimental results were in agreement with those from finite element analysis.