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<![CDATA[APLIKASI STANDAR AWS UNTUK MENENTUKAN ACCEPTANCE CRITERIA PADA PENGELASAN SMAW MENGGUNAKAN NONDESTRUCTIVE TEST-ULTRASONIC TEST ]]>
<![CDATA[Endramawan, Tito]]>;
<![CDATA[Sifa, Agus]]>
<![CDATA[ TURBO [Tulisan Riset Berbasis Online] Vol 6, No 2 (2017): Desember 2017 ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Metro ]]>
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DOI: 10.24127/trb.v6i2.544
<![CDATA[Tujuan penelitian ini adalah menentukan spesimen uji tersebut bisa diterima berdasarkan aceptance criteria AWS. Penelitian ini menggunakan material mild steel dengan nilai kekerasan 135 HVN dengan ukuran 30 cm x 20 cm x 1,2 cm yang disambungkan dengan proses pengelasan SMAW posisi 3G butt joint dengan elektroda rooting LB 52U diameter 2,6 mm menggunakan arus 70 Amper dan tegangan 380 volt, sedangkan untuk filler menggunakan elektroda LB 5218 diameter 3,2 mm dengan arus 80 Amper dan tegangan 380 volt.Metode untuk menginspeksi hasil lasan menggunakan Non Destructive Test Ultrasonic Testing (NDT-UT) dengan blok standar V1 dan V2 sebagai reference block untuk proses kalibrasi. Probe yang digunakan berupa probe sudut 700 dengan frekuensi 4 MHz merk karl deutch sesuai dengan tabel 6.7 yang hasil pengelasannya merujuk tabel 6.2 tentang UT Acceptance-Rejection Criteria pada AWS D1.1/D1.1M:2010 menurut class indication. Hasil pengujian menunjukkan bahwa base material dari baja karbon rendah dengan kandungan 0,193%C dan 98,713%Fe dengan nilai kekerasan rata-rata 135,2 VHN. Hasil pengujian pada ketiga spesimen diatas menunjukkan bahwa class untuk dincontinuity di kategorikan pada class D berdasarkan nilai dari frekuensi gelombang (d) yang lebih dari +8 dB sehingga discontinuity yang ada harus di accepted tanpa melihat panjang atau lokasi-nya pada lasan. Apabila ada indikasi defect yang rejected maka tindak lanjutnya adalah dengan melakukan perbaikan dengan cara gouging atau digerinda pada bagian yang mengindikasikan adanya cacat tersebut dan kemudian dilas ulang.]]>
<![CDATA[Kekerasan Material Pasangan Elektroda (Cu) dan Lembaran plat (Fe) Pra Proses Spot Welding ]]>
<![CDATA[Sifa, Agus]]>;
<![CDATA[Endramawan, Tito]]>
<![CDATA[ Jurnal Teknologi Terapan Vol 2, No 1 (2016): Jurnal Teknologi Terapan ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Indramayu ]]>
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DOI: 10.31884/jtt.v2i1.21
<![CDATA[Las titik (spot welding) termasuk las tahanan listrik. Jenis ini merupakan metode yang paling banyak digunakan dan paling sederhana. Hasil proses pengelasan spot welding perlu diketahui secara detail karena akan berdampak pada kekuatan geser dan kekerasan hasil pengelasan, secara mekanik pasangan elektroda dan lembaran plat perlu diperhatikan tekanan elektroda pada lembaran plat, hal ini perlu reference sifat fisik kekerasan permukaan elektroda terhadap lembaran plat dan sebagai acuan awal pada pemilihan material pasangan elektroda dan lembaran plat dengan ketebalan 0,8 mm, maka perlu diketahui komposisi elektroda dan lembaran plat. Hasil uji pasangan material elektroda (Cu) dan lembaran plat (Fe), setelah dilakukan eksperimen uji spectrometric diperoleh bahwa elektroda memiliki kandungan Cu yang balance dan Lembaran plat memiliki kandungan Fe yang mendominasi namun memiliki Carbon kurang dari 0,25%, maka hal tersebut lembaran plat memiliki kategori karbon rendah, dan dari hasil uji kekerasan menunjukkan Elektroda memiliki nilai kekasaran 130 HV, hal ini menunjukkan bahwa elektroda kategori class 2 [10] dan lembaran plat memiliki kekasaran 128 HV, kecenderungan nilai kekasaran material elektroda lebih besar dari lembaran plat.]]>
<![CDATA[Design and Performance Test of Aluminum Melting Furnace fueled by Used Oil ]]>
<![CDATA[endramawan, tito]]>;
<![CDATA[sifa, agus]]>;
<![CDATA[suwandi, dedi]]>;
<![CDATA[dionisius, felix]]>
<![CDATA[ TURBO [Tulisan Riset Berbasis Online] Vol 12, No 2 (2023): TURBO: Jurnal Program Studi Teknik Mesin ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Metro ]]>
