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The performance of brass electrode on material removal for aluminium composite in EDM die-sinking

Ali, Mohd Amran and Laily Suraya, Laily Suraya and Mohd Nordin, Fatin Aisyah and Hussein, Nur Izan Syahriah and Muhamad, Mohd Razali and Manshoor, Bukhari and Lajis, Mohd Amri and Raja, Izamshah and Mohd Hadzley, Mohd Hadzley and Taufik, Taufik (2014) The performance of brass electrode on material removal for aluminium composite in EDM die-sinking. Applied Mechanics and Materials, 660. pp. 43-47. ISSN 1662-7482

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Abstract

This paper investigates the performance of brass electrode on the removal of aluminium alloys LM6 (Al-Sil2) in an electrical discharge machining (EDM) die-sinking. The machining parameters such as pulse-on time, pulse-off time and peak current were selected to find the responses on the material characteristics such as material removal rate (MRR), electrode wear rate (EWR) and surface roughness (Ra). Brass with diameter of 10mm was chosen as an electrode. Orthogonal array of Taguchi method was used to develop experimental matrix and to optimize the MRR, EWR and Ra. It is found that the current is the most significantly affected the MRR, EWR and Ra while pulse on time, pulse off time and voltage are less significant factor that affected the responses. Percentage optimum value of MRR increases to 3.99%, however EWR and Ra reduce to 3.10% and 2.48% respectively. Thus, it shows that brass having capability to cut aluminium alloys LM6.

Item Type: Article
Uncontrolled Keywords: EDM die-sinking; material removal rate; electrode wear rate; surface roughness
Subjects: T Technology > TN Mining engineering. Metallurgy
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Plant and Automotive Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 27 Apr 2015 08:23
Last Modified: 27 Apr 2015 08:23
URI: http://eprints.uthm.edu.my/id/eprint/6482
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