基于DMAIC的汽车冲压件生产质量改善研究  

Research on Production Quality Improvement of Automotive Stamping Parts Based on DMAIC

作　　者：战惠惠 宋功成 ZHAN Huihui;SONG Gongcheng(Department of Industrial Engineering,Ma'anshan University,Ma'anshan Anhui 243000,China)

机构地区：[1]马鞍山学院工业工程系,安徽马鞍山243000

出　　处：《佳木斯大学学报(自然科学版)》2025年第1期71-74,共4页Journal of Jiamusi University:Natural Science Edition

基　　金：安徽省教育厅高校科学研究项目(2023AH052618)。

摘　　要：针对W公司汽车冲压件生产过程中合格率达不到预期的问题,采用六西格玛DMAIC方法进行改善研究。首先通过SIPOC图和帕累托图确定了造成产品生产过程中产品合格率低的最主要原因为拉延工序后产生的间隙尺寸不合格问题。接着对拉延工序进行了研究,进一步找出材料屈服强度、机床压力、机床行程等为造成间隙尺寸不稳定的关键影响因子,然后通过DOE实验设计确定了因子最优参数组合,并以此重新确定了机床运行参数和来料检验方式。通过以上改善减少了间隙尺寸不良问题,提高了拉延工序的过程能力,并最终将产品合格率由原来的96.8%提升到98.06%。In response to the problem that the production qualification rate of automotive stamping parts can't reach the expectation in W company,Six Sigma DMAIC method was used to improve the performance.Firstly,the main reason for the low product qualification rate in the production process was determined through the SIPOC diagram and Pareto diagram,which was the problem of gap size non conformity generated after the drawing process.Subsequently,the drawing process was studied,and the key influencing factors of the gap size instability were found out,such as material yield strength,machine pressure and machine stroke.Then the optimal parameter combination of the factor was determined by DOE experiment design,and the operating parameters of the machine tool and the inspection method of incoming materials were re-determined.Through the above improvement,the problem of poor gap size was reduced,and the process capacity of the drawing process was improved.The production qualification rate was finally increased from 96.8%to 98.06%.

关 键 词：DMAIC DOE 汽车冲压件 质量 

分 类 号：TG386[金属学及工艺—金属压力加工]