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DOI: 10.24127/trb.v12i2.2402
<![CDATA[Waste is a major problem in the world and Indonesia. Used oil is one of the liquid wastes produced by machines, both in large industrial and private vehicle engines. Handling this waste oil can be done in various ways, one of which is by using it as a liquid fuel with constant heat treatment. One of the applications of this burning is used in metal smelting equipment to melt metal waste in the community, especially those that have been collected by collectors both in the Indramayu region and Cirebon 3 region. In the design process, a simulation of the safety of the material used is carried out using solid work software using A36 steel. For the performance test, several variations were carried out including the input distance of used fuel oil at a distance of 5 cm, 10 cm and 15 cm and the opening of the used oil tap as fuel in the form of , and 1. The test was carried out using fuel oil to melt 1 kg of aluminium The results of the flow simulation process obtained data with a distance of 10 cm where the airflow is sprayed spread out in the burner and the optimal parameter at the time of smelting is that with a tap opening it will be more effective in fuel use and aluminium smelting time.]]>
<![CDATA[Analisis Bentuk dan Jumlah Bilah pada Fan Chip Pendingin Portable untuk Proses Drilling Logam dengan Flow Simulation ]]>
<![CDATA[Sifa, Agus]]>;
<![CDATA[Syahfitri, Shofi]]>;
<![CDATA[Suwandi, Dedi]]>
<![CDATA[ Journal of Applied Mechanical Technology Vol 2 No 1 (2023): Journal of Applied Mechanical Technology (JAMET) ]]>
Publisher : <![CDATA[Politeknik Negeri Indramayu ]]>
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DOI: 10.31884/jamet.v2i1.31
<![CDATA[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.]]>
<![CDATA[Pengaruh Pelapisan Nikel pada Tool End Mill HSS Terhadap Nilai Kekerasan dan Temperature Proses Milling Alumunium 6061 ]]>
<![CDATA[Sifa, Agus]]>;
<![CDATA[Endramawan, Tito]]>;
<![CDATA[Sukardi, Casiman]]>;
<![CDATA[Aryadi, Haerul]]>
<![CDATA[ Journal of Applied Mechanical Technology Vol 2 No 2 (2023): Journal of Applied Mechanical Technology (JAMET) ]]>
Publisher : <![CDATA[Politeknik Negeri Indramayu ]]>
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DOI: 10.31884/jamet.v2i2.48
<![CDATA[The machining process of dry machining milling method is a machining process without additional coolant, but this method has several problems during the process and after the machining process, namely Tool temperature can easily rise and has a major impact on tool wear, so the purpose of this research is to develop a dry machining method with variations tools that are coated with nickel, by utilizing the properties of nickel material that can withstand heat and corrosion, therefore a nickel coating is used on the tool which will affect the temperature parameters of the tool. The coating method that will be carried out is the electroplating method. This method is a metal coating method which is often called electrodeposition, or the process of depositing the coating metal on the base metal using electrolysis. This research was carried out using experimental testing methods to obtain tool temperature parameters and hardness on the tool coating. The voltage used in the electroplating process is 6 V/ 0.7 A for 5, 10, and 15 minutes to produce a nickel layer thickness of 0.024 mm in 15 minutes, so every 5 minutes the layer is 0.08 mm. The experimental testing process used the HSS tool Ø 12 / 4 F and a aluminum 6061 workpiece which resulted in an intermediate temperature that was not coated with nickel (uncoated) at 3 mm feeding spindle speed 3000 rpm the temperature reached 73.6 ºC while that which was coated with nickel (coated) the temperature only reached 58.6 ºC, and get an average hardness value on the nickel layer, which is 279.9 Hv]]>
<![CDATA[Effect of Solution Concentration and Anodizing Coating Time on Hardness and Thickness Coating Of 7075-O Aluminum Alloy ]]>
<![CDATA[Endramawan, Tito]]>;
<![CDATA[Sifa, Agus]]>;
<![CDATA[Suwandi, Dedi]]>;
