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Jurnal Energi Dan Manufaktur
Published by Universitas Udayana
ISSN : 23025255     EISSN : 25415328     DOI : -
Core Subject : Science, Engineering,
Energy Industrial & Manufacturing Engineering
"Jurnal Energi dan Manufaktur" is a journal published by Department of Mechanical Engineering, University of Udayana, Bali since 2006. During 2006-2011 the journal's name was "Jurnal Ilmiah Teknik Mesin CAKRAM" (Scientific journal in mechanical engineering, CAKRAM). "Jurnal Energi dan Manufaktur" is released biannually on April and October, respectively. We invite authors to submit papers from experimental research, review work, analytical-theoretical study, applied study, and simulation, in related to mechanical engineering (energy, material, manufacturing, design) to be published through "Jurnal Energi dan Manufaktur".
Arjuna Subject : -
Articles 14 Documents
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Search results for , issue "Vol 3, No.1 April 2009" : 14 Documents clear
The Influence of Heat Treatment and Quencing Media at Bronze 80% Cu–20% Sn toward Fatique Life Anak Agung Istri Agung Sri Komaladewi; I Ketut Suarsana
Jurnal Energi Dan Manufaktur Vol 3, No.1 April 2009
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (241.001 KB)

Abstract

Production of the Balinese gamelan product rest on molding process which then continued with forging process, adjustment,and finally the finishing process. But still often to make the failure from this material like. The material become brokebecause heavy thing with the user processing (playing gambelan) with continuity in the long time. The broke that happenfrom the heavy thing by the continuety that is called fatigue. At this examination the things that will be up is how much theheat treatment influence and the cooler thing with the fatigue life through the Reversed Bending process. By to variated theheat treatment and cooler thing to Bronze mixture 80%Cu and 20%Sn. This examination to aim at knowing the heattreatment influence and cooler thing at the composition of Bronze 80%Cu and 20%Sn about the fatigue life.The makingprocess of this things made by copper solution and the white Tin with the composition are 80%Cu and 20%Sn by variatedheat treatment and cooler media. The produce of this solution will print with the Reversed Bending speciment. Then thespeciment gift the heat treatment about 6500 C, 7000 C till 7500 C, and then the speciment keep cold by the water, oil and theair. The thing will be analize from the breach counture, Macro Structure and Micro Structure.The examination produceshowing the growing up at the fatigue life in the Bronze mixture 80%Cu - 20%Sn, From the heat treatment 6500 C, 7000 Cand 7500 C and become the drop age fatigue with the water cooler media with the age fatigue abaut 36621 cycle, and thefatigue by oil about 44975 cycle and the air cooler age fatigue about 55191 cycle. The inspection makro structure thebreach face colouring litle bit dark and the inspection mikro structure, the metal structure lool more bright.
The Influence of Sintering Temperature toward Density and Strength of Plastic-Ruber Composite Heru Sukanto
Jurnal Energi Dan Manufaktur Vol 3, No.1 April 2009
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (211.54 KB)

Abstract

The research investigates the effect of sintering temperature on density and mechanical properties of HDPE-rubbercomposite which was produced by pressured sintering methodThe materials that were used are HDPE plastic waste of oilbottle and unused tire. These materials were powdered via mechanical grinding manually. The powder size of -20 mesh wasselected as a raw material for specimen. Producing the specimens involved powder technology. Pressured sintering processwas commited for 5 minutes under pressure load of 1 MPa. The sintering temperature was variated along 110 to 140oC byincreasing 10oC incrementally. Specimen testing involved density, bending strength and izot impact strength. All of testingwas conducted on ASTM standard testing.The result reveals that increasing sintering temperature will grow up the density,bending strength and impact strength of specimen up to 10%, 12% and 72% respectively. The extreme increasing ofspecimen properties occurs at the temperature range of 120 to 130oC..
Influence Use of NGK Platinum C 7hvx Sparkplug toward Performance and Emision Gas of Four Stroke Motorcycle 110 Cc Daud Pulo Mangesa
Jurnal Energi Dan Manufaktur Vol 3, No.1 April 2009
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.677 KB)

Abstract

Spark plug is a tool for producing an electric fire arc which has influences in process of combustion perfection, in internalcombustion engines. Spark plugs with electrode tip made of platinum, have good conducting character. The spark plugs areclaimed by their manufactures, are able to improve engines performance and able to reduce waste gases emission rate. Targets ofthis research is comparison C 7HSA Standard NGK Spark plug with NGK Platinum C 7HVX spark plug, in engine performance (power, efficiency, fuel consumptions ) and in waste gases emission rate ( CO rate level ) at engine rotation 2500 rpm, 3000 rpm,and 3500 rpm. 1 kg, 1,5 kg, 2 kg loads were used in waste gases emission rate examinations and fuel consumptions examinations.Data-processing methods were used in this research were descriptive analysis, correlation analysis and regression linieranalysis. Results of this research showed that by using NGK Platinum C 7HVX spark plug will be able to improve engineperformance ( power, efficiency, fuel consumptions ) and gases emission rate ( CO rate level ) if we compare with engine whichusing C 7HSA Standard NGK Spark plug.
Hole Geometrical at Glass Fiber Reinforced Polymer Laminate Affected by Parameter of Drill Process I Made Astika; I Gusti Ketut Sukadana
Jurnal Energi Dan Manufaktur Vol 3, No.1 April 2009
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.781 KB)

Abstract

Fiber Reinforced Composite (FRC) is mostly applied such as the low density and high elastic strain of glass fiber reinforcedcomposite (GFRC) or glass fiber reinforced polymer (GFRP). Although GFRP can be made as initial design, the finalmachining processes is still needed such as hole drilling component. The hole drilling machining process consisted of manyparameters such as cutting speed (v) and feed rate (fz). These parameters can influence the geometrical characteristics ofproduct such as the accurate dimension of hole or even the geometrical defect.In this case it is necessary to investigate theeffect of feed rate (fz) to the geometrical of hole on GFRP laminate. The feed rate was varied as 0.1, 0.18 and 0.24 mm/rwith diameter of drilling tool is 5 mm. The material composite was glass fiber with woven roving and it was lied into 10 layerwith a thickness of 4 mm. Yukalac 157BQTN-EX with Mekpox hardener was use for matrix. The mold process was a handlay-up.The result showed that the maximum damage of product was found when the maximum feed rate of 0.24 mm/r wasoperated. The damage found was inaccurate size/dimension on hole and geometrical defect of hole (elliptical shape).

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