Application of Lean Six Sigma Processes for the Quality Improvement of Automotive Repair

• Main Authors: Feng-Lien Chuang, 莊豐聯
• Other Authors: Jhy-Ping Jhang
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/67431095007800691604

碩士 === 華梵大學 === 工業工程與經營資訊學系碩士班 === 102 === So far, the development of Lean Six Sigma (LSS), the aspect of quality improvement is significant, and thus LSS would be paid attention for the quality control community to become a new thinking of management strategies. Through the improvement of LSS tools, the customer satisfaction is improved as well as reached the goals and vision of business operations. An automobile company is selected as the exemplified case using the improvement techniques of Lean Six Sigma process to investigate the differences of quality improvement and effectiveness after conducting LSS. Actually, the repairing yield would increase the customers’ satisfactions because the maintenance quality is the most concern of customers. The LSS DMAIC (Define Measure Analyze Improve Control) process and SIPOC, force field diagram, Pareto chart, value stream Mapping methods is adopted in this study to find out step-by-step the main problem in the BR-P braking system, and then to analyze the causes and to find the optimal strategy to establish the standard operating guide and weekly technical report. The results reveals that none one-time repaired rate is decreasing from 6.7% to 3.0%, and the loss amount reduces from NT$ 587,182 to 122,151. They show that the application of LSS could improve the maintenance quality significantly and it could reduce the times of maintenance and the cost down to achieve its financial goals. Keywords: Lean Six Sigma, maintenance quality, DMAIC, fix it right the first time