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Manta, Faisal
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Transportation

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ANALISIS PERUBAHAN KECEPATAN SPINDLE TERHADAP KEKASARAN PERMUKAAN DAN KEAUSAN PAHAT PADA PEMBUBUTAN BAJA AISI 4340 Manta, Faisal; Artika, Kurnia Dwi; Radyantho, Kholiq Deliasgarin; Taufiq
ELEMEN : JURNAL TEKNIK MESIN Vol. 11 No. 2 (2024)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v11i2.210

Abstract

The cutting quality of a lathe is influenced by various cutting parameters. Spindle speed is the main parameter that influences the level of surface roughness and tool wear. The research aims to understand the impact of using a VNMG 160408-MA type insert tool in cutting AISI 4340 steel on surface roughness and tool wear values. The spindle speeds used are 190 rpm, 300 rpm, 460 rpm, 755 rpm, 1,255 rpm, feed rate 0.209 mm/rev, and cutting depth 0.5 mm. Experimental methods were used in the research. The research results showed that variations in spindle speed had a significant effect on surface roughness, tool wear and cutting temperature as evidenced by the P-Value < 0.05. At a value at a spindle speed of 190 rpm, the surface roughness value was 6.195 μm, tool wear was 0.002 grams and tool temperature was 48.178 °C. The spindle speed value of 1,255 rpm measured a surface roughness value of 1.971 μm, tool wear of 0.053 grams, and tool temperature of 90.389 °C.
ANALISIS PENGELASAN KOMBINASI GMAW DAN FCAW PADA BAJA ASTM A36 TERHADAP SIFAT MEKANI Manta, Faisal; Wiguna, Ahmad Zulfikar Patria; Pratama, Kafinra; Haliq, Ridwan
ELEMEN : JURNAL TEKNIK MESIN Vol. 11 No. 1 (2024)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v11i1.278

Abstract

A36 steel as raw material for heavy equipment attachments, such as blades and buckets. Gas Metal Arc Welding (GMAW) and Flux-Cored Arc Welding (FCAW) are used for the connection. High heat input and weld metal protection mechanisms are suitable for joining thick plates, however, in the field, malfunctions were found due to damage to the weld joint. To overcome this problem, research was carried out on two welding techniques to obtain optimal joint strength values. The research uses GMAW, FCAW and combination welding to join A36 steel with a V-beam angle of 60°. On the welding results, Magnetic Particle Inspection (MPI) and bending tests will be carried out. MPI testing states combination welding meets the requirements of the AWS1015 standard. The highest bending strength in FCAW welding was 160,419 MPa and the lowest in GMAW was 71,724 MPa, while combination welding was 113,312 MPa. The difference in value is influenced by the phases formed from each welding method visible in the microphotographs in the weld metal, HAZ and base metal areas.
Analisis Efektivitas Peralatan dan Prioritas Perawatan Berbasis OEE, Six Big Losses, dan FMEA pada Urea Plant PT Pupuk XYZ Alfa Sapang, Georal; Manta, Faisal; Sujana, I Made Ivan Wiyarta Cakra; Batubara , Yongki Christandi; Sari , Martina Puspita; Gunawan, Gad
SURYA TEKNIKA Vol 13 No 1 (2026): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v13i1.11848

Abstract

PT. Pupuk XYZ is one of the urea producers in Indonesia, operating Urea Plants with high production performance demands. The purpose of this study is to evaluate the efficiency of the equipment and pinpoint the reasons for the deterioration in performance at Urea Plant Pabrik 2. The methods used include Overall Equipment Effectiveness (OEE), Six Big Losses, fishbone diagram, and Failure Mode and Effect Analysis (FMEA). The average OEE value, according to the data, is 88.32%, which is higher than the world-class benchmark of 85%. Performance (92.49%) stays below the benchmark and becomes the primary limiting factor, whereas Availability (95.10%) and Quality (100%) satisfy the requirements. The primary source of the effectiveness loss is unscheduled downtime, which reached 181.44 hours as a result of key equipment failures. Therefore, the implementation of Total Productive Maintenance (TPM) is proposed to improve equipment reliability and reduce downtime
Co-Authors Ahmad Anas Arifin Alfa Sapang, Georal Batubara , Yongki Christandi Cahyadi, Achmad Irfan Devy Setiorini Sa’adiyah Endrawati, Budiani Fitria Gad Gunawan Haliq, Ridwan Haryono, Hadhimas Dwi Hidayat, Dinda Khoirunnisa Iskandar, Muhammad Kholiq Deliasgarin Radyantho Kurnia Dwi Artika, Kurnia Dwi Marshantya, Defiana Matarru , Andre Amba Nazhir , Alfah Pratama, Kafinra Qolbi, Selvia Nur Rahendaputri, Chandra Suryani Rajagukguk, Grendy Ary Krishna Ramadhan, Boby Alfiandy Rijal Surya Rahmany rizianiza, illa Rusdan, Adnan Saputra, Ferry Adi Sari , Martina Puspita Stofani, Dhio Suanggana, Doddy Sujana, I Made Ivan Wiyarta Cakra Syaharani, Destyana Putri Taufiq Wiguna, Ahmad Zulfikar Patria Yongki Christandi Batubara Yuike, Ariesta Zufadli, Muhammad Syahmi