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All Journal Jurnal Teknik Mesin Indonesia Bhinneka Multidisiplin Journal
Asnawi Lubis
Universitas Malahayati
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Control & Systems Engineering Economics, Econometrics & Finance Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences

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Perancangan alat pemotong kayu dengan dua mata pisau menggunakan dinamo sebagai mesin penggerak yang multifungsi M Miko Mizar; Asnawi Lubis; Tumpal Ojahan Rajagukguk
Jurnal Teknik Mesin Indonesia Vol. 17 No. 2 (2022): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v17i2.379

Abstract

Technology continues to develop all the time along with the progress of the times, in addition to facilitating human work, the use of machines is very helpful in increasing productivity in a relatively faster time, including wood processing craftsmen in Indonesia. To make it easier for wood craftsmen, a modern saw machine is needed so that it is hoped that the demand from the community can be met. This study aims to design a wood cutting tool and find out how long it takes to cut wood with a thickness of 0.75 cm, 1.75 cm, 2.75 cm and 3.75 cm, and a cutting width of 3 cm. The design of this multifunctional tool uses cutting blades and an AC 220 V – 180 watt dynamo as a driving machine. The result of the design is shaped like a table with two blades that can be used interchangeably, and there is sandpaper on the front that functions as a smoothing part of the cut wood. This tool has a height of 90 cm, a width of 50 cm, a length of 70 cm, and the height of the top blade holder is 15 cm, and the top blade holder is 60 cm long, the sandpaper holder is on the front side. This tool is able to cut the type of wood medang aged approximately 15 years in the form of blocks with a thickness of 0.75 cm in 2.51 seconds, 1.75 cm 3.72 seconds, 2.75 cm in 6.27 seconds, and 3. 75 cm with 8.70 seconds average time.
PERANCANGAN ALAT PENGUJIAN IMPAK METODE CHARPHY SKALA LAB MENGGUNAKAN ASTM E23 Dimas Ega Setiawan Dimas; Asnawi Lubis; Anang Ansyori; Beny Hartawan
Bhinneka Multidisiplin Journal Vol. 3 No. 1 (2026): Bhinneka Multidisiplin Journal
Publisher : Yayasan Education and Social Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53067/bmj.v3i1.95

Abstract

One of the basic construction requirements is material. The mechanical properties required by a material include ductility, hardness, strength, and toughness. To determine the mechanical properties of a metal, it must be tested, one of which is the impact test. Impact testing is a test that measures resistance to shock loads. This study aims to design and construct an impact testing machine using the Charpy method and conduct direct research to determine the strength and impact energy of a metal. The tools used include a measuring scale, bearings, a shaft, a frame, a pendulum, and brakes. The test specimens used the ASTM E23 standard, which has a square cross-sectional area (10 x 10 mm) and a V-notch of 45°, with a base radius of 0.25 mm and a depth of 2 mm, and a 10 mm rivet. This impact test equipment has a pendulum weight of 18 kg, a pendulum length of 700 mm, an initial knock position of 1450, has dimensions of 1500 mm in length, 350 mm in width, and 1200 mm in height. The first specimen has a cross-sectional area of 550 mm² at 0⁰C producing an impact energy of 212.131 J, and an impact value of 0.385 J/mm². The second specimen at 15 ⁰C produces an impact energy of 213.953 J and an impact value of 0.389 J/mm². The third specimen at 30 ⁰C produces an impact energy of 221.464 J and an impact value of 0.402 J/mm². The fourth specimen at 45 ⁰C produces an impact energy of 222.360 J and an impact value of 0.404 J/mm². The fifth specimen, at 60°C, produced an impact energy of 223.108 J, resulting in an impact value of 0.405 J/mm². Testing ASTM E23-standardized steel with varying temperatures revealed that steel becomes more brittle when exposed to low temperatures, and more ductile when exposed to high temperatures.
Co-Authors Anang Ansyori Beny Hartawan Dimas Ega Setiawan Dimas M Miko Mizar Tumpal Ojahan Rajagukguk