Research Based On The Six Sigma Methods To Improve The Auto Lights Quality Of H Company

As the development of the Auto market, the retain quantity of the cars increased, and the Auto market becomes more maturated. Auto industry is so special, the tradition quality management theory can not meet the needs of the Auto industry.H company is a joint venture corporation by China and Japan, the 2xp project is the first SUV project of H company. At the beginning of the project launch,because of the Unstable quality, especially the quality of the head light, caused big trouble of the line.Six Sigma theory begins in 1980 s, as a quality management method to reduce the quality defects, the Six Sigma becomes the most important stratege of the world’s excellent corporation. Six Sigma management gradually from a quality management method become into a highly effective improvement and optimization technology, thus forming a corporate culture. At the same time, Six Sigma protects the benefit of the customer, strengthen leadership, provide the system methods of quality improvement.This paper introduce Six Sigma management tools and methods, follow the Five steps of Define, Measure, Analyze, Improve, Control, find the main reasons step by step. Use of check sheet, cauead effect diagram, histogram, hypothesis test, DMAIC,SPC and other tools to achieve the goal of the quality of the vehicle. For the launch of the 2XP project, and the achievement of company plan, make the contribution.