Perbaikan Kualitas Proses Produksi Jerigen 5 Liter Pada PT. Jerigen Dengan Six Sigma

Rismawati, Juwita (2020) Perbaikan Kualitas Proses Produksi Jerigen 5 Liter Pada PT. Jerigen Dengan Six Sigma. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

PT. Jerigen merupakan sebuah perusahaan yang bergerak dalam industri manufaktur packaging dari plastik dengan menggunakan injection dan blow molding. Salah satu produk yang diproduksi secara kontinu yaitu Jerigen 5 Liter. Proses produksi Jerigen 5 Liter masih menghasilkan jumlah produk defect yang tinggi melebihi 3% dari sasaran mutu jumlah produksi. Terdapat lima jenis defect yang menjadi defect kritis yaitu gumpal, bintik hitam, tes drop pecah, transparan dan bocor. Hal ini akan menyebabkan perusahaan mengalami kerugian dan menurunkan kepercayaan konsumen. Oleh karena itu, penelitian ini dilakukan untuk meminimalisir variasi produk yang mengakibatkan banyak produk defect dengan Six Sigma. Penelitian dimulai dari identifikasi proses produksi menggunakan flow chart, jenis defect dan critical to quality produk. Kemudian menghitung tingkat defect dengan pareto chart dan kapabilitas proses didapatkan nilai sigma awal perusahaan yaitu 4,04. Selanjutnya dilakukan analisis akar penyebab permasalahan menggunakan fishbone diagram dan 5 whys analysis didapatkan 8 akar permasalahan dan dilakukan pengisian kuisioner FMEA untuk menilai severity, occurence, dan detection dari setiap akar permasalahan. Dalam penelitian ini diusulkan lima alternatif perbaikan salah satunya yaitu perbaikan pada sistem inspeksi dan pemeliharaan. Apabila alternatif perbaikan tersebut diterapkan oleh perusahaan secara keseluruhan, maka akan terjadi peningkatan nilai level sigma dari 4,04 menjadi 4,14. ================================================================================================================== PT. Jerigen is a company engaged in the plastic packaging manufacturing industry using injection and blow molding. One of the products that is produced continuously is 5 Liter Jerry Cans. The production process of 5 Liter Jerrycans still produces a high number of defect products that exceed 3% of the quality target of the total production. There are five types of defects that become critical defects, namely lumps, black spots, broken drop tests, transparent and leaking. This will cause the company to experience losses and reduce consumer confidence. Therefore, this research was conducted to minimize the variety of products that resulted in many product defects with Six Sigma. The research starts from the identification of the production process using flow charts, the types of defects and critical to product quality. Then calculate the defect level with a pareto chart and process capability, the company's initial sigma value is 4.04. Furthermore, analysis of the root cause of the problem was carried out using a fishbone diagram and 5 whys analysis, which obtained 8 root causes and completed the FMEA questionnaire to assess the severity, occurrence, and detection of each root cause. In this study, five alternative improvements are proposed, one of which is repairing the inspection and maintenance system. If the alternative improvement is implemented by the company as a whole, there will be an increase in the sigma level value from 4.04 to 4.14.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Whys, Defect, Fishbone Diagram, Kapabilitas Proses, Six Sigma 5 Whys, Defect, Fishbone Diagram, Process Capability, Six Sigma
Subjects: T Technology > T Technology (General) > T58.8 Productivity. Efficiency
Divisions: Faculty of Industrial Technology > Industrial Engineering > 26201-(S1) Undergraduate Thesis
Depositing User: Juwita Rismawati
Date Deposited: 21 Aug 2020 08:41
Last Modified: 21 Aug 2020 08:41
URI: http://repository.its.ac.id/id/eprint/79265

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