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Tuparjono .
Politeknik Manufaktur Negeri Bangak Belitung
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BUDI DAYA IKAN LELE DI KECAMATAN SUNGAILIAT DAN KECAMATAN MERAWANG KABUPATEN BANGKA PROPINSI KEPULAUAN BANGKA BELITUNG Silalahi, Parulian; Tuparjono, Tuparjono
Jurnal Bakti Masyarakat Indonesia Vol 2, No 1 (2019): Jurnal Bakti Masyarakat Indonesia
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (741.187 KB) | DOI: 10.24912/jbmi.v2i1.4311

Abstract

Mitra yang menjadi objek PKM ini adalah pengusaha mikro yang bergerak dalam bidang budidaya ikan lele yang berlokasi di Kecamatan Sungailiat Bangka dan Kecamatan Merawang . Permasalahan pengembangan usaha yang dihadapi oleh peternak lele yang menjadi mitra dari tim pelaksana program pengabdian ini pada hasil ternaknya mengalami pasang surut dan cenderung menurun. Usaha ternak yang dijalani oleh kedua mitra tidak berkembang optimal karena kurangnya keterampilan dalam budidaya ikan, sehingga dikawatirkan tidak dapat melanjutkan usahanya dan kemungkinan terjelek adalah usaha mitra akan tutup. Tujuan dari kegiatan PKM ini adalah agar mitra memiliki keterampilan dan keahlian di dalam perawatan ikan, memiliki keterampilan dalam pemgembangan bibit lele, memiliki keterampilan untuk membuat pakan lele secara mandiri, serta memiliki keterampilan dalam manajemen usaha dan pengelolaan permodalan. Hasil dari pelaksanaan program pengabdian pada mitra menunjukkan bahwa hasil produksi hasil panen dapat meningkat, telah memiliki keterampilan dalam budidaya ikan, mengembangkan bibit lele serta mampu mengelola hasil usaha yang dijalankan oleh kedua mitra.
Pengaruh Variasi Arus pada Pengelasan Baja ST37 Menggunakan Las Shield Metal Arc Welding (SMAW) dengan Posisi Pengelasan 3F Ferenza, Oktovalen; Tuparjono, Tuparjono; Sugiyarto, Sugiyarto
Syntax Idea Vol 3 No 8 (2021): Syntax Idea
Publisher : Ridwan Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-idea.v6i8.1432

Abstract

Pengelasan merupakan bagian yang sangat penting dalam pengembangan dan pertumbuhan industri karena memang memiliki peranan dalam rekayasa, reparasi dan konstruksi. Pengelasan SMAW (Shielded Metal Arc Welding) adalah proses penyambungan dua buah material atau lebih yang terbungkus menggunakan elektroda sebagai energi panas untuk mencairkan material tersebut. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh dan cacat las yang timbul dengan variasi arus sehingga didapatkan hasil pengelasan yang optimal dari 3 amper yang diuji dengan menggunkan elektroda E6013 diameter 3,2 pada sambungan fillet posisi pengelasan 3F. Penelitian ini menggunakan metode eksperimental dengan bahan yang digunakan baja St 37 dengan variasi arus 90A, 100A, dan 110A. Dari penelitian yang dilakukan tidak didapatkan hasil pengelasan yang optimal dimana dari masing-masing amper yang diuji masih terjadi cacat las. Cacat yang ditimbulkan pada ketiga amper tersebut disebabkan busur, sudut elektroda, dan arc length yang melebihi batas normal dan juga dipengaruhi kecepatan pengelasan. Dari ketiga variasi amper yang digunakan didapatkan hasil pengelasan yang dominan tidak terjadi cacat las yaitu pada amper 90, sedangkan pada kaki las amper 100 menunjukan hasil kaki lasan yang baik.
PENGARUH AMPER TERHADAP CACAT LAS PADA PENGELASAN BAJA LUNAK DENGAN MENGGUNAKAN PENGELASAN SMAW POSISI PENGELASAN 2F ADHIE SAPUTRA; Tuparjono; Sugiyarto
Manutech : Jurnal Teknologi Manufaktur Vol. 13 No. 01 (2021): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (337.562 KB) | DOI: 10.33504/manutech.v13i01.167

