710 results
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Journal Article
EFFECT OF ANNEALING ON MICROSTRUCTURE AND HARDNESS OF FeNiCo ALLOYS SYNTHESIZED BY MECHANICAL ALLOYING
Alloys based on Fe-Ni-Co are categorized as special nickel-based superalloys with braod application as magnetic sensors in electric motors, recording devices as well as for vehicle engine parts. The purpose of this study was to determine the physical and mechanical properties of Fe-Ni-Co materials…
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Journal Article
ANALISIS PENGGUNAAN SISTEM AKTUATOR PNEUMATIK BERTENAGA SURYA TERHADAP KINERJA MESIN PEMOTONG NANAS
The main objective of this research is to determine the overall performance value of the pneumatic actuator system on a solar-powered pineapple cutting machine. The research methods used are literature study and experimental laboratory. The laboratory experimental method is very suitable to be…
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Journal Article
ANALISIS BENTUK PENAMPANG BULAT, SEGI EMPAT DAN BULAT BERONGGA TERHADAP FATIGUE FAILURE DAN TEGANGAN PADA MATERIAL BAJA ST 60
Metal fatigue is a problem in the use of metals in their applications, especially when they are exposed to cyclic or repetitive loads. This study analyzes the effect of round, rectangular and spherical cross-sections on fatigue failure of ST 60 steel. By providing a fatigue test load of 150 N and a…
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Journal Article
MECHANICAL PROPERTIES OF STEEL AISI 1045 VARIATION OF AUSTENITIZATION HOLDING TIME IN THE QUENCHING-TEMPERING PROCESS WITH ICE WATER MEDIA
AISI 1045, Medium-carbon steel is commonly used as machining components like bulldozer bushings and widely used in construction equipment such as hammerheads. Hence, it needs good hardness and impact resistance. The methods to achieve these properties are through a heat treatment process called…
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Journal Article
ANALISIS KONSUMSI ENERGI LISTRIK PADA PEMBANGUNAN NUWSP BIYONGA KABUPATEN GORONTALO
The need for electrical energy today is starting to increase along with the increase in population and rapid development, but inversely proportional to the progress or innovations in increasing renewable energy. Given that this renewable energy can be developed continuously and operational costs…
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Journal Article
PENINGKATAN PRODUKSI BAHAN BAKAR HIDROGEN DENGAN BANTUAN NATURAL SURFACTANT PADA PROSES WATER SPLIT
Hydrogen is an alternative fuel due to its environmental friendliness and abundance. Hydrogen can be produced through water-splitting technique, in which the Oxygen (O2) and Hydrogen (H2) are separated. Water electrolysis is one of many causes of water-splitting that effectively results H2 with…
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Journal Article
STUDI KARAKTERISTIK BRIKET ARANG BIOMASSA BERBASIS SCREW PRESS
Biomass is material originating from plants that can be used as a source of energy, fuel, or a substitute for products and materials originating from fossils. One of the raw materials for biomass briquettes, an energy alternative, is coconut shells. To increase briquette production and simplify the…
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Journal Article
PENGARUH VARIASI BENTUK FLAME HOLDER TERHADAP KARAKTERISTIK NYALA API PADA PEMBAKARAN MESO SCALE COMBUSTOR
This study used an experimental method by directly observing the object under study. The independent variables in this study include the geometry of the flame holder on the meso-scale combustor, airflow, and fuel discharge. The research data were analyzed and displayed in graphical form as well as…
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Journal Article
RANCANG BANGUN MODEL PEMBANGKIT LISTRIK TENAGA MIKRO HIDRO (PLTMH) MENGGUNAKAN PADDLE BREAST WHEEL
The need for electrical energy is increasing along with technological advances. In addition to the large population in an area, the variable economic activity of the population, which continues to increase to meet their daily needs, also has an impact on increasing the need for electrical energy…
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Journal Article
KUAT BENDING, FRAKTOGRAFI, DAN STRUKTUR MIKRO HASIL 3D PRINTING BERBAHAN PLA (POLYLACTIC ACID) - TITANIUM
Manufacturing technology has experienced significant progress with various innovations, including 3D printing. In this study, an innovation was made using a filament made of PLA 60% and titanium 40%. Bending tests are carried out to determine the combination of 3D printing parameters that can…
