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Romels Lumintang
Universitas Sam Ratulangi
Automotive Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PENGARUH KECEPATAN PEMAKANAN TERHADAP KEKASARAN PERMUKAAN BENDA KERJA PADA MESIN BUBUT KENT USA RML-1640T Yosua Li; Romels Lumintang; Rudy Poeng
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 12 No. 1 (2023): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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In the turning process, surface roughness is one of the important properties of the surface of an object because it determines whether or not the machine elements function properly. This is an obstacle in the industry, especially in manufacturing because it must be able to produce products with good surface roughness quality. Under these conditions, it is necessary to choose the right machining parameters. Some of the machining parameters that affect the quality of surface roughness are the main cutting angle and the feeding motion of the workpiece or feeding. Therefore, surface roughness is a measure of the accuracy and surface quality of a manufactured industrial product. The purpose of this study was to analyze the effect of feeding speed on the workpiece surface roughness in the KENT USA RML-1640T lathe process. To obtain the research results, it is necessary to test the lathe by varying the rotation by using a feed motion and a fixed depth of cut and the same test object material. The results of the analysis obtained from this study indicate that the feeding speed increases, the surface roughness increases. From the results of simple linear regression analysis, the regression line equation is obtained y ́ =2.839+0.030x which predicts that for every 1 mm/min increase in infeed speed, the surface roughness on the lathe for infeed speeds of 114 to 380 mmm/r will increase by 0.030 μm. And from the significant test results, it was found that feeding speed had a significant effect on the surface roughness of the turning process.. Keywords: Feeding Speed, Surface Roughness, Lathe Process
Pelatihan Teknik Welding 3G Untuk Pria Kaum Bapa Elia Getsemani Paal IV Di Kelurahan Paal IV Kecamatan Tikala Manado Romels Lumintang; Markus Mende; Jefferson Mende
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 11 No. 2 (2022): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Pelatihan pengelasan dasar 3G (welding 3G) bagi pria kaum bapa P/KB Elia Getsemani Paal IV. Kegiatan ini bertujuan untuk memberikan latihan pengelasan dasar 3G bagi pria kaum bapa Getsemani Paal IV yang terdampak pandemi Covid 19 karena kehilangan mata pencarian serta membuka peluang untuk berwirausaha dan menambah daya saing jika mencari pekerjaan, Melalui program kemitraan masyarakat bagi P/KB Elia Getsemani Paal IV ini dapat menambah wawasan peserta tentang keselamatan kerja pada pekerjaan las, teknik pengelasan dasar, metode pengelasan, dan teknik penyambungan hingga teknik welding 3G. Kata kunci: PKB Elia Getsemani Paal IV, Welding 3 G, Pandemi Covid 19
PENGARUH CUTTING SPEED TERHADAP PEMAKAIAN DAYA LISTRIK PADA PROSES BUBUT POROS S 45 C DENGAN MESIN KENT USA RML-1640T Tertius Ulaan; Rudy Poeng; I Nyoman Gede; Romels Lumintang; Irvan Rondonuwu
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 12 No. 1 (2023): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Abstract

In the turning that requires power to do so, there are several factors that affect the power required in tuning, cutting speed depth of cut, feeding workpiece material, and others. Of the several factors that affect the power of a lathe The purpose of this study was to analyze “the effect of cutting speed on electrical power consumption on the KENT USA RML-1640T lathe” in the mechanical engineering of Sam Ratulangi University (Unsrat). To obtain research results, it is necessary to test the lathe by varying the rotation by using a feeding motion and a fixed depth of cut and the same test abject material. The results of the analysis obtained from this study indicate that the increasing cutting speed tends to increase the use of electrical power on the lathe. From the results of simple liniear regression analysis, the regression line equation predicts that for every 1m/min increase by Rp. 0.087. From the results of the significant test, it is found that cutting speed has a significant effect on electric power consumption on the lathe Keywords: Cutting Speed, Electric power, Lathe Proses
Co-Authors I Nyoman Gede Irvan Rondonuwu Jefferson Mende Markus Mende Rudy Poeng Tertius Ulaan Yosua Li