การลดข้อบกพร่องในกระบวนการเชื่อมโครงเบาะรถยนต์

Abstract

Abstract

This research is applying quality tools for analyzing and solving problems. By starting with the first step of defining the problem, which is to examined the current state of the plant as a case study. It was founded that there was a failure in the welding process of the seat frame and it created many defects. Therefore this research looks into reducing failure in seat frame welding of Frame Cush LH work piece. The objective is to reduce defect to be below 1500 PPM, after that it is the measure of the manufacturing process for the current problem to determine the amount of defects and failures, and compared to the expected results. It’s also included the study of Measurement System Analysis of employees whether they have sufficient ability to analyze or not.  Then the next process is to analyze and finding the root cause of the problem by analysis from team of experts using Fish Bone Diagram and Failure Mode and Effect Analysis technique (FMEA), and using the results to amend the problem of failure that have possibilities to produced defects exceeding the set requirement.  The process of improvement will be using additional tools to assisted in production, such as installation of air duct for removing scrap metals, using sensor at the head of feed wire, and provided training section for employees. After the implementation of the new process there was to use of a control plan to control and maintain the standard of work. The results of the new operation show that it can reduce defects from 3299 PPM to 758 PPM, and which it exceed the expected target.