Yudiane, Silmi (2024) Analisis Kapabilitas Proses Produksi Automotive Safety Belt di PT Koko Metal International. Diploma thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Tercatat dalam laporan statistik Indonesia 2023 yang dirilis oleh Badan Pusat Statistik, selama periode 2012 hingga 2022 jumlah mobil penumpang di Indonesia sudah bertambah 6,74 juta unit atau bertumbuh sebanyak 65%. Melihat kondisi tersebut, semakin banyak jumlah mobil penumpang, maka akan semakin banyak pula komponen otomotif yang akan diproduksi. PT. Koko Metal International merupakan salah satu perusahaan manufaktur yang dapat memproduksi komponen otomotif. Salah satu komponen otomotif yang konstan diproduksi perusahaan di setiap bulannya adalah automotive safety belt model upper stay CTR BGK120547D. PT. Koko Metal International selalu berupaya untuk memenuhi permintaan konsumen dengan kualitas produk yang baik. Perusahaan mengidentifikasi kualitas produk dengan cara visual yaitu cacat dan tidak cacat. Belum pernah dilakukan analisis kapabilitas proses secara mendalam. Metode statistik yang dapat digunakan untuk mengontrol dan mengetahui kualitas proses produksi adalah peta kendali p, karena untuk meneliti jumlah unit cacat dengan jumlah sampel tidak konstan. Untuk mengetahui faktor- faktor yang menyebabkan ketidaksesuaian hasil produk dapat dianalisis menggunakan diagram sebab akibat. Sumber data yang digunakan adalah hasil inspeksi di setiap proses produksi. Data yang diambil adalah data produk cacat selama periode Bulan Januari 2021 hingga Desember 2022 dengan variabel jumlah produk cacat. Proses dikatakan kapabel jika proses terkendali secara statistik dan memiliki indeks kapabilitas proses lebih dari satu. Proses produksi yang kapabel pada fase I adalah proses potong, piercing, pukul, bending 1, dan bending 2. Pada fase II, proses yang kapabel adalah proses potong, pukul, dan bending 2. Sedangkan, proses yang belum kapabel adalah proses welding pada fase I, serta proses piercing, bending 1, dan welding pada fase II. Faktor penyebab kecacatan produk adalah faktor lingkungan, metode, material, manusia, dan mesin. Namun, penyebab utama dari kecacatan produk adalah faktor manusia. Operator kurang teliti dan kurang menjaga kebersihan saat mengoperasikan mesin.
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According to the 2023 statistical report released by the Central Statistics Agency of Indonesia, during the period from 2012 to 2022, the number of passenger cars in Indonesia increased by 6.74 million units, or grew by 65%. Considering this situation, with an increasing number of passenger cars, there will also be a higher demand for automotive components. PT. Koko Metal International is one of the manufacturing companies capable of producing automotive components. One of the automotive components consistently produced by the company every month is the upper stay model of the CTR BGK120547D automotive safety belt, ordered by PT. Sungwo. PT. Koko Metal International always strives to meet consumer demands with high-quality products. The company identifies product quality visually, distinguishing between defective and non-defective items. However, in-depth process capability analysis has not been conducted before. A statistical method that can be used to control and assess the quality of the production process is the p-chart, as the number of defective units with a constant sample size needs to be examined. To identify the factors causing product nonconformity, a cause-and-effect diagram can be analyzed. The data source used is the inspection results at each production process. The data collected include defective product data during the period from January 2021 to December 2022, with the variable being the quantity of defective products. The process is said to be capable if the process is statistically controlled and has a process capability index of more than one. Capable production processes in phase I include cutting, piercing, punching, bending 1, and bending 2. In phase II, capable processes include cutting, punching, and bending 2. Meanwhile, the processes that are not capable are welding processes in phase I, as well as piercing, bending 1, and welding processes in phase II. The factors causing product defects are environmental factors, methods, materials, human factors, and machines. However, the main cause of product defects is human factors. Operators are less meticulous and less attentive to cleanliness when operating machines.
| Item Type: | Thesis (Diploma) |
|---|---|
| Uncontrolled Keywords: | Diagram Sebab Akibat, Indeks Kapabilitas Proses, Peta Kendali p |
| Subjects: | Q Science T Technology > TS Manufactures > TS155 Production control. Production planning. Production management |
| Divisions: | Faculty of Vocational > 49501-Business Statistics |
| Depositing User: | Silmi Yudiane |
| Date Deposited: | 18 Jul 2024 01:06 |
| Last Modified: | 18 Jul 2024 01:07 |
| URI: | http://repository.its.ac.id/id/eprint/108417 |
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