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All Journal Industrika : Jurnal Ilmiah Teknik Industri
Muhamad Maulana
Universitas Singaperbangsa Karawang
Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering

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Usulan Strategi Pengendalian Kualitas Pengecatan Part Motor Menggunakan Metode Six Sigma di PT Z Muhamad Maulana; Asep Erik Nugraha
Industrika : Jurnal Ilmiah Teknik Industri Vol. 10 No. 4 (2026): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/avvf1w72

Abstract

The high rate of defective products (Not Good) in the motorcycle parts painting process at PT Z is a critical issue affecting production efficiency and customer satisfaction. This study aims to Analyze the root causes of defects and propose quality Improvement strategies using the Six Sigma method with the DMAIC approach (Define, Measure, Analyze, Improve, Control). Based on production data from January 2024 to February 2025, the most frequent defect type was "minor dirt" with a sigma value of 2.97 and DPMO of 70,695. Using Fishbone and Pareto Chart analysis, the main causes were identified as dust contamination during painting, unstable paint pump pressure, and suboptimal spraygun settings. The proposed Improvements include operator training, preventive maintenance, raw material inspection, development of work instructions (WI), and workplace cleanliness Controls. The results demonstrate that the Six Sigma approach is effective in reducing defect rates and enhancing quality Control sustainably. Keywords: Defective Products, DMAIC, Motorcycle Parts Painting, Quality Control, Six Sigma
Co-Authors Nugraha, Asep Erik