Nugroho, Andrian Susilo and Al-Faritsy, Ari Zaqi (2023) ANALISIS PENGENDALIAN KUALITAS PADA PROSES PRODUKSI CYLINDER BLOCK EJ59 DI PT. ASIAN ISUZU CASTING CENTER. Tugas Akhir thesis, University of Technology Yogyakarta.
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Abstract
ABSTRAK PT. Asian Isuzu Casting Center merupakan perusahaan yang bergerak dibidang manufaktur casting parts fo engine, commercial vehicle, dan machinery parts. dengan produk utama adalah Cylinder Block EJ59. Pada bulan Januari-2022 s/d Maret-2023 masih ditemukan produk yang tidak sesuai dengan spesifikasi atau cacat. Jumlah kecacatan setiap bulannya dengan rata-rata keseluruhan sebesar 4%, bila dijumlahkan produksi Cylinder Block EJ59 sebanyak 200.923 per-unit dan terdapat data produk defect sebanyak 17.911. Tujuan dari penelitian ini adalah untuk mengurangi cacat produk Cylinder Block EJ59. Berdasarkan hasil analisis yang telah dilakukan pada proses produksi Cylinder Block EJ59 dibagian moulding terdapat empat jenis defect yaitu defect sunakui, defect yakitsuki, defect yumore, dan defect norokui. Dari hasil peta kendali P menyatakan bahwa keempat jenis produk defect yang diperoleh tidak ada yang melewati batas control UCL maupun LCL. Maka dari itu kerusakan pada proses produksi Cylinder Block EJ59 masih berada di dalam batas-batas pengendalian. Dari hasil Fmea didapatkan nilai RPN (Risk Priority Number) tertinggi yaitu 350. Faktor-faktor yang menyebabkan terjadinya kerusakan produk Cylinder Block EJ59 dari hasil diagram fishbone adalah faktor manusia, metode, mesin dan bahan baku. Setelah diketahui penyebab kecacatan, maka dilakukan usulan perbaikan menggunakan 5W+1H dan pelaksanaan 5S guna mengurangi jumlah kecacatan pada produk Cylinder Block EJ59 yaitu dengan melakukan perawatan mesin secara rutin, membuat jadwal perawatan dan pembersihan mesin produksi, pengecekan bahan baku pasir greensand, cold-box dan no-bake mold diawal sebelum masuk kegudang penyimpanan bahan baku, mengawasi operator terkait penuangan cairan pouring dan diberlakukan SOP agar karyawan memiliki kedisiplinan dan loyalitas pada saat bekerja. Kata Kunci: Kaizen, Pengendalian Kualitas, 5W+1H, Pelaksanaan 5-S, ABSTRACT PT. Asian Isuzu Casting Center is a company engaged in manufacturing casting parts for engines, commercial vehicles, and machinery parts with the main product being Cylinder Block EJ59. In January-2022 to March-2023, products that do not comply with specifications or defects are still found. The number of defects each month with an overall average of 4%, if the total production of the EJ59 Cylinder Block is 200,923 per unit and there are 17,911 defect product data. The purpose of this study is to reduce product defects Cylinder Block EJ59. Based on the results of the analysis that has been carried out in the EJ59 Cylinder Block production process in the molding section, there are four types of defects which are sunakui defects, yakitsuki defects, yumore defects, and norokui defects. From the results of the P control chart, it is stated that the four types of defect products obtained did not cross the UCL or LCL control limits. Therefore, damage to the EJ59 Cylinder Block production process is still within the control limits. From the Fmea results, the highest RPN (Risk Priority Number) value was 350. The factors that caused damage to the EJ59 Cylinder Block product from the results of the fishbone diagram were human factors, methods, machines and raw materials. After knowing the cause of the defect, a recommendation for improvement is made using 5W+1H and 5S implementation to reduce the number of defects in the Cylinder Block EJ59 product by carrying out routine machine maintenance, scheduling maintenance and cleaning of production machines, checking raw materials for greensand sand, cold-boxes and no-bake mold at the beginning before entering the raw material storage warehouse, supervising operators regarding the pouring of liquid pouring, and implementing SOPs so that employees have discipline and loyalty at work. Keywords: Kaizen, Quality Control, 5W+1H, 5-S Implementation,
| Item Type: | Thesis (Skripsi, Tugas Akhir or Kerja Praktek) (Tugas Akhir) |
|---|---|
| Subjects: | T Technology > TS Manufactures |
| Divisions: | Fakultas Sains dan Teknologi > S1 Teknik Industri |
| Depositing User: | Kaprodi S1 Teknik Industri UTY |
| Date Deposited: | 01 Aug 2023 07:17 |
| Last Modified: | 01 Aug 2023 07:17 |
| URI: | http://eprints.uty.ac.id/id/eprint/13294 |
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