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All Journal Jurnal Teknik Mesin Jurnal Teknik Industri Terintegrasi (JUTIN) Quantum Teknika
Yudhistira, Gilang Awan
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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The Effect of Reducing Vibration Of Lathe to Aisi 4340 Surface Roughness Yudhistira, Gilang Awan; Fitri, Muhamad; Mizan, Adlan; Rafi, Muhammad Miftah; Anugrah, Hasan
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 12, No 3 (2023)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v12i3.23663

Abstract

One of the quality affected factors of machined products is surface roughness, which is affected by several factors, like force and vibration. Vibration is the derivation of deflection. To improve efficiency of double chuck, in this experiment will modify the holder of double chuck to decrease the vibration. The modifications are divided into used wood to decrease length force from clamp and change the entry angle from 45° to 90°. The vibration was measured by a vibrometer at the vertical axis. Each modification succeeded to decrease the vibration at a reduction of 1.5 mm, where the highest decrease was changed the entry angle from 0.21-0.23 m/s2 to 0.10 m/s2. Modification on changed the entry angle has better surface roughness which the value of 1.3 µm.
Usulan Perbaikan Waktu Kerja untuk Peningkatan Kapasitas Produksi pada Perusahaan Pakan Ternak Suparno, Adizty; Utami, Diah; Yudhistira, Gilang Awan
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 4 (2025): October
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i4.50666

Abstract

Manufacturer of cattle and goat feed, faces challenges in meeting increasing market demand. To increase production capacity, the company can implement several industrial engineering-based strategies. First, time and motion analysis can be conducted to identify and reduce non-productive activities, thereby improving work efficiency. Second, production line balancing is important to ensure equitable workload distribution, reduce waiting time between processes, and maximize output. Third, the implementation of lean manufacturing can help eliminate waste in the production process, such as overproduction and excessive waiting time. In addition, the use of automation technology in the feed processing process can accelerate production and reduce human error. The implementation of these proposed improvements is expected to significantly increase the production capacity.
Evaluasi Pengaruh Temperature Solution Treatment terhadap Ketahanan Aus dan Kekerasan Baja Hadfield Faizal, Imam; Pratiwi, Swandya Eka; Yudhistira, Gilang Awan; Burhanuddin, Yanuar; Heltha, Fahri; Wahyudi, Haris
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol. 7 No. 1 (2025): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v7i1.27082

Abstract

Hadfield steel is a high-manganese steel characterized by a high manganese content and is often referred to as high-manganese steel. Its alloy composition is generally maintained at a carbon-to-manganese ratio of approximately 1:10. This steel is known for its superior mechanical characteristics, including toughness, hardness, and wear resistance. In the as-cast condition, however, Hadfield steel initially exhibits inferior mechanical properties owing to the formation of carbide precipitates along grain boundaries caused by slow cooling during solidification. These grain-boundary carbides generate localized stresses and act as potential crack-initiation sites, thereby reducing toughness and ductility. Consequently, subsequent heat treatment, particularly solution treatment, is required to dissolve the carbides back into the austenitic matrix. The present results show that solution treatment significantly affects the mechanical properties and wear resistance of Hadfield steel. Hardness decreased after solution treatment (224.6 → 206.1 → 196.2 HV) because of the reduction of grain-boundary carbides. Nevertheless, the wear rate decreased, indicating improved wear resistance, after solution treatment: 0.299 → 0.179 → 0.119 ×10⁻³ mm³/N·m. After wear testing, the surface hardness increased owing to strain hardening, particularly in the heat-treated (HT) specimens: 230.2 → 262.8 → 272.2 HV. These findings indicate that solution treatment improves wear resistance through microstructural homogenization and enhanced strain-hardening response during wear loading.
Co-Authors Adizty Suparno Anugrah, Hasan Diah Utami, Diah Faizal, Imam Heltha, Fahri Mizan, Adlan Muhamad Fitri Rafi, Muhammad Miftah Swandya Eka Pratiwi Wahyudi, Haris Yanuar Burhanuddin