基于数值模拟的助力器壳体多工步成形分析
Study on Multi-stage Forming of Booster Front Case Based on Numerical Simulation
赵 军1， 易际明1， 李志红1， 林余斌2
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作者单位：（1.厦门理工学院 机械工程系，福建 厦门361024; 2.厦门松下电子信息有限公司开发中心，福建 厦门361006）
中文关键字：冲压； 多工步； 数值模拟； 模具设计
英文关键字：stamping; multi-stage forming; numerical simulation; die design
中文摘要：以在成形过程中零件不出现破裂、材料变薄率最小为优化原则，对影响成形质量的因素：坯料尺寸、模具间隙、入模圆角、各工序之间的拉深深度、压边圈的形式等进行了全面分析，制定了落料、拉深、冲孔?邛再拉深、压方?邛冲孔、翻边?邛压筋、整形的多工步成形工艺方案。实际生产零件与模拟的结果对比分析表明, 数值模拟结果与实际生产基本相符。
英文摘要：Based on the optimization principles, which were that the parts were not be broken in the whole forming process and the material thinning rate was minimal, the factors which affect the forming quality, such as blank size, die clearance, punch round, the depth of drawing and the shape of binder, were analyzed. The forming processes of firstly blanking, drawing and punching, secondly drawing again and square cut, and then punching and rolling, finally pressing rib and shaping were defined. By comparing the actual production part with the simulation results, it can conclude that the numerical simulation results fit with the actual production.