关键词: PFMEA；面差匹配；尾门；六西格玛

Abstract: With the rapid development of the automobile industry, customers not only have requirements for automobile performance, but also on the sensory quality of the automobile, especially the size matching of the door cover. The matching state of the four doors and two covers of the car will directly affect the customer's first perception of the vehicle and the recognition and satisfaction of the vehicle.By using the method of PFMEA process analysis of a vehicle tail gate and side face poor matching poor around this potential failure mode is analyzed, by referencing the new technology, new process, increase the limit, to reduce the dimension chain, improve the detection rate and reduce the tail gate and side surface around the failure of big difference frequency, make the tail gate and side face around poor matching problem will be brought under effective control, product quality obtained the very good security.

Key words: MENG Fangang, SUN Qucheng, XU Guifeng, XU Jian, YU Yujie