Quality control for PT. straightway primex with bayes-fishbone metods and control chart analysis

Abstract

Quality control is a process that essentially renders the entity as the quality reviewer of all the factors involved in the production activity. Quality Control process of each company is a very important thing to do. One method that can be used in the quality control process is Quality Control methods at PT. Straightway Primex. PT. Straightway Primex was established in 1989 is a company that produces photo frames and has 1500 employees. PT. Straightway Primex produces 9 products consisting of wooden frame, shelving, baroque frame, mirror frame, tray, ledges, corbel, and mini furniture and has 19 machines used in the production process to produce the product according to the pre-order customer. The Quality Control division is very influential in the manufacturing process of its production, one of which is timber frame. Quality Control can minimize the defect that occur. The method used is the Bayes-Fishbone method and analyzed the P-control map for the top three defect. Bayes Fishbone used has the highest percent is on the man and machine factor of 30%. Defect on picture frame type OTS 311 size 16 x 20 cm The largest Expresso color is defect less spray amounting to 32.90% with a Defect amount of 101 pieces. Meanwhile, the smallest defect in the photo frame type of OTS 311 size 16 x 20 cm expresso color is defect rupture of 0.65% with 2 pieces of defects.