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All Journal MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah JURNAL REKAYASA SISTEM INDUSTRI JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI G-Tech : Jurnal Teknologi Terapan Jurnal Pengabdian dan Edukasi Sekolah (Jubaedah) Jurnal Abdi Masyarakat Indonesia Jurnal Inovasi Hasil Pengabdian JERA : Journal of Engineering Research and Application
Muhammad Miftahul Abid
Institut Teknologi Sumatera, Indonesia
Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Public Health Social Sciences Transportation Other

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A Fuzzy FMEA-Based Approach for Risk Analysis in Car Body Spot Welding Processes Muhammad Miftahul Abid; Eka Rachmadi Endarta Putra; Andhyka Tyaz Nugraha; Tri Wisudawati
G-Tech: Jurnal Teknologi Terapan Vol 10 No 2 (2026): G-Tech, Vol. 10 No. 2 April 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i2.9416

Abstract

The spot welding process using robotic systems is associated with a high risk of failure, including spot weld release, spatter, missed welds, unavailable weld spots, missing brackets, porous welds, double welds, incorrect weld positions, and sliding joint parts. This study aims to enhance risk assessment in spot welding by integrating fuzzy logic inference with Failure Mode and Effects Analysis (FMEA) to overcome the limitations of conventional FMEA in handling uncertainty and ambiguity. The proposed model incorporates fuzzy representations of severity, occurrence, and detection parameters to calculate the Fuzzy Risk Priority Number (FRPN) through three stages: fuzzification, fuzzy inference, and defuzzification. A case study was conducted in the spot welding process of automotive body components in Karawang, using real process data and expert validation. The results show that FRPN values range from 3.95 to 6.38, with the highest risks identified in spot weld release (FRPN = 6.38) and incorrect weld position (FRPN = 6.29), indicating that these failure modes are the top priorities for corrective actions. Furthermore, the fuzzy FMEA approach provides better discrimination of risk levels compared to conventional FMEA, particularly in differentiating failure modes with similar RPN values, thereby improving the accuracy and reliability of risk prioritization.
Co-Authors Andhyka Tyaz Nugraha Ash Shidik, Arya Beta Beta Arya Ash Shidik Eka Rachmadi Endarta Putra Faris Al Amin, Septian Izdihar, Ulfah Kusuma, Harun Indra Nia Sastra Permata Nurwijayanti Sherin Ramadhania Suroso, Muhammad Suryo Panotogomo Abi Tri Wisudawati Ulfia, Yessi Nasia Wahyu Sidiq Saputra Wayan Arya Utari, Ni Wisudawati, Tri