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All Journal Jurnal Mechanical Journal of Applied Mechanical Technology (JAMET)
Agus Sifa
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Aerospace Engineering Automotive Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Penuaan Elektrode CuCr1Zr Spot Welding dengan Pendekatan Numerical Agus Sifa
JURNAL MECHANICAL Vol 7, No 2 (2016)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/mech.v7.i2.201607

Abstract

This study is to develop the constitutive equations to describe the mechanical deformation of the surfaces active of electrode. Most of tests are isotherms to characterize the material behavior at each temperature. The results isothermal test are used to identify the parameters of the law by using softwere SiDoLo, it shows the difference affected temperature. We can determine the value of the variable aging is a value between 0-1, the results identification of material aging through numerical calculations show the final result 0.9, then we can say that the specimens have been tested aging
Analisis Bentuk dan Jumlah Bilah pada Fan Chip Pendingin Portable untuk Proses Drilling Logam dengan Flow Simulation Agus Sifa; Shofi Syahfitri; Dedi Suwandi
Journal of Applied Mechanical Technology Vol 2 No 1 (2023): Journal of Applied Mechanical Technology (JAMET)
Publisher : Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (646.026 KB) | DOI: 10.31884/jamet.v2i1.31

Abstract

In the metal drilling process, tool temperature is an important parameter for optimizing cutting conditions, by limiting tool wear so that surface roughness can increase. The temperature rise that occurs in the metal drilling process is related to the rate, drill speed, and drill diameter, the drill speed which has a significant influence. One of the efforts to reduce the temperature of the drilling process is by using the Minimum Quantitative Lubricant (MQL) method. The MQL method is more effective by utilizing the surrounding air by making a fan that produces cold air. The method of this research is Computational Fluids Dynamic (CFD) simulation using flow simulation, with parameters 3 shapes of the blades, and variations in the number of blades 3,5 and 7. The purpose of this study is to analyze the shape and number of blades on a portable chip fan for metal drilling cooling processes. The CFD simulation results obtained from Model 2 and the number of blades 3 with a minimum temperature of 29.87°C and a maximum temperature of 30.19°C.
Co-Authors Dedi Suwandi Shofi Syahfitri