ANALISIS KEKASARAN PERMUKAAN DAN KEAUSAN PAHAT PADA PROSES DRILLING MENGGUNAKAN METODOLOGI PERMUKAAN RESPON

SYAHMORA, AFLAA AUFAAROZA ABDURRAFI and Mohruni, Amrifan Saladin and Budiman, Arie Yudha (2023) ANALISIS KEKASARAN PERMUKAAN DAN KEAUSAN PAHAT PADA PROSES DRILLING MENGGUNAKAN METODOLOGI PERMUKAAN RESPON. Undergraduate thesis, Sriwijaya University.

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Abstract

Surface roughness is one of the parameters in determining the geometric precise of a machining process, including drilling. Surface roughness is affected by cutting parameters. The aim of this study is to investigate the effect of cutting speed and feed on the surface roughness R_a and tool wear V_B, and further to obtain a mathematical equation that allows to get R_a prediction. In this study, a CNC TU-3A machine was used and aluminium 6061 as the workpiece using HSS twist drill and MQL method with sunflower oil. The study result showed that the lowest R_a 0.72 µm and V_B 0.0386 mm were obtained under the cutting condition with V_C of 22.5 m/min and F_Z of 0.04172 mm/tooth. On the other hand, the highest R_a 1.678 µm and V_B 0.1298 mm were obtained under the cutting condition with V_C of 22.5 m/min and F_Z of 0.09828 mm/tooth. The ANOVA analysis showed that V_C had a negative influence on R_a while F_Z had a positive influence on R_a. The mathematical equation for quadratic modelling is y=1.09-0.1060x_1+0.3265x_2-0.0050x_1 x_2-0.0024x_1^2+0.0373x_2^2. Through the Mean Square Error Method, it is obtained that quadratic modelling has a lower error percentage than the linear model, which is 0.01408%.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Drilling, Kekasaran Permukaan, Keausan Pahat
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:	Prof Amrifan Saladin Mohruni
Date Deposited:	25 Jul 2023 06:44
Last Modified:	28 Jul 2023 07:02
URI:	http://repository.unsri.ac.id/id/eprint/121492

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