高强度钢板的轿车支柱内板成形工艺研究
Research on Forming Process for Strut Inner Plating of High-strength Steel
周 杰1， 何应强1， 阳德森1 , 杨 明2
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作者单位：1.重庆大学 材料科学与工程学院，重庆 400030； 2.四川宜宾五粮液普什模具公司，四川 宜宾 644007
中文关键字：高强度钢板； 有限元数值模拟； 工艺参数优化
英文关键字：high-strength steel (HSS); FEM; process parameters optimization
中文摘要：高强度钢板在成形过程中对工艺参数比较敏感，容易出现破裂等缺陷。采用有限元数值分析技术，对某轿车高强度钢板支柱内板结构零件的拉延工序进行数值模拟分析。对影响拉延成形质量的工艺参数进行了优化，主要对零件的坯料形状、拉延筋和压边力进行优化，通过对FLD图的分析以及综合考虑生产成本等问题，得到了坯料的形状，合理的拉延筋布置和合适的压边力。最终将优化后的模拟分析结果与实际生产出来的拉延件结果进行对比，验证了数值模拟的有效性，生产出质量较好的产品。
英文摘要：The high-strength steel plate, which is more sensitive to process parameters during the forming process, can crack easily. Based on finite element technology. The drawing process for the high-strength auto structure part was optimized through numerical simulation. The process parameters, which affected forming quality, were optimized by finite element simulation. The optimization focuses on the blank shape, drawbead, and holder force. After that the blank shape, drawbeads, and holder force were determined through analyzing FLD diagram and the production cost. Finally the validation of simulation was approved by comparing the optimization of simulation with the data of experiment, and the high-quality part was produced.