作　　者： ; ; (曹森龙）;

机构地区： 浙江科技学院机械与汽车工程学院

出　　处： 《机械设计与制造》 2014年第1期238-240,244,共4页

摘　　要： 汽车悬架系统需要能承受来自路面反复冲击载荷,为了制造出符合设计目标的汽车悬架三角臂零件,选择合理的工艺路线实现零件成形,应用板料成形模拟软件Dynaform对QStE500TM材料的三角臂零件成形工艺进行动态数值模拟与计算,在模具制造前预估冲压成形过程中坯料厚度及应力等变化。后处理分析结果表明冲压成形结束后没有拉裂痕迹,整体材料变形处于可行区域,但局部边界有起皱风险,翻边局部区域厚度有明显变化,主应变、次应变、边界材料流动及应变矢量均处于合理范围;也验证了零件冲压成形工艺路线的可行性,对零件结构优化和加工制造提供了参考依据。 To meet the strength requirement of reciprocating impact from road, the automotive suspension arm parts need to be evaluated the change of thickness, stress and other changes in the process of stamping form before the mold manufacturing. The Dynaform software is used to simulate the sheet metal forming system that can realize the dynamic simulation and numerical analysis of stamping form process for the triangular arm with QStE500TM material. The postprocessar of its results show that the tension crack in the feasible region can effectively avoid occurred during the overall material deformation. The numerical results prove that the risk of folding occurred on the boundary in the parts obvious changes in the thickness of the local area, major strain, minor strain, boundary＂ material flow and stress-strain vector are in a reasonable range. The simulation data also indicates that the starnping process routes are feasible in order to provide reference for optimization design structure and manufacturing technique of triangle arm.

关 键 词： 三角臂 冲压成形 数值模拟

领　　域： [机械工程] [金属学及工艺]