冲压回弹仿真结果的工艺知识发现技术研究  

Research on knowledge discovery on springback simulation results

作　　者：彭必友[1] 傅建[1] 肖兵[1] 殷国富[2] 

机构地区：[1]西华大学材料科学与工程学院,四川成都610039 [2]四川大学制造科学与工程学院,四川成都610065

出　　处：《锻压技术》2009年第3期33-36,共4页Forging & Stamping Technology

基　　金：国家自然科学基金资助项目(50275100);校人才引进基金(R0820103)

摘　　要：数值模拟技术已广泛应用到回弹预测研究中,但大量分析结果中存在许多隐含知识,目前还缺乏有效的方法对其进行深层次的归纳分析,从而造成了知识的浪费。本文针对铝合金U形件,结合变压边力技术对回弹量进行了大量的数值模拟实验,提出了一种基于粗糙集的工艺知识发现技术,并通过具体算例验证了方法的有效性,从大量实验数据中得到了冲压回弹的隐含知识。Numerical simulation technology has been widely applied to study in the springback forecast, much implicit knowledge in a lot of analysis results lacks an effective method to be analyzed and concluded in deeply, so a lot of knowledge is wasted. Combined with variable BHF, springback of aluminum alloy U-shaped workpiece was extensivly studied. Knowledge discovery technology based on a rough set was proposed, the validity of this method was proved through specific calculation, hidden knowledge of stamping springback was gained to form a lot of experimental data.

关 键 词：铝合金U形件 变压边力 粗糙集 知识发现 回弹 

分 类 号：TG381[金属学及工艺—金属压力加工]