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Journal of Energy, Mechanical, Material and Manufacturing Engineering
ISSN : 25416332     EISSN : 25484281     DOI : -
Core Subject : Engineering,
Journal of Energy, Mechanical, Material and Manufacturing Engineering Scientific (JEMMME) is a scientific journal in the area of renewable energy, mechanical engineering, advanced material, dan manufacturing engineering. We are committing to invite academicians and scientiests for sharing ideas, knowledges, and experiences in our online publishing for free of charge. It would be our pleasure to accept your manuscripts submission to our journal site.
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Articles 7 Documents
Search results for , issue "Vol. 3 No. 1 (2018)" : 7 Documents clear
Design, Fabrication, and Testing of Prototype of Total Lumbar Disc Replacement Rela Adi Himarosa; Suyitno Suyitno
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 3 No. 1 (2018)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v3i1.5618

Abstract

Total Disc Replacement (TDR) implant is part of the prosthesis to treat degenerative disease by retaining the maneuverability of the disk itself. The TDR implant allows to repair the movement of the spines, absorbs the friction of intervertebral discs, and restore the height of the vertebrae. In this study, we constructed a new model of TDR implant, which is feasible to be mass-produced in Indonesia and performed static test to examine the mechanical properties of the new model. Before starting the prototype production, the finite element simulation is necessary. Simulation using Abaqus 6.14 software show that our design is safe from mechanical failure. The simulation test was performed using the static general model, non linear by considering the plasticity of UHMWPE material. Manufactured using CNC 3 Axis and the prototype was tested with ASTM 2077 standards, using two calibration model on horizontal position and tilted position of 27° to measure the compressive strength and shear strength respectively.
Effect of Mould and Melt Temperature on the Properties of Styrene Acrylonitrile Moulded Parts Cahyo Budiantoro; Adi Nugroho
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 3 No. 1 (2018)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v3i1.5711

Abstract

The quality of injection moulded parts can be influenced by processing parameters. The effect of mould temperature and melt temperature on the weight and shrinkage of Styrene Acrylonitrile moulded part was observed in this research. It was found that by increasing mold temperatures at constant melt temperature and injection speed, the weight of the part decreased and the shrinkage value slightly decreased. On the other hand, by increasing melt temperature at constant mold temperature and injection speed, the part weight increased. Both mold temperature and melt temperature gave only a small effect because the temperature difference was not too large.
The Effect of the Ball Size on the Product Characteristics of Shaker HEBM to Produce Nano Particle from Bamboo Charcoal Supriyono Sastrowiyono
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 3 No. 1 (2018)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v3i1.5761

Abstract

The objective of this research is to study the effect of ball size on characteristics of product of shaker high energy ball milling (HEBM) to produce nano particle from bamboo charcoal. A new shaker mechanism is developed. The characteristics of the particle are represented by particle size, surface morphology, and the substances presence in the product. Particle size analyzer (PSA) is conducted to have the particle sizes, whereas SEM and EDX are used to have surface morphology and substances presence in the products respectively. The mixtures of 11 gr of bamboo charcoal powder of 200 meshes and about 299 gr of steel ball are placed in vials. The vial is from stainless steel cylinder with 1  inch diameter and 120 mm length. The stroke of the shaker is 54 mm at increasing speed of connecting rod pulley for every 1 million cycles. The total number of cycle is 3 million. Therefore, the connecting rod speed of the first 1 million cycles is 300 rpm, the second is 333 rpm, and the third is 367 rpm. The steel ball sizes are  and  inch. PSA results indicate that there is no certain correlation between the steel ball size and particle size. The final shape of the particles is determined by fracture mechanism. The highest substance presence in the result is carbon and followed by silicon.
Forces Perspective of Drillability of Titanium Alloy 6Al-2Sn-4Zr-6Mo Mahros Darsin; Timotius Pasang; Zhan Chen
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 3 No. 1 (2018)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v3i1.5825

Abstract

This paper concerns on drillability of Ti-6Al-2Sn-4Zr-6Mo (Ti-6246) from the point view of thrust force (Fz) & torque (Mz) using a TiAlN CVD coated carbide tool. The condition of the material was varied with three different heat treatments. Whereas, the machining parameters were varied in cutting speed, feed rate and cooling application method. Taguchi method L-18 was employed to design the experiments. Both type of forces, thrust force and torque, were measured using a Kistler dynamometer, and the data were analyzed using a Minitab 17 software. The thrust force was influenced by the cutting speed 24%, depth of drilling 21%, heat treatment 13%, and feed rate 11%. The torque was influenced predominantly by feed rate up to 94%. Coolant application has no effect on reducing both thrust force as well as torque.
Effect of Alkaline Metal Catalyst to Transesterification of Jatropha Curcas oil Dini Kurniawati
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 3 No. 1 (2018)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v3i1.5880

Abstract

Biodiesel is a renewable energy made of oil or fat. It is either vegetable or animal oil or fat. By using catalyst, both substances are processed by triglyceride modification to be methyl esters. This research concerned to find out the potency of alkaline (IIA) catalyst in processing biodiesel. This process initiated by testing oil free fatty acid to determine processing method. FFA value is very important in the beginning of process as it correlates to further reaction process. Temperature variation specified on 30o to 70o for 6 hours reaction. Result shows that the best methyl esters value used Mg(OH)2, Ca(OH)2 and Ba(OH)2 catalysts, respectively in 61,75%; 62,66% and 73,03%  on 60oC reaction temperature.
Thermal Characteristic of Fire Resistance Electrical Cable for Residential Wiring Installation Yunita Sari; Mochammad Syamsul Ma'arif
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 3 No. 1 (2018)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v3i1.5882

Abstract

The objective of the research was to investigate thermal characteristic of electrical cable for residential wiring installation in order to acquire the initial data for fire protection study especially connected to short circuit. The research methods were testing the characteristic of cable by differential scanning calorimetry (DSC), fire resistant test, and current injection test according to International Standard IEC 60332-1-1. The results of the test were: differential scanning calorimetry gave the flame temperature of the cable was 3100C, fire resistant test shown the length of charred/melted cable was 65 mm and fire was extinguished in 10 s after the source of flame was cut, the current injection test showed that for current of 60 A, the cable started to melted and produce smoke after 270 s. The result showed that the cable comply with the specification, i.e. flame retardant cable or fire resistance cable as proved by test results and can be concluded that the cable gives adequate protection to the fire. Also, it can concluded that whenever short circuits occur, the cable able to withstand the high current and temperature for prolonged time and may only resulted in charred or melted only and doesn't make the cable came into flame/fire. Even if the fire is occurred in the cable as results of short circuit, the propagation is relatively not existed.
Defect Prediction at The Superplastic Forming Process of The Bipolar Plate by Simulation Ismi Choirotin; Moch. Agus Choiron
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 3 No. 1 (2018)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v3i1.5884

Abstract

 Improper parameter setting at the bipolar plate forming by superplastic process will outcome damage to the final workpiece. By employing computer simulation, the defect at the bipolar plate could be predicted close to the maximum thickness reduction and the effective stress data. Simulate the fabrication of bipolar plate by a number of forming temperature (350 – 450 °C) and air pressure (0.25 – 1 MPa) utilize Ansys, resulting maximum thickness reduction and effective stress occurred at 450 °C and 1 MPa. Make reference to the result, the bipolar plate didn’t expose any deficiency with 36.75% maximum thickness reduction. Have recourse to simulation will abbreviate the trial and error method as of the production process will more effective and efficient in terms of time and cost

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