Peningkatan Kualitas Proses Pemasangan V-Bracket Dengan Menggunakan Metode Lean Six Sigma (Studi Kasus: PT PAL)

Imron, Mohammad (2021) Peningkatan Kualitas Proses Pemasangan V-Bracket Dengan Menggunakan Metode Lean Six Sigma (Studi Kasus: PT PAL). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Proses pemasangan V-Bracket merupakan salah satu proses kritis dalam pembuatan kapal. Dalam proses pemasangan V-Bracket di PT PAL, masih ditemukan indikasi terjadinya waste, termasuk defect pada V-Bracket. Hal ini menjadi salah satu fokus perusahaan untuk meminimalisir waste tersebut untuk meningkatkan kualitas proses dan hasil pemasangan V-Bracket. Penyelesaian masalah ini dilakukan dengan menggunakan metode Lean Six Sigma. Berdasarkan hasil identifikasi waste dengan klasifikasi E-DOWNTIME, diketahui waste kritis adalah defects, waiting, dan Environmental, Health, and Safety (EHS). Selanjutnya dilakukan perhitungan nilai level sigma dan analisis kapabilitas proses dengan hasil 2,45 σ dan process performance belum capable. Pada langkah selanjutnya dilakukan analisis penyebab terjadinya waste kritis menggunakan Five Whys. Selanjutnya, dilakukan analisis menggunakan Failure Mode and Effect Analysis (FMEA) pada setiap akar penyebab waste kritis untuk menentukan rekomendasi perbaikan berdasarkan nilai Risk Priority Number (RPN) yang tertinggi. Hasilnya, potensi kegagalan Elongated Indication (EL) pada waste defects menjadi potensi kegagalan dengan nilai RPN tertinggi sehingga rekomendasi perbaikan disusun untuk mengatasi potensi kegagalan tersebut. Setelah disusun rekomendasi perbaikan, dilakukan perbandingan nilai level sigma pada kondisi eksisting dan estimasi setelah rekomendasi perbaikan diimplementasikan. Dari perhitungan tersebut diperoleh peningkatan level sigma dari semula sebesar 2,45 σ menjadi 2,95 σ. Hal ini menunjukkan potensi terjadinya peningkatan kualitas pada proses pemasangan V-Bracket.
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The process of installing the V-Bracket is one of the critical processes in shipbuilding. In the process of installing the V-Bracket at PT PAL, there were still indications of the occurrence of waste, including defects in the V-Bracket. This has become one of the company's focuses to minimize the waste to improve the quality of the process and the results of the V-Bracket installation. Solving this problem is done using the Lean Six Sigma method. Based on the results of waste identification with the E-DOWNTIME classification, it is known that the critical wastes are defects, waiting, and Environmental, Health, and Safety (EHS). Next, the calculation of the sigma level value and process capability analysis was carried out with the result of 2.45 and the process performance was not yet capable. In the next step, an analysis of the causes of critical waste is carried out using Five Whys. Furthermore, an analysis is carried out using Failure Mode and Effect Analysis (FMEA) on each root cause of critical waste to determine recommendations for improvement based on the highest Risk Priority Number (RPN). As a result, the potential for Elongated Indication (EL) failure on waste defects becomes a potential failure with the highest RPN value so that recommendations for improvement are prepared to overcome these potential failures. After making recommendations for improvement, a comparison of the sigma level values in the existing condition and estimation is carried out after the improvement recommendations are implemented. From these calculations, it was obtained that the sigma level increased from 2.45 σ to 2.95 σ. This shows the potential for quality improvement in the V-Bracket installation process.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	E-DOWNTIME, Failure Mode and Effect Analysis, Five Whys, Lean Six Sigma, V-Bracket.
Subjects:	T Technology > TS Manufactures > TS176 Manufacturing engineering. Process engineering (Including manufacturing planning, production planning)
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Industrial Engineering > 26201-(S1) Undergraduate Thesis
Depositing User:	Mohammad Imron
Date Deposited:	20 Aug 2021 01:02
Last Modified:	20 Aug 2021 01:02
URI:	http://repository.its.ac.id/id/eprint/87670

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