不同应变路径下高强度钢板料成形数值模拟分析  

Numerical simulation of high strength steel sheet metal forming in different strain paths

作　　者：齐振杰[1] 夏琴香[1] 戚春晓[1] 邱遵文 

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510640 [2]广东科龙模具有限公司,广东佛山528303

出　　处：《锻压技术》2013年第1期35-39,88,共6页Forging & Stamping Technology

基　　金：广东省高等学校高层次人才项目(x2jqN9101140);广东省教育部产学研项目(2010B090400094)

摘　　要：以某汽车安装座零件的正反拉深工序为研究对象,利用有限元数值模拟研究方法,探讨了不同应变路径对板料成形性能的影响。结果表明:应变路径的变化对冲压成形的成形质量有很大影响,通过改变冲压件成形危险处的应变路径可以提高成形质量;确定凸包高度为33mm,圆角半径为20mm的方案为安装座零件的优化成形方案,该方案能充分利用安装座零件的成形性能,实现较好的成形质量;运用有限元数值模拟技术可以很好地预测复杂形状零件成形以及多工步成形。By means of finite element numerical simulation, the forward and reverse drawing process oI me autumn soleplate component part was studied, and the properties of sheet metal forming in different strain paths conditions were discussed. The results indicate that the stamping forming quality is greatly influenced by the change of strain path and the stamping forming quality can be improved by the strain paths of forming dangerous point. Convex hull height of 33 mm, corner radius of 20 mm are determined as optimized forming plan for automotive soleplate component parts, and automotive soieplate component parts forming performance can be fully used to achieve better forming qualities in the plan. Complex shape parts forming and multi-step forming can be well predicted using the finite element numerical simulation method.

关 键 词：板料成形 应变路径 高强度钢 数值模拟 

分 类 号：TG386[金属学及工艺—金属压力加工]