<![CDATA[Permana, Dudung Nana]]>;
<![CDATA[Amat, Mohammad Azwar]]>;
<![CDATA[Sukroni, Sukroni]]>;
<![CDATA[Dionisius, Felix]]>;
<![CDATA[Sukardi, Casiman]]>
<![CDATA[ Jurnal Internasional Penelitian Teknologi Terapan Vol 5 No 1 (2024): February 2024 ]]>
Publisher : <![CDATA[Bandung State Polytechnic (Politeknik Negeri Bandung) ]]>
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DOI: 10.35313/ijatr.v5i1.136
<![CDATA[One of the materials used in ship propellers is aluminum alloy. The advantages of aluminum are that it is easy to cast and relatively resistant to corrosion. This research aims to determine the effect of heat treatment and the effect of variations in the concentration of H2SO4 and immersion time in optimal of the anodizing process on the hardness value of 7075-O aluminum alloy (as-cast aluminum alloy). The method used is solution heat treatment at a temperature of 490ºC with a holding time of 6 hours, quenching using water or oil, with artificial aging at a temperature of 120ºC with a holding time of 24 hours. In the anodizing process, a sulfuric acid solution with various concentrations of 10%, 15%, and 20% with variations in immersion time of 10, 15, and 20 minutes. The results of vickers hardness test on heat-treated specimens with water quenching accompanied by artificial aging is 137.54 HV, it is increased by 47.44%. While the results of the vickers hardness test after anodizing is 213.09 HV, it is increased by 128.42%. Where the optimum hardness value was achieved at a concentration of 15% H2SO4 and an immersion time of 20 minutes. The coating thickness is equal to 25.79 µm.]]>
<![CDATA[PENERAPAN TEKNOLOGI MESIN PENCETAK BAKSO BERBASIS PNEUMATIK PADA UMKM ]]>
<![CDATA[Suwandi, Dedi]]>;
<![CDATA[Sifa, Agus]]>;
<![CDATA[Supriatun, Evi]]>
<![CDATA[ Jurnal Pengabdian kepada Masyarakat (NADIMAS) Vol 2 No 2 (2023): Jurnal Pengabdian kepada Masyarakat (Nadimas) ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.31884/nadimas.v2i2.49
<![CDATA[Meatballs are one of the favorite foods of Indonesian people. The naming of meatballs depends on the place where they are made, the meat used, the way they are served, the way they are made, and their size and shape so the names vary greatly. Meatballs are generally round with an average diameter of 15-35 mm. So far, the process of making meatballs in the community still uses manual methods, by forming the meatball dough using hands and a spoon. Hold the dough in your hands and then knead it so that it comes out between the holes of your index finger and thumb. The dough that comes out is round, then scooped out using a spoon and put into a container filled with hot water. This manual meatball molding process requires skill, and patience and has the danger of being exposed to hot water so not everyone can do it. With this opportunity, a meatball-making machine with a pneumatic system was created. This machine uses a power source from a compressor of at least 10 bar which drives two pneumatic systems. The first pneumatic system moves the TBC 40-400 pneumatic cylinder piston which presses the dough down into the mold. The second pneumatic system drives two 25X300 pneumatic cylinder pistons. The combination of the two pneumatic systems is capable of producing 60 meatballs per minute with a diameter of 30 mm.]]>
<![CDATA[PENERAPAN MESIN HOT PRESS SEKAM PADI UNTUK PEMBUATAN PARTICLE BOARD PALLET DI DESA TENAJAR KEC.KERTASEMAYA- INDRAMAYU ]]>
<![CDATA[Sifa, Agus]]>;
<![CDATA[Badruzzaman, B]]>;
<![CDATA[Mahfud, M]]>;
<![CDATA[Selin, Melia]]>;
<![CDATA[R, Rachmatullah]]>
<![CDATA[ Jurnal Pengabdian kepada Masyarakat (NADIMAS) Vol 2 No 2 (2023): Jurnal Pengabdian kepada Masyarakat (Nadimas) ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.31884/nadimas.v2i2.55