Abstract

Abstract In the SMAW welding process, the problem of welding defects is still often found. This can be the result of using an improper welding ampere. In this study, welding testing was carried out by utilizing variations in the use of a welding amper according to the electrode diameter. The welding process uses low carbon steel St 37 with 2F welding joints. The electrode used was AWS A5.1 E6013 with a diameter of 3.2 mm with a variation of amperage 85, 95 and 115. From the experimental results, it was found that for Amperes 85, it was found that the porosity welding defect and the welding leg showed poor results with a thickness of 5.7 mm and at Amperes 115 welding results show uneven welds and weld feet show good results compared to amperage 85 and 95 with a thickness of 6.1 mm. Observation of the welding arc at times (seconds) 10, 13, 15 and 17 for the amperage used, namely 85, 95 and 115, is obtained, the amperage of 85 shows the phenomenon of the welding arc movement is not normal at 10 and 13 seconds, at that second the arc length height is more than normal, which is 5 mm and 4.9 mm, the resulting defect is porosity. At 15 and 17 seconds, there is no defect in the welds. Amper 95 and 115 show the phenomenon of normal welding arc movement at 10, 13, 15 and 17 seconds and no defects occur. Observation of the results of welds on the weld toe found that, in the three amperage variations, there was a phenomenon that was not asymmetrical as the weld toe. The welding feet are not as symmetrical as the welding speed is different at layers 2 and 3.
Rancangan Mesin Pembelah Buah Pinang Dengan Dua Mata Potong Rodika Rodika; Tuparjono Tuparjono; Budi Otomo; Riska Ade Febryani
Manutech : Jurnal Teknologi Manufaktur Vol. 10 No. 02 (2018): Manutech : Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1029.79 KB) | DOI: 10.33504/manutech.v10i02.72

Abstract

Betel nut palm plant is one of the many benefits and efficacy, especially seeds. Areca nuts are widely used as the main raw material in the process of making drugs, cosmetics, slimming, snacks, sweets, and coffee. Betel nut processing into betel nut is still constrained by the tool is still modest, are still using wood beams repose knife to split betel nut into two parts. To overcome these problems needed betel nut splitter machine with a capacity of 250 kg / h. This engine design is expected to help farmers during the process of betel nut processing into dried betel nut. The working principle of betel nut splitter machine originated from an electric motor that produces rotation is forwarded to the reducer and to the cutting blade associated with two gears. Betel nut is inserted through the insertion funnel towards the rotor has 4 channels / trench, and rotor spinning and crashing betel nut rotating blades reversed so the rotor besidesbetel nut split into two parts. Shaft rotation speed at the eye-piece and carrier rotor shaft is 9.32 rpm, the rotation speed is obtained from the ratio gearbox and pulley on the engine splitter ratio. With the machine is expected to help farmers to cultivate betel nut, so the work is lighter, faster and may prevent accidents. Shaft rotation speed at the eye-piece and carrier rotor shaft is 9.32 rpm, the rotation speed is obtained from the ratio gearbox and pulley on the engine splitter ratio. With the machine is expected to help farmers to cultivate betel nut, so the work is lighter, faster and may prevent accidents. Shaft rotation speed at the eye-piece and carrier rotor shaft is 9.32 rpm, the rotation speed is obtained from the ratio gearbox and pulley on the engine splitter ratio. With the machine is expected to help farmers to cultivate betel nut, so the work is lighter, faster and may prevent accidents.
Peningkatkan Penetrasi Pengelasan pada Las TIG (Tungsten Inert Gas) Menggunakan Pengaruh Medan Elektromagnetik Ario Sunar Baskoro; Tuparjono .; Erwanto .; Winarto .
Jurnal Teknik Mesin (Sinta 3) Vol. 14 No. 1 (2013): APRIL 2013
Publisher : Institute of Research and Community Outreach, Petra Christian University

