Experimental Investigation on Wire Electric Erosion Behaviour of Silicon Dioxide Particulate Reinforced Composite

• Autorzy: Alagarsamy S.V. , Vinoth B. , Deepak D.

Identyfikatory

DOI

10.24425/amm.2024.149779

• Języki publikacji: EN

Abstrakty

EN

The intend of current study was focused on the prediction of material removal rate (MRR) and surface roughness (SR) for the AA7050-SiO₂ composite during wire electric erosion or discharge machining (WEDM) process using a brass (Br) wire electrode. Here, stir casting process was employed to develop the AA7050 matrix composite with inclusion of 10 wt.% SiO₂ particle reinforcement. The multi-objective optimization method of Technique for order preference by similarity to ideal solution (TOPSIS) approach has been applied to find out the optimal setting of input machining parameters such as peak current (I_p), pulse-on time (T_on) and pulse-off time (T_off). Furthermore, the significant