Rismawati, Juwita (2020) Perbaikan Kualitas Proses Produksi Jerigen 5 Liter Pada PT. Jerigen Dengan Six Sigma. Other 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.
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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 (Other) |
|---|---|
| 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: | 30 Oct 2023 08:28 |
| URI: | http://repository.its.ac.id/id/eprint/79265 |
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