<![CDATA[Indramayu district. After harvest, many farmers burn straw and rice husks, this produces air pollution and has a detrimental impact on the environment. Rice husks can be used as particle boards and have been developed so that they can be used as an alternative material for insulators, especially for cold storage. The process of making particle board is done by molding rice husk powder through a heating and pressing process. The pressing process on a hot press machine uses a pneumatic system and the heating process uses a heater. The process of making particle board using a hot press machine is carried out using an automatic heating and pressing system. The perfect temperature and time is 175°C and 15 minutes.]]>
<![CDATA[PENERAPAN TEKNOLOGI MESIN PEMISAH KULIT ARI KEDELAI UNTUK MENINGKATKAN KAPASITAS PRODUKSI UMKM KERIPIK TEMPE ]]>
<![CDATA[Suwandi, Dedi]]>;
<![CDATA[Sifa, Agus]]>;
<![CDATA[Endramawan, Tito]]>
<![CDATA[ Jurnal Pengabdian kepada Masyarakat (NADIMAS) Vol 3 No 1 (2024): Jurnal Pengabdian kepada Masyarakat (Nadimas) ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.31884/nadimas.v3i1.57
<![CDATA[Keripik tempe merupakan produk turunan dari kacang kedelai yang kaya akan gizi dan banyak manfaat untuk dikonsumsi. Permasalahan yang dihadapi produsen keripik tempe sebagian besar proses pembuatannya masih menggunakan metode manual. Contohnya proses pengupasan kacang kedelai dimana biji kedelai dipisahkan dari kulit arinya. Proses ini biasanya dilakukan oleh karyawan menggunakan tangan dan sendok. Proses pengupasan dilakukan pada saat kedelai masih hangat setelah kedelai direbus. Proses ini sangat penting karena jika kulit ari tidak dibersihkan maka akan mempengaruhi kualitas keripik tempe yang dihasilkan, keripik tempe akan memiliki rasa asam dan mudah basi. Solusi yang diberikan yaitu dengan membuat mesin pengupas kulit ari kedelai single roll. Mesin pengupas kulit ari kedelai single roll digerakan oleh motor listrik 1 phase 0,5 Hp, 1400rpm. Putaran motor listrik tersebut diturunkan menjadi 280 rpm yang menggerakan roll stanless steel bergelombang. Putaran roll menggilas kedelai yang turun dari hopper input, kemudian dibagian depan roll terdapat pemisah kulit ari dan kedelai yang sudah terkupas. Kulit ari akan turun ke bawah hopper kulit sedangkan kedelai terkupas akan keluar menuju hopper output. Kapasitas mesin pemisah kulit ari kedelai mampu mengupas 1 kg kedelai per satu menit. Semua kedelai terkupas 100% dengan 65% kulit terpisah ke bagian hopper kulit, kemudian masih terdapat 35% kulit yang terbawa ke hopper output bersama kedelai yang terkupas. Dengan mesin tersebut mitra pengguna dapat mengurangi waktu pengupasan dari 120 menit menjadi 30 menit per 100 kg.]]>
<![CDATA[ANALISIS PERFORMA PROTOTIPE SISTEM PEMBANGKIT DAYA LISTRIK TERINTEGRASI PADA RODA KENDARAAN LISTRIK ]]>
<![CDATA[Muhammad Luthfi]]>;
<![CDATA[Luthfi, Muhammad]]>;
<![CDATA[Sifa, Agus]]>;
<![CDATA[Fajri, Ade Ruli Nurul]]>;
<![CDATA[Alfiansyah, Agil]]>
<![CDATA[ Jurnal Rekayasa Mesin Vol. 24 No. 2 (2024): Jurnal Rekayasa Mesin ]]>
Publisher : <![CDATA[Universitas Sriwijaya ]]>
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DOI: 10.36706/jrm.v24i2.1302
<![CDATA[The increasing use of electric bicycles and motorcycles in Indonesia has opened up significant opportunities for advancements in this type of vehicle, including the utilization of wheel rotation during operation. This research aims to evaluate the performance of a prototype electric power generation system directly installed within the wheels of electric bicycles or motorcycles. Quantitative research data were collected using experimental methods by measuring voltage, electric current, and battery charging time derived from the generated current under varying wheel rotation speeds and the number of stator coil poles. From the system testing results, the highest average voltage and current, along with the shortest battery charging time, which were 11.64 V, 2.29 A, and 20 minutes, respectively were achieved under conditions with the maximum number of stator poles and the highest rotation speed of 12 stator poles and a rotational speed of 1119.8 rpm respectively, which was equivalent to a travel speed of 73.88 km/h. In addition, the effect of addition of poles to the generated electricity power is not as significant as the change of the wheel rotation speed.]]>
