Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Indonesian Journal of Innovation Studies PELS (Procedia of Engineering and Life Science)
Pahlewi, Muchamad Reysa
Unknown Affiliation
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Law, Crime, Criminology & Criminal Justice

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Welding And Maintenance Factory Work Tools: Pengelasan Dan Perawatan Alat Kerja Pabrik Pahlewi, Muchamad Reysa; Akbar, Ali
Procedia of Engineering and Life Science Vol. 5 (2024): Proceedings of the 7th Seminar Nasional Sains 2024
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v7i0.1453

Abstract

Abstract. The welding process is widely used to join metals. However, there are still many welders who have not mastered welding techniques that comply with the standards set by welding associations. This research was conducted to find out how the welding process and maintenance of factory work tools works. Research begins by identifying machine damage or factory equipment damage. Once the damage is known, repairs are then carried out on the damaged machine. The results of research regarding welding and maintenance of factory work equipment show that damaged factory equipment must receive regular inspection and maintenance. Factors that cause damage to factory work equipment are human error, lack of diligent cleaning of industrial work tools, and can also be caused by the age of industrial machines. Keywords – Damage; Welding; Maintenance Abstrak. Proses pengelasan banyak digunakan untuk menyambung logam-logam. Akan tetapi tidak banyak juru las yang belum menguasai teknik pengelasan sesuai standart yang ditetapkan oleh asosiasi pengelasan. Penelitian ini dilakukan untuk mengetahui bagaimana proses pengelasan dan perawatan alat-alat kerja pabrik. Penelitian diawali dengan mengidentifikasi kerusakan pada mesin atau kerusakan alat-alat pabrik. Setelah diketahui kerusakannya, selanjutnya dilakukan perbaikan pada mesin yang rusak. Hasil penelitian dari pengelasan dan perawatan alat kerja pabrik menunjukkan bahwa alat pabrik yang sudah mengalami kerusakan harus mendapatkan pemeriksaan dan perawatan secara rutin. Faktor penyebab kerusakan pada alat-alat kerja pabrik dikarenakan adanya human error atau kesalahan manusia, kurang rajin membersihkan alat-alat kerja industri, dan juga bisa disebabkan karena usia mesin industri sudah tua. Kata Kunci – Kerusakan; Pengelasan; Perawatan
Forged Piston Delivers Higher Power and Torque in Jupiter Z: RCM II Mengidentifikasi Komponen GTG yang Kritis dan Strategi Pemeliharaan Pahlewi, Muchamad Reysa; Fahruddin, Dr.A’rasy; Akbar, Ali; Mulyadi
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.2132

Abstract

General Background: Automotive development increasingly emphasizes component material selection and manufacturing methods to optimize engine performance. Specific Background: Pistons are critical engine components whose production route, particularly casting and forging, may influence power and torque characteristics. Knowledge Gap: Although many studies discuss piston materials and engine performance separately, direct comparative experimental evidence between casting and forged pistons under identical operating conditions on the Yamaha Jupiter Z 2007 remains limited. Aims: This study aims to analyze the differences in power and torque generated by standard, casting, and forged pistons using dynotest measurements at 2000, 4000, 6000, and 8000 RPM. Results: The results indicate that forged pistons produced the highest overall performance, with average torque reaching 13.32 Nm at 2000 RPM and average power reaching 11.2 HP at 6000 RPM. Casting pistons occupied an intermediate position, while standard pistons consistently produced the lowest values. At high engine speed, forged pistons maintained better performance stability than casting and standard pistons. Novelty: The study directly compares three piston types within the same motorcycle platform while also relating performance differences to piston mass variation, where forged pistons showed the lightest weight. Implications: These findings indicate that piston manufacturing type is closely associated with engine output, and forged pistons offer stronger potential for applications requiring higher power and torque performance. Keywords: Forged Piston, Casting Piston, Engine Performance, Power and Torque, Dynotest Key Findings Highlights Forged pistons produced the highest output across most engine speed ranges. Peak engine capability was observed around 6000 RPM before declining at 8000 RPM. Lower piston mass was associated with stronger high-speed performance stability.
Co-Authors Ali Akbar Fahruddin, Dr.A’rasy MULYADI