基于DMAIC的方法在车身侧翼板改进中的应用研究  

Application Study of the Improvement of Vehicle Body Side Fender Based on DMAIC

作　　者：曾煜 杜南瑛 ZENG Yu;DU Nanying(Luzhou vocational&technical college,Luzhou,Sichuan 646000,China;Changan Ford Automobile Co.,Ltd.,Chongqing 400023,China)

机构地区：[1]泸州职业技术学院,四川泸州646000 [2]长安福特汽车有限公司,重庆400023

出　　处：《汽车零部件》2023年第11期71-81,共11页Automobile Parts

基　　金：智能制造泸州市重点实验室2022年应用研究一般项目“基于DMAIC方法的Q235钢结构CO_(2)气体保护焊参数研究”(ZZ202203)。

摘　　要：我国汽车产量由高速增长进入平稳增长阶段,汽车制造行业进入结构升级和可持续发展的阶段,汽车质量变得尤为重要,六西格玛管理理论对质量改进具有重要意义。针对某车型汽车在试生产阶段出现的车身发动机罩与侧翼板段差问题,结合六西格玛管理理论,通过使用DMAIC(define、measure、analyze、improve、control)方法和Minitab软件进行数据统计分析,采用鱼骨图、假设检验等工具分析关键因子,采取相应改进方式,降低段差问题PPM(parts per million),改进产品生产制造过程,从而提高汽车质量水平,在实际的改进中研究六西格玛管理应用。The amount of automobile production has entered a stage of steady growth from rapid growth,and the automobile manufacturing industry has entered a stage of structural upgrading and sustainable development.Automobile quality has become particularly important.Six Sigma management theory is great significance to quality improvement.Aiming at the problem of the flush difference between the engine hood and the left side fender in the trial production,combined with the Six Sigma management theory,use DMAIC method and Minitab software for statistical analysis of data,using causeeffect diagrams,hypothesis testing and other tools to analyze the key factors,and select corresponding improvement method,reduce the PPM of the flush problems,improve the product manufacturing process,thereby improving the quality of the car,and study the application of Six Sigma management in the actual improvement.

关 键 词：DMAIC 段差 质量改进 六西格玛 

分 类 号：TH16[机械工程—机械制造及自动化]