ANALISIS DAYA PEMESINAN DAN KEKASARAN PERMUKAAN PADA PROSES BUBUT

DWITAMA, REKSY RAY and Yanis, Muhammad (2025) ANALISIS DAYA PEMESINAN DAN KEKASARAN PERMUKAAN PADA PROSES BUBUT. Undergraduate thesis, Sriwijaya University.

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Abstract

Machining process, particularly lathe, is an important technique in manufacturing. This research explores the relationship between machining parameters (spindle speed, feeding, and depth of feed) to power consumption and surface roughness. This understanding is necessary to improve energy efficiency, product quality and reduce environmental impact. The study was conducted using a conventional lathe with variations in machining parameters: spindle speed 190 to 712 rpm, feed 0.10 to 0.22 mm/rev, and depth of cut 0.25 to 0.75 mm. The machining power was calculated using the 3-phase AC electrical power equation, while the surface roughness was measured using a Handysurf E-35A tool. The results showed that increasing spindle speed, feed, and depth of cut increased machining power. The highest efficiency was achieved at a spindle speed of 712 rpm, feed 0.22 mm/rev, and depth of cut 0.5 mm. Meanwhile, the lowest surface roughness was found at high spindle speed, while large feeding and depth of cut increased the roughness due to vibration and material deformation. The results showed that increasing the spindle speed, feeding and feeding depth significantly affected the machining performance, where it led to an increase in idle power and cutting power. In addition, cutting efficiency tends to increase when the machining parameters are set at a heavier level, although mechanical efficiency decreases when the spindle speed is too high. In terms of yield quality, surface roughness decreases with an increase in spindle speed, but increases as feeding and depth of cut increase. Based on the analysis conducted, spindle speed was found to have the greatest influence on the test results compared to other parameters. For the roughing process (spindle 530 rpm, feeding 0.13 mm/turn, depth 0.5 mm) and finishing (spindle 712 rpm, feeding 0.10 mm/turn, depth 0.25 mm) This study shows that optimization of machining parameters can improve energy efficiency and the quality of cutting results. These results are expected to help the development of more efficient and environmentally friendly machining strategies. It is recommended to use high-precision measuring instruments and modern lathes for optimal results in similar studies. Keywords: Lathe Process, Machining Power, Surface Roughness, Machining Parameters

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Lathe Process, Machining Power, Surface Roughness, Machining Parameters
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ1-1570 Mechanical engineering and machinery
Divisions:	03-Faculty of Engineering > 21201-Mechanical Engineering (S1)
Depositing User:	Reksy Ray Dwitama
Date Deposited:	07 Jan 2025 08:06
Last Modified:	07 Jan 2025 08:06
URI:	http://repository.unsri.ac.id/id/eprint/162839

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