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Journal Article
REVIEW ON RAMS ANALYSIS FOR RAILWAY VEHICLES WITH POTENTIAL APPLICATION IN RAILWAY SYSTEM OF INDONESIA
Railway vehicles are critical for ensuring the reliability and safety of trains, and their complexity has grown with technological advancements. RAMS analysis (Reliability, Availability, Maintainability, and Safety) has become a popular method for assessing the functional requirements of these…
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Journal Article
REKAYASA DESAIN CIRCULAR HYBRID CRASH BOX UNTUK PENINGKATAN PERFORMA KELAYAKAN TABRAK
In previous studies, hybrid crash boxes have been developed because it show better energy absorption characteristics. Circular hybrid crash box combine the advantages of low-density of composite with stable deformation of metal provide a potential energy absorption device. Tests were carried out…
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Journal Article
PENGARUH INTERLAYER PASTA (ZINC+TAPIOKA) PADA SAMBUNGAN FSSW MATERIAL ALUMUNIUM PADUAN
Aluminum metal is widely applied in the industrial sector because it has many advantages. FSSW welding is a method that can be used to join aluminum. The microstructural test results show the flow distribution of the zinc interlayer in the welding area. The flow of zinc material looks dominant in…
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Journal Article
DESIGN AND STRESS ANALYSIS OF RX-122 ROCKET MOTOR TUBE USING NUMERICAL METHOD
The RX-122 rocket is an experimental rocket series developed by the Technology Centre for Rocket-BRIN. The lightweight design of the RX-122 rocket motor tube is an essential requirement for improving the rocket's flight performance. The objective of this research is to identify a rocket motor tube…
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Journal Article
PENGARUH SUHU LELEH MATRIK DAN PERLAKUAN CRYOGENIC SERAT KARBON TERHADAP INTERFACIAL SHEAR STRENGTH CARBON FIBER REINFORCED POLYPROPYLENE
Sifat mekanik komposit termoplastik berpenguat serat karbon dipengaruhi kinerja ikatan antarmuka antara serat dengan matrik. Dalam penelitian ini parameter proses berupa suhu pencairan matrik dan perlakuan kriogenik serat karbon telah dioptimasikan dalam pembuatan filamen komposit untuk…
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Journal Article
DETERMINATION OF PROCESS PARAMETER FOR INJECTION MOLDING : A REVIEW
One of the most suitable methods for mass production of complicated shapes is injection molding due to its superior production speed and quality. Plastic injection is the process of forming products from plastic materials with variations in shape and size. Controlling the quality of plastic…
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Journal Article
DESIGN OF BAMBOO STICK POLISHING MACHINE WITH 12 TON/MONTH CAPACITY
Local bamboo stick products are still unable to compete with imported bamboo stick on the market due to the high cost of production. The production of bamboo stick has several stages, including cutting bamboo blades, removing bamboo skin, forming square blades, forming circle profiles, cutting…
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Journal Article
PERILAKU OKSIDASI ISOTERMAL PADUAN 68,5Fe-14Ni-9Al-7,5Cr-1Mo PADA TEMPERATUR 800, 900, DAN 1000°C
Extensive research has been conducted on high-temperature alloys for power generation, with chromium-forming ferritic iron as the primary basis for these materials. However, the practical applications of these materials are limited to temperatures below 800°C. This study addresses the development…
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Journal Article
ANALISIS EKSPERIMENTAL PERPINDAHAN PANAS PADA MENARA PENDINGIN TIPE PLAT DATAR BERTINGKAT
Cooling towers serve as an important tool in industrial settings to reduce heat in machines that use water and air as working media, this process involves hot water generated from the machine coming into direct contact with air resulting in a small portion of the water evaporating which then…
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Journal Article
ANALISIS KEKUATAN STRUKTUR SQUARE CHAMBER INJECTION MULTICASTING PYROGENIC IGNITER MENGGUNAKAN FINITE ELEMENT ANALYSIS (FEA)
It is necessary to analyze the structural strength of the square chamber component in the design of injection multicasting pyrogenic igniter to ensure that the structural components of the chamber are able to withstand loads from hydraulic piston pressure. Four square chamber configurations were…