Rancangan Perbaikan Proses Pada Produk Kendaraan Bermotor dengan Menggunakan Metoda Failure Modes and Effect Analysis (Studi Kasus di PT.X).

摘要

PT. X is an automotive indutsry produces front and back lamps for udmotorcycles and cars. Production processes are divided into injection, aluminizing, udand assembling. In the production process, PT. X often meet failure that cause in udproducing under specification and standard product, and categorized as defect udproduct. All the products’ defect percentage are above the assigned percentage that udis 2%. udTo break all the problems above, Failure Modes and Effect Analysis ud(FMEA) is used. And also some other tools to help solving the problems such as udFault Tree Analysis (FTA), Fishbone Diagram, and Pareto Diagram. The step udbegan with processing production data in 2015. It helps to discover which process udthat experience failure and causing much defect and to discover causative factors. udAfter all the steps were done, it shows that aluminizing process is the one udthat often experience failure with defect percentage 66,3 %. Dot defect is the most udappeared defect with 47,3 % percentage. Causative factor of dot defect in udaluminizing process is because the machine and tool. Machine often meet error (fan udbelt motor for exhaust blower is broken) because of the continous usage and jig and udinside part of the machine is filthy because of the high usage intensity. udCalculation using FMEA method results RPN in aluminizing process is 512 udand placed at the first rank. Therefore, aluminizing process become priority to be udfixed. The possible improvement to do is making periodic schedule in exchanging udfan belt motor for exhaust blower, and improvement in jig cleaning schedule and udinside part of the machine, which has always been done once a week become once udin 4 days. ud udKeywords : Process improvement, Failure Modes & Effect Analysis, Vehicle udLights FMEA.