基于六西格玛的E公司汽车排气系统质量控制研究

发布时间：2018-04-17 19:02

本文选题：六西格玛 + 汽车排气系统　；参考：《东华大学》2017年硕士论文

【摘要】：中国已经连续数年蝉联世界第一大汽车生产国和消费国,但全球汽车生产和消费最强的国家并不是我们。与国际先进水平相比,我们国家汽车行业的整体质量水平差距仍然较大。面对竞争压力和经济变化的日趋增大,提升产品质量,降低成本,缩短周期成为了企业当前急需改善的方向。而六西格玛作为创新的管理模式自然成为了各企业的首选。六西格码主要通过系统地、集成地采用业务改进流程,实现过程设计的无缺陷,针对现有的过程,则实施DMAIC流程,即由定义、测量、分析、改进和控制五个阶段构成的过程改进方法,规划项目资源,提升企业竞争力,增强客户满意度。E公司成立于1865年,总部设在德国内卡河畔的埃斯林根市,在排气技术方面E公司是全球三大供应链之一。集团拥有约67个生产基地,分布于27个国家,覆盖全部重要市场。但是e公司进入中国市场却比同行业竞争对手晚的多,2011年,e公司全资子公司e排气技术上海有限公司正式成立。2013年4月21日,该子公司作为国际汽车零配件供应链在上海开始生产排气系统产品。但是生产过程中随着产量的爬坡,质量监控出现漏洞,客户抱怨不时发生;同时,为了本土化和降低采购成本,很多分供方都是亚洲区自行评估选择和开发,整个供应链系统管理不够完善。尤其,量产一年来,供应链的供货质量问题比较多,整体情况不太理想。本研究从e公司面临的质量问题现状出发,引进六西格玛质量控制方法,用于解决e公司过程质量不稳定及供应链质量管理不完善的困难。首先通过收集分析e公司主要客户需求,确定客户关注的关键技术指标项目与要求。其次对e公司的sap、cdb、intranet等信息系统记录收集的客户抱怨,供应商抱怨,以及全球各工厂发布的经验分享数据,进行统计归纳,借助minitab软件,运用排列图、直方图、鱼刺图及因果图等方法相结合,对e公司排气系统质量主要问题及关键影响因素进行提炼。通过统计E公司内部质量绩效指标提升以及客户抱怨数量下降,对六西格玛在本公司实施后的效果验证,从而能够为E公司在寻找其质量竞争力短期内在中国汽车排气技术领域获得稳健提升方法的过程中提供有价值的帮助;同时给出成功实施六西格玛的关键步骤,流程的确定,工具的选择,全员的参与架构等,也为未来新进中国的外资企业如何短期内提升自身的质量水平及综合竞争力提供切实的参考价值和清晰的实践路线方法。
[Abstract]:China has been the world's largest auto producer and consumer for several consecutive years, but we are not the world's strongest car producer and consumer.Compared with the international advanced level, our country automobile industry overall quality level disparity is still big.In the face of the increasing competition pressure and economic change, improving the product quality, reducing the cost and shortening the cycle has become the direction that enterprises urgently need to improve.Six Sigma as an innovative management model has naturally become the first choice for enterprises.Six Sigma codes are designed without defects by adopting the business improvement process systematically and integrally. For the existing process, the DMAIC process is implemented, that is, the process is defined, measured and analyzed.Improve and control the five-stage process improvement method, plan project resources, enhance enterprise competitiveness, enhance customer satisfaction. E Company was founded in 1865, headquartered in Eislingen, Germany, on the Neka River,In exhaust technology, E is one of the three largest supply chains in the world.The group has about 67 production bases in 27 countries, covering all important markets.However, company e entered the Chinese market much later than its competitors in the same industry. In 2011, a wholly owned subsidiary of the company, E exhaust Technology Shanghai Co., Ltd., was formally established. On April 21, 2013,The subsidiary as an international automotive parts supply chain in Shanghai began to produce exhaust system products.However, in the process of production, with the increase in production volume, there are loopholes in quality control, and customer complaints occur from time to time. At the same time, in order to localize and reduce procurement costs, many sub-suppliers are self-evaluating and developing in Asia.The whole supply chain system management is not perfect.In particular, a year of mass production, supply chain supply quality problems, the overall situation is not ideal.Based on the current situation of quality problems faced by E Company, six Sigma quality control method is introduced to solve the problems of process quality instability and supply chain quality management in e Company.Firstly, by collecting and analyzing the main customer demand of e Company, the key technical target items and requirements of customer concern are determined.Secondly, we record customer complaints, supplier complaints, and experience sharing data published by factories around the world in the information systems such as sapcdbintranet of e Company, and make statistical analysis. With the help of minitab software, we use the arrangement diagram, histogram, etc.The main quality problems and key influencing factors of exhaust system in e Company are refined by combining fishburr diagram and causality diagram.Through the statistics of the improvement of internal quality performance indicators and the decrease of customer complaints, the effect of six Sigma after the implementation of the company is verified.Therefore, it can provide valuable help for E Company in the process of obtaining a robust upgrading method in the field of automobile exhaust technology in China in the short term in the search for its quality competitiveness. At the same time, it also gives the key steps of successful implementation of six Sigma and the determination of the process.The choice of tools and the participation structure of the whole staff also provide practical reference value and clear practical method for the new foreign enterprises in the future how to improve their quality level and comprehensive competitiveness in the short term.
【学位授予单位】：东华大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U464.134.4

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