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JMPM (Jurnal Material dan Proses Manufaktur)
Published by Universitas Muhammadiyah Yogyakarta
ISSN : 25803271     EISSN : 26565897     DOI : 10.18196/jmpm
Core Subject : Engineering,
Engineering Mechanical Engineering
Jurnal Material DAN Proses Manufaktur focuses on the research and research review in the field of engineering material and manufacturing processes. The journal covers various themes namely Design Engineering, Process Optimization, Process Problem Solving, Manufacturing Methods, Process Automation, Material research and investigation, Advanced Materials, Nanomaterials, Mechanical solid and fluid, Energy Harvesting and Renewable Energy.
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Articles 16 Documents
 1   2 
Search results for , issue "Vol 2, No 1 (2018): Juni" : 16 Documents clear
Perancangan Injection Blowing Tools dengan Line Slider untuk Mesin Blow Molding dengan Kapasitas Volume 300 Ml Subkhan Nur Ikhsan; Cahyo Budiyantoro; Totok Suwanda; Adi Nugroho
JMPM (Jurnal Material dan Proses Manufaktur) Vol 2, No 1 (2018): Juni
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.2120

Abstract

Blow molding machine is a machine that used to produced plastic bottle with injection air system to blowing the soft preform (±100℃)  at 7 bar pressure of air. They are two main components in injection blowing tools i.e, injection tools to distribute the high pressure air from compressor to the bottle preform and the line sliders to make a mold cavity can moving when the injection process ongoing and finished. To build the injection blowing tools, they are several main material that use, on the line sliders use the main material of low carbon steel type A36 ( 0,25% - 0,29% C) with strip and plate with force of 360 Ksi ( 250 MPa ), and the injection tools use the main material of Aluminium-alloy 4032 (Al, Si 12,5%, Mg, Cu, Ni) because it easy to make an model or profil with reasonable price. The main material on the shafts holder injector and blow pin use stainless steel 304 with max force of 515 MPa. The process to joint between the components are applying the welding model with fillet type and average on high of the neck weld 3 mm and use electrodes of RD-260 which E6013 electrode class with maximum strength 60 Ksi and use the bolt and nuts which average from material of SS 304 with size M6 - M16. In  the process injection, the ratio of large development due to the process injection ( BUR ) is 4 with the size of a bottle preform long 99 mm thick 2 mm and diameter 26 mm.
Pengaruh Penambahan Serbuk Tongkol Jagung pada Pembuatan Biobriket dari Pelepah Pisang dengan Perekat Tetes Tebu Dini Kurniawati; Noor Diansyah Januardi; Nur Subekhi
JMPM (Jurnal Material dan Proses Manufaktur) Vol 2, No 1 (2018): Juni
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.2115

Abstract

Biomass can be used as an alternative fuel such as making biobriquettes. This study aimed to determine the effect of the comparison of mixtures of banana midrib and corn cobs, the effect of molasses used to obtain biobriquettes according to standards, and the results of chemical and physical analysis of its briquettes. The material used in this study were banana midrib and corn cobs which use molasses as an adhesive. The composition variations used were 100: 0 to 10:90. The material was dried to the appropriate moisture content then burned to become charcoal. Those charcoal mixed together according to the composition and were added by 50 grams of molasses. It were pressed and dried. Testing of biobriquette characteristics was carried out by testing moisture content, compressive strength, density, ash content, and calorific value. The result of it was the composition of the material 10:90 with a value of 11.18% moisture content, compressive strength 7,03 kg/cm2, density 0,70 g/cm3, ash content 9,18%, calorific value 4724 kal/g.
Optimalisasi Parameter Proses Injeksi Menggunakan Simulasi Moldflow untuk Meminimalkan Cycle Time dan Eliminasi Short Shot pada Produk Tempat M. Choirul Anwar; Cahyo Budiyantoro; Thoharudin Thoharudin
JMPM (Jurnal Material dan Proses Manufaktur) Vol 2, No 1 (2018): Juni
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.2121

Abstract

Plastic materials in the manufacture of food and household appliances have been widely used by the public. Various forms and functions have been made, one of which is using an injection molding machine. With an injection molding machine a packaging design or a fairly complex household appliance can be produced. One of the products that the market is interested in is a traditional rice container. This traditional rice container product uses polypropylene material. In this rice container production process there are several problems, namely the cycle time that is too long and the occurrence of short shots on the product. Of these problems, simulations and optimizations that have been carried out provide better results. Optimization carried out in this study is the process parameters using moldflow simulation. Confirmation based on S / N Ratio analysis, ANOVA on the best parameters, after the optimization simulation is obtained from the previous time 172.59 seconds to 23.88 seconds. Short shot and cavity weight obtained increased from 96.99 grams to 99.36 grams.
Physical and mechanical properties of semi-automatic MIG welding of AA5083H116 materials Mudjijana Mudjijana
JMPM (Jurnal Material dan Proses Manufaktur) Vol 2, No 1 (2018): Juni
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.2116

