![]() While the value of the RPN (risk priotity number) the largest value of FMEA table is defective burn throughs, with RPN value at 448, it is became the main target of the production process at the improvement stage of six sigma. Defect measurement results obtained value of DPMO (Defect Per Million Oppurtunies) at 65.167 and has a Sigma value at 3,01. The types of defects is the key improvement of production processes that can increase product quality. ![]() The analysis revealed four major types of defects that critical to quality (CTQ) which can degrade the quality of the products, that is burn through, scratch, high low and under-fill. In this study using five stages of Six Sigma: Define, Measure, Analyze, Improve and Control (DMAIC) on the production of spiral pipes ASTM A252 at PT KHI Pipe Industries Cilegon. Continuous improvement (CI) is one of the concepts of management in achieving superior quality, implementing Six Sigma method is one of the tool of CI. ![]() ![]() Quality is the key to win the competition, not only to make the company more effective, but also led the company to become more efficient. In the midst of current manufacturing industry, the company is required to operate more effectively and efficiently in order to win the competition.
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