冲模技术
模具工业2017年第43卷第9期
基于稳健设计的冲压成形工艺参数
多目标优化
董娇，杨印安
(徐州工业职业技术学院机电工程学院，江苏徐州221140)
摘要：以某梁类零件为研究对象，以获得最小减薄率及增厚率为目标，结合稳健设计、均值分析和变量分析，得出各工艺参数对减薄率及增厚率的影响程度及作用趋势，最后运用综合加权评分法确定同时兼顾减萍率和增厚率的最优工艺参数组合为摩擦固数0.125.冲压速度2500mm/s.凸固模间隙1mm 板料偏置量1mm，最终优化后的零件减薄率降低了26.85%，增厚率降低了49.33%，可为冲压成形提供指导。
关键词：梁类零件；稳健设计；综合加权评分法；冲压成形；工艺参数；多目标优化
中图分类号：TG386.1
文章编号：1001-2168(2017)09-0022-06
文献标识码：B
D0I: 10.16787/j.cnki.10012168.dmi.2017.09.005
Multi-objectiveoptimizationofstampingformingprocess
parameterbased onrobustdesign
DONG Jiao, YANG Yin-an
(School of Mechatronie Engineering, Xuzhou College of Industrial Technology, Xuzhou
Jiangsu 221140, China)
Abstract: Taking a beam-type part as the research object, the influence and the tendency of various process parameters of the thickening rate of it and thinning rate were obtained. It was obtained by taking the minimum thinning rate and thickening rate as the goal, and combining with robust design, the ANOM and the ANOVA. Finally, by using the comprehen-sive weighted scoring method the optimized combination of the process parameters was ob-tained with the friction coefficient of 0.125, the stamping velocity 2 500 mm/s, the die clear ance 1 mm and the sheet metal offset 1 mm. At last the optimized parts thinning rate re-duced by 26.85%, and the thickening rate reduced by 49.33%, which could provide guidance for stamping forming
Key words: beam-type parts; robust design; comprehensive weighted scoring method; stamp-ing forming; process parameters; multi-objective optimization
0引言
金属零件在冲压成形过程中会产生各种成形缺陷，冲压成形前通过对零件进行有限元模拟可以预测零件可能出现的成形缺陷，并在设计中进行改善，减少模具制造中的问题，缩短模具开发周期，降
收稿日期：2017-05-08
作者简介：董娇(1985-)，女(汉族)，江苏徐州人，讲师，主要研究方向：模具设计与制造
万方数据
低开发成本，提高企业市场竞争力(12)。
现利用Dynaform软件，对某梁类零件进行拉深成形模拟分析，为降低零件的减薄率、增厚率，提高试模成功率提供理论依据。应用稳健设计，结合均值分析法（ANOM)、变量分析法（ANOVA），获得各工艺参数对该梁类零件减薄率及增厚率的影响程度；运用综合加权评分法实现多目标优化，最终获得合格的零件，满足生产要求。