APRILIANI, VARATRI (2020) ANALISIS PENGENDALIAN KUALITAS PRODUK COVER CRANK CASE 3 2DP DENGAN MENGGUNAKAN METODE FMEA (FAILURE MODE AND EFFECT ANALYSIS) DAN FTA (FAULT TREE ANALYSIS) DI PT. TAKAGI SARI MULTI UTAMA. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
PT. Takagi Sari Multi Utama is a Manufacturing company engaged in plastic injection for automotive products, motor vehicles and cars. Because so Many customers who entrust plastic injection products, then PT. Takagi Sari Multi Utama must pay attention and ensure the products produced are of good quality. Based on the company's historical data which includes data on the number of production, data on the number of defects, and data on the type of defect during the months of September - February 2020, there is one of the parts that produced the highest defect, the Cover Crank Case 3 2DP . Based on these events, this study aims to determine what failure modes can cause major problems to occur using the FTA (Fault Tree Analysis) method and use the Failure Mode and Effect Analysis (FMEA) method to identify and provide a Risk Priority Number (RPN) value for find out what priority failure modes need to be addressed first. From the results of data processing using the Pareto diagram it is known that the dominant defect of the Cover Crank Case 3 2DP is: Short mold defect type with a percentage of 28% and Silver defect type with a percentage of 23%. Then the analysis uses the FTA (Fault Tree Analysis) and Failure Mode and Effect Analysis (FMEA) methods with the results of the analysis that the occurrence of Short mold defects is caused by a resin that has cooled and hardened with an RPN 294 score and a Silver defect caused because the Material is mixed with other Materials with a RPN 343 score. Keywords:Cover Crank Case 3 2DP 3 2DP, Short mold, Silver, Pareto diagram, FTA (Fault Tree Analysis), Failure Mode and Effect Analysis (FMEA), Risk Priority Number (RPN). PT. Takagi Sari Multi Utama adalah perusahaan Manufaktur yang bergerak dibidang Injeksi plastik untuk produk otomotif kendaraan motor dan mobil. Karena begitu banyaknya customer yang mempercayakan produk plastik injectionnya, maka PT. Takagi Sari Multi Utama harus memperhatikan dan memastikan produk yang dihasilkan memiliki kualitas yang baik. Berdasarkan data historis perusahaan yang meliputi data jumlah produksi, data jumlah defect, dan datajenis defect selama bulan September - Februari 2020 terdapat salah satu part yang di produksi mengalami defect tertinggi yaitu Cover Crank Case 3 2DP. Berdasarkan kejadian tersebut maka penelitian ini bertujuan untuk mengetahui mode kegagalan apa saja yang dapat menyebabkan masalahutama terjadi menggunakan metode FTA (Fault Tree Analysis) dan menggunakan metode Failure Mode and Effect Analysis(FMEA) untuk mengidentifikasi dan memberikan Nilai Risk Priority Number (RPN) untukmengetahui prioritas mode kegagalan apa yang perlu diatasi terlebih dahulu. Dari hasil pengolahan data menggunakan diagram pareto diketahui bahwa defect dominan produk Cover Crank Case 3 2DP adalah : jenis defect Short mold dengan persentase 28% dan jenis defect Silverdengan persentase 23%. Kemudian analisa menggunakan metode FTA (Fault Tree Analysis)dan Failure Mode and Effect Analysis (FMEA) dengan hasil analisa bahwa terjadinya defect Short mold yaitu diakibatkan oleh resin yang sudah dingin dan mengeras dengan skor RPN 294 dan defect Silver diakibatkan karena Material tercampur dengan Material lain dengan skor RPN 343. Kata Kunci : Cover Crank Case 3 2DP, Short mold, Silver, Diagram pareto, FTA (Fault Tree Analysis), Failure Mode and Effect Analysis(FMEA), Nilai Risk Priority Number (RPN)
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