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All Journal Indonesian Journal of Innovation Studies International Journal Multidisciplinary
Cahyana , Atikha Sidhi
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Computer Science & IT Education Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Physics

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Overcoming Quality Control Challenges in Car Exhaust Manufacturing: Mengatasi Tantangan Kontrol Kualitas dalam Pembuatan Knalpot Mobil Setiono, Moch. Agung; Cahyana , Atikha Sidhi
Indonesian Journal of Innovation Studies Vol. 25 No. 4 (2024): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v25i4.1188

Abstract

PT. XYZ, a manufacturer of car exhaust components, faces significant defect-related challenges, impacting productivity and market competitiveness, particularly in Europe. Over six months, 3.18% of 184,708 produced components were defective. This study aims to determine the sigma level of quality control and identify root causes of defects using the Six Sigma DMAIC method and Root Cause Analysis (RCA). Observations and interviews revealed human error, machine issues, improper methods, substandard materials, and environmental factors as key contributors to defects. The sigma level was found to be 4, indicating suboptimal quality control. Recommendations for improvement include SOP development, operator training, standardized production methods, regular machine maintenance, and 5S organizational practices. Implementing these could reduce defects and improve productivity. Highlight: Defect Rate: 3.18% in 184,708 components. Sigma Level: Evaluated at level 4. Improvements: Implement SOPs, training, maintenance, 5S practices. Keyword: Quality Control, Six Sigma, Root Cause Analysis, Manufacturing, Car Exhaust Components
Co-Authors Boy Isma Putra Deddy Supriyadi Fernata, Farhan Firdaus, Muhammad Zaqqi Zamroni Kusuma , Dewi Fortuna Lindyawati, Lely Marodiyah, Inggit Mauli, Fajar Dwi Nurmalasari , Intan Rohma Pratama, Muchammad Ikbal Prediansyah, Mochamad Afan Wahyu Rais, Sofyan Alim Ribangun Bamban Jakaria Sari W, Indah Apriliana Setiono, Moch. Agung Tedjo Sukmono Wiwik Sulistiyowati