CAJ | 학술논문

从防撞梁几何和成形特点分析入手，采用有限元分析方法对高强钢的车门防撞梁进行了冷冲压拉深成形研究。分析了高分子薄膜润滑剂对车门防撞梁拉深成形时的成形破裂的影响，并进一步探讨了薄膜润滑拉伸工艺。结果表明：高分子薄膜对于板料拉深极限的提高有一定效果；坯料与凹模间摩擦因数对高强钢成形影响较大；高分子薄膜塑性变形区与高强钢防撞梁的主要变形区一致，且整个变形过程无润滑失效。
종방당량궤하화성형특점분석입수，채용유한원분석방법대고강강적차문방당량진행료랭충압랍심성형연구。분석료고분자박막윤활제대차문방당량랍심성형시적성형파렬적영향，병진일보탐토료박막윤활랍신공예。결과표명：고분자박막대우판료랍심겁한적제고유일정효과；배료여요모간마찰인수대고강강성형영향교대；고분자박막소성변형구여고강강방당량적주요변형구일치，차정개변형과정무윤활실효。
According to the geometric and forming characteristics of anti-collision beam,the finite el-ement method was used to study the stretch forming with cold punching of door beam made by high strength steel. The influence of polymer film lubricant on the fracture formed during stretch forming of door beam was analyzed and the drawing process of film lubrication was further discussed. Polymer film has certain effect to the improvement of sheet drawing limitation,and the friction between the blank and the die factor have great effect on high-strength steel forming,and the plastic deformation zone is the same as the main deformation zone of high-strength steel anticollision beam,and there is no lubrication failure during the whole deformation process.