Abstract

Metal inert gas (MIG) welding speed can be carried out manually for complicated components and can also be controlled using computer numerical control (CNC). The purpose of the research is to investigate the effect of CNC welding speed on physical and mechanical properties of AA5083H116. AA5083H116 base metal, ER5356 electrodes, welding speeds of 8, 10, 12 mm/s, current of 120 A, voltage of 19 V, filling speed of 27 mm/s, argon gas rate of 15 liter/minute were used. Distortions after welding were measured using dial indicators, thermal cycles was recorded using type-K thermocouple using National instruments NI USB-9162 apparatus connected to a CPU. The physical properties was analyzed using SEM and EDS for only the best mechanical properties, and the mechanical properties were evaluated using Vickers microhardness, and tensile and bending universal testing machine. The results show that at the welding speed of 8 mm/s automatic regulated was the best mechanical properties compare to previous study at the welding speed of 10 mm/s manually regulated. However, SEM images show that there were several micro cracks at its grain, and several magnesium precipitates can be noticed from the EDS analysis.
Pengaruh Konsentrasi dan Waktu Aktivasi Katalis Palladium pada Electroless Plating Nickel Permukaan Plastik ABS Muhammad Budi Nur Rahman; Sunardi Sunardi; Auliandi Luthfi Wibisono; Bayu Anggara
JMPM (Jurnal Material dan Proses Manufaktur) Vol 2, No 1 (2018): Juni
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.2122

Abstract

ABS plastic is widely used for automotive components and interior design because of its lightweight, easily shaped, strong, but low hardness, no friction-resistant, and heat resistant. Electro less plating is a method of metallization before electro plating to improve the quality and appearance. To get a good bond between plastic and metal is necessary to the activation of the palladium which is influence by concentration, temperature and activation time. The research aims to determine the influence of the palladium solution concentration and activation time of the electroless nickel plating process on surface roughness, layer thickness, hardness and wear resistance of ABS plastic. The concentration of palladium was prepared at 3%, 5% and 7% in HCl solution (37%). The activation time was carried out during 4 to 12 minutes. The research shows that those parameters increase wear resistance of the surface. In addition the activation time parameter is also found to increase layer thickness and roughness value of the specimens. Yet, those parameters are not found to affect significantly on its hardness value.
Karakterisasi Permukaan Pada Aluminium Anodized-Dyed dengan Pewarna Alami Kunyit Ahmad Muslim; Aris Widyo Nugroho
JMPM (Jurnal Material dan Proses Manufaktur) Vol 2, No 1 (2018): Juni
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.2117

Abstract

Dyeing on anodizing process can be done with chemical or natural dyes. Indonesia has a variety of useful plants as a natural dye, one of which is turmeric. The purpose of this research is to know the effect of turmeric dye concentration variation on color brightness, macro structure, surface roughness, oxide layer thickness and wear rate on aluminum anodizing result. Aluminum plate with 1.5 mm thick was cut with size of 50 x 30 mm. The plate was performed anodizing process with 2 amperes of current, 12 volt of voltage for 30 minutes. Dyeing was carried out using commercially available turmeric powder. The dyeing process used variations in concentration of 10, 20 and 30 gram per liter of water at temperature of 90-97 ° C for 30 minutes. The coloring results were tested for color brightness by image analysis software, macro structure test and oxide layer thickness using optical microscope and surface roughness test using roughness tester and wear test with Ogoshi method. Test results showed the effect of turmeric concentration variation concentration on color brightness, macro structure, surface roughness and wear rate. The highest color brightness (RGB) is obtained on a variation of turmeric concentration of 10 gram / liter. The surface macro structure showed the existence of homogeneous pores. The most uniform colored staining is obtained on the variation of turmeric concentration of 30 grams / liter. Whilst the highest surface roughness was found on aluminum which had been anodized with variation of turmeric concentration of 30 gram / liter with the value of 1,344 μm, its wear value presents the lowest of 2.07 x 10-10 mm2 / kg. The concentration variation of the dye solution did not affect the thickness of the resulting oxide layer.

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