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Abstract

Pengelasan Tungsten Inert Gas (TIG) adalah salah satu pengelasan yang memiliki kelebihan dari berbagai macam proses pengelasan yang membutuhkan kepresisian dan mutu yang baik. Pengelasan TIG banyak digunakan untuk pengelasan pelat tipis karena pem¬bentukan busur yang kecil dan area yang dipanasi menjadi minimal sehingga mengurangi masalah penggunaan energi listrik dan distorsi pada pelat. Pada penelitian ini dilakukan percobaan dengan meletakkan solenoid magnetik di sekeliling obor las TIG. Pemanfaatan medan elektromagnetik ini dilakukan pada keadaan statis dan dinamis. Fenomena yang terbentuk akan diamati dengan menggunakan kamera sehingga diketahui pengaruh efek medan elektromagnetik bagi efiensi pengelasan pada saat pencairan logam las. Hasil dari penelitian menunjukkan pengaruh dari efek elektromagnetik pada pembentukan busur yang lebih stabil dan mengecil dengan penetrasi las yang dalam. Pengelasan ini juga menggunakan daya yang lebih rendah sehingga didapatkan efisiensi pemakaian energi listrik dan membatasi pemanasan yang lebih tinggi.
PENGARUH AMPER LAS PADA PENGELASAN BAJA LUNAK DENGAN PENGELASAN SMAW PADA POSISI PENGELASAN 4F Muhammad Tegar Dwicak Sono Egar; Tuparjono Tuparjono; Muhammad Haritsah Amrullah
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 1 (2021): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

Shielded Metal Arc Welding is one of the most widely used welding in welding work because it is easier and cheaper than other electric arc welding. In welding, welding defects often occur, welding defects are triggered by the use of amperes, welding speed, and the movement of the welding arc. In this study, the use of various amperes will be carried out, intended to determine which amperage is more optimal so that it can eliminate welding defects that occur. Experiments were carried out with the same welding parameters using different amperes, namely five samples of 85 ampere welding, five samples of 95 amperage welding, 5 samples of 105 ampere welding. The phenomenon of arc movement, welding speed will be observed using a camera so that its effect on the welding results is known. This study did not get the results of the use of the most optimal welding current so that the purpose of this study was not achieved, where the purpose of this study was the use of the most optimal welding current at the 4F welding position so as to eliminate welding defects that occurred in the SMAW welding. In the results of this study, it was found that there were welding defects in each variation of amperage used, namely amperes 85, amperes 95, amperes 105.
ANALISIS UJI BENDING PADA PENGELASAN BAJA ST37 MENGGUNAKAN LAS SMAW (SHIELD METAL ARC WELDING) DENGAN POSISI PENGELASAN 1G Rahmat Maulid; Tuparjono Tuparjono; yuli Dharta
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

The welding process is the process of joining two or more metal materials in one unit in the presence of heat energy, the heat energy generated from the welding process can affect the results of the weld. In this study, the parameters used are variations in welding current and the number of layers and passes, the welding current used is 65A penetration, 95A fill-capping, 65A penetration, 115A fill-capping, 65A penetration, 125A fill-capping and the number of layers and passes required. used are 4 layer 7 pass and 4 layer 9 pass with DCEP (Direct Current Electrode Positive) polarity. In this study, a bending test analysis was carried out on ST37 steel welding using SMAW (Shield Metal Arc Welding) welding with a welding position of 1G. The purpose of this study was to determine the compressive strength of ST37 steel after the SMAW welding process with bending testing. The method used in the bending test uses the three point bending method. From the results of the bending test, the highest compressive load strength occurred at a welding current of 65A penetration, 125A fill-capping with 4 layers 7 passes, with a suppression load of 75.8kg.
ANALISIS UJI IMPAK PADA PENGELASAN BAJA ST37 MENGGUNAKAN LAS SHIELD METAL ARC WELDING (SMAW) DENGAN POSISI PENGELASAN 1G Welcy Fratama; Tuparjono Tuparjono; Erwanto Erwanto
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

Welding is the process of joining two or more metal materials into a single unit in the presence of heat energy. SMAW (Shielded Metal Arc Welding) welding is the process of joining two or more materials using wrapped electrodes as heat energy to melt the material. In SMAW welding there is the use of layers and passes. In this study, welding with variations of pass will be carried out using SMAW welding on St37 steel with 1G welding position. The pass variations used in welding are 6 passes, 7 passes, and 8 passes. The electrodes used were 2.6 mm diameter E7016 and 3.2 mm diameter E7018 electrodes. To determine the impact of pass variations on the welding results, an impact test will be carried out. From the results of research that has been done that welding with a small number of passes has a better amount of energy than welding with a large number of passes. Likewise for the impact price, welding with a small number of passes has a better impact price than welding with a large number of passes.
PENGARUH NYALA API PADA LAS OXY-ACETYLENE TERHADAP KEKUATAN IMPAK PADA PROSES BRAZING BAJA KARBON RENDAH Muhammad Naufal; Tuparjono Tuparjono; Rodika Rodika
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

Brazing is a method of joining metal materials through a heating process using an adhesive or filler that has a lower melting point than the melting point of the material to be joined. Oxy-acetelyne welding is a manual welding process where the metal surface to be joined is heated until it melts by an acetylene gas flame through the combustion of C2H2 and O2 with or without filler metal where the joining process is without pressure. In this study using an experimental method. The purpose of this study was to determine the impact strength of low carbon steel after the brazing process with variations in flame and root gap. The variations of the flame used are oxidation flame, neutral flame and carburizing flame with a root gap of 0.4mm, 0.6mm, and 0.8mm. The material used in this research is mild steel St37. The added material used is 3mm diameter brass wire. From the research that has been carried out, it shows that the energy absorbed and the impact value on welding after calculation with the highest value on a neutral flame with a Root gap of 0.8 and the lowest value on a carburizing flame with a Root gap of 0.4.
REKONDISI MESIN GERINDA CUTTER vergo banarma; Putra perdana guna darma; Ariyanto Ariyanto; Tuparjono Tuparjono
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 02 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

US-350 cutter grinding machine is one of machines in workshop of Politeknik Manufaktur Negeri Bangka Belitung and functions to make and sharpen cutters. Up and down sled doesn’t move so the cutting isn’t optimal. Vacuum cleaner hose is broken so vacuum cleaner can't work. One way to restore function of damaged component is by reconditioning US-350 cutter grinding machine. Goal of final project is restore condition of US-350 cutter grinding machine to an acceptable condition based on user's standard operating. Final project carried out is to recondition US-350 cutter grinding machine by making threaded boshings, replacing flat belts and timing belts, modifying idler belts, making vacuum cleaners, replacing broken vacuum cleaner hoses and replacing motor bearings. Testing final project is done by testing vibration using vibroport, testing engine geometry using dial indicator, testing each component function and testing accuracy. Test results show condition of cutter grinding machine has functioned well to operating conditions can be accepted by operating user. Condition in question is sledding of engine head has moved, vacuum cleaner system has been able to suck dust, electric motor has been functioning properly and isn’t noisy based on results of testing function of bearing according to user operating standards.
Co-Authors ADHIE SAPUTRA Adi Saputra Agus, Darma Afriliansyah Aldo Welihardo Amana, Wahyu Ario Sunar Baskoro Ariyanto Ariyanto Arzela Tanjung Ampera Budi Haryanto Budi Otomo Darta, Yuli Dharta, Yuli Erwansyah, Erwansyah Erwanto . Erwanto Erwanto Ferenza, Oktovalen Feriadi, Indra Ilham Ary Wahyudie Irwansyah, Riko Muhammad Haritsah Amrullah Muhammad Naufal Muhammad Riduan, Muhammad Muhammad Tegar Dwicak Sono Egar Parulian Silalahi Pristiansyah, Pristiansyah Putra perdana guna darma Rahmat Maulid Riska Ade Febryani Rodika Rosanova, Fariez Rosanova Sugiyarto Sugiyarto Sugiyarto Syukori Putra, Nurul vergo banarma Welcy Fratama Winarto . Yuli Dharta