基于正交试验的波形片冲裁工艺参数优化  

Optimization on blanking process parameters for cushion segment based on orthogonal experiment

作　　者：穆瑞[1] 朱晓红[1] 王晓莉[1] 

机构地区：[1]连云港职业技术学院机电工程学院,江苏连云港222006

出　　处：《锻压技术》2016年第8期159-162,共4页Forging & Stamping Technology

基　　金：连云港市中小企业技术创新项目(CK1411)

摘　　要：以波形片为研究对象,利用Deform-3D有限元软件对冲裁凸模的磨损进行数值模拟,分析了冲裁凸模的磨损过程,模拟结果表明:随着冲裁过程的进行,凸模的磨损由端面磨损向侧壁磨损转变。此外,利用正交试验对波形片冲裁的工艺参数进行优化,通过正交试验的方差分析得出冲裁间隙对波形片冲裁凸模磨损的影响比较显著,并通过极差分析得出工艺参数对波形片冲裁凸模磨损影响的主次关系依次为:冲裁间隙、凸模刃口圆角半径、冲压速度,并且得出优化后的冲裁工艺参数,即冲裁间隙为12%t(t为板料的厚度),凸模的刃口圆角半径为0.02 mm,冲压速度为5 mm·s^(-1)。冲裁凸模的最大磨损量由优化前的2.84×10-6mm减小为优化后的2.68×10-6mm,从而较好地指导企业的生产。For cushion segment,the blanking punch wear was numerically simulated by finite element software Deform- 3D,and its wear process was analyzed. The simulation results show that the wear form of punch changes from the end surface to the side wall during the blanking process. In addition,the technological parameters of cushion segment were optimized by orthogonal experiment,and the significant influence of blanking clearance on the punch wear was obtained by variable analysis. Furthermore,the sequence of influencing factors is die clearance,fillet radius of punch and stamping speed respectively by range analysis,and the optimized technological parameters are obtained as blanking clearance 12% of the thickness of sheet metal,fillet radius of punch 0. 02 mm and stamping speed 5 mm·s-1respectively. Thus,the maximum wear depth of punch is reduced from 2. 84 × 10- 6mm to 2. 68 × 10- 6mm,and it is a good guidance for practical production in enterprises.

关 键 词：波形片 冲裁 凸模 磨损 毛刺 冲裁间隙 

分 类 号：TG386[金属学及工艺—金属压力加工]