Article Per Year (5 Year)
p-Index From 2021 - 2026
1.259
P-Index
This Author published in this journals
All Journal Rekayasa Mesin JMPM (Jurnal Material dan Proses Manufaktur) Turbo : Jurnal Program Studi Teknik Mesin Teknika Sains : Jurnal Ilmu Teknik ARMATUR : Artikel Teknik Mesin dan Manufaktur
Eko Nugroho
Universitas Muhammadiyah Metro
Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

Published : 14 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 14 Documents
Search

 1   2 
Pengaruh penambahan Magnesium pada remelting piston motor bekas menggunakan tungku induksi terhadap kekuatan fatik dan porositas Mahmud Yunus; Tri Cahyo Wahyudi; Eko Nugroho
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 3 No 1 (2022): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v3i1.1933

Abstract

Metal is a natural material that is very useful in various aspects of human life, one of which is non-ferrous metal material, the metal does not contain iron elements such as copper, aluminum, tin. The purpose of this study was to determine the effect of the addition of Magnesium on fatigue and porosity testing, using the casting method of used Aluminum piston motor using an induction furnace with a pouring temperature of 700°C. In the fatigue test, the addition of Magnesium element by 1% gets a cycle value of 5,100, and a variation of 1.5% gets a cycle value of 5,220 and a 2% variation gets a cycle value of 5,420. As for the porosity test, the addition of Magnesium element by 1% gets a porosity value of 9.2% and a variation of 1.5% gets a porosity value of 4.5% and a variation of 2% gets a porosity value of 3.5%.
Analisa penambahan unsur mangan pada remelting velg motor bekas terhadap nilai kekerasan Rahmat Rudiansyah; Eko Nugroho; Asroni Asroni
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 3 No 2 (2022): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v3i2.2866

Abstract

Remelting or metal casting is a recycling method that can be done to obtain a material with the desired physical and mechanical properties by changing its basic properties. Re-melting has a weakness, namely the toughness of the metal will decrease along with the re-melting treatment, due to phase changes that occur during the re-melting step, both physical and mechanical changes. Recycled aluminum wheels so that they can be reused properly and safely, treatment must be carried out to justify their structure. Manganese is used in several metal alloys to enhance favorable characteristics such as strength, hardness, and durability. The purpose of this study was to determine the hardness value of the effect of remelting used aluminum alloy wheels with manganese added in it. The research method used was experimental by re-melting used aluminum alloy wheels with manganese added, printing specimen models, and testing hardness using the Vickers method. The addition of manganese was carried out with a composition of 1.0%Wt, 1.2%Wt, and 1.4%Wt. The highest hardness value is owned by the specimen with the addition of 1.2%Wt manganese, which is 87.8 Kgf/mm2. The higher the Mn composition up to 1.2%Wt, the higher the hardness value. The hardness value will weaken when the addition of manganese exceeds 1.2%Wt.
ANALISA KECEPATAN SLUG ALIRAN DUA FASE DI DOWNSTREAM T-JUNCTION MINICHANNEL HORIZONTAL DENGAN RADIUS BELOKAN (r/dh) 0.7 Untung Surya Dharma; Calista Anjani Dwiputri; Eko Nugroho; Asroni Asroni; Deendarlianto Deendarlianto; Indarto Indarto
Jurnal Rekayasa Mesin Vol. 13 No. 3 (2022)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v13i3.1432

Abstract

Uneven distribution of the phases between in the main channel when two-phase flow passes through the T-junction it can cause the formation of slug flow which affects performance in the downstream area. The slug is formed due to the acceleration of the gas phase moving towards an average or stable velocity. The bend radius of the T-junction affects the formation of slug because the radius can increase the velocity of the gas phase. Research on the slug velocity was carried out in the downstream region of the horizontal mini channel T-junction. The working fluid used is air as the gas phase and water. The flow pattern and velocity slug analysis were carried out by visualizing the flow at a distance of ±30 mm from the T-junction, that works as a mixer of the working fluid. High-speed camera is used to record video and processed in the form of image processing with the MATLAB program. Two-phase flow slug velocity analysis conducted in the downstream area of ​​the horizontal minichannel T-junction, it can be concluded that the slug velocity tends to increase linearly with increasing superficial velocity of air and water. Comparison of slug velocity experimentally with the results of calculations using the equations of Fukano and Kariyasaki (1993) and Sudarja et al (2018) shows conformity with less than 10% of error margin, while Nicklin et al (1962) is ±30%.
Pengaruh variasi temperatur dan holding time pada proses annealing leaf spring dumb truck bekas terhadap nilai kekerasan Eko Nugroho; Nurlaila Rajabiah; Tri Cahyo Wahyudi; Juda Inai
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2589

Abstract

Leaf spring is a flat plate component that is clamped together to obtain product efficiency using metal materials, sometimes requiring high hardness and wear resistance. The steel working process is highly dependent on the heat treatment process and the cooling media used to obtain good product quality. The purpose of this study was to determine the effect of variations in temperature and holding time in the process of annealing used leaf springs and trucks on hardness values. This test has been carried out with each variation, namely, temperature 450oC, 550oC, 650oC and held for 30, 60, and 90 minutes as well as the cooling process using air in the heating furnace room. Based on the data obtained, the influence of temperature media and holding time in the Annealing process of used leaf spring dumb trucks has a low hardness value at a temperature of 650°C with a holding time of 30 minutes, 60 minutes and 90 minutes, the lowest hardness value is at 90 minutes, namely 7.7 While the HRC temperature of 550°C and holding time of 90 minutes reaches 26.9HRC, the hardness value is higher and the same as 450°C with holding time of 90 minutes which reaches 30.8HRC. The influence of temperature and holding time on the annealing process of used leaf spring dumb trucks has the lowest hardness value at a temperature of 650°C with a holding time of 90 minutes, namely 7.7 HRC.
Co-Authors Agus Zainudin Aji Dawam Firdaus Asroni Asroni Calista Anjani Dwiputri Deendarlianto Dwi Irawan Eko Budiyanto Eko Widiyanto Enggal Bagus Suseno Indarto Indarto Joko Sumosusilo Juda Inai M Farikil Maktum M Fatkurahman Maemunah Maemunah Mahmud Yunus Muhammad Budi Nur Rahman Nurlaila Rajabiah Rahmat Rudiansyah Rubi Kurniawan Sulis Dri Handono Tri Cahyo Wahyudi Tri Cahyo Wahyudi Untung Surya Dharma Untung Surya Dharma, Untung Surya Wahidin Wahidin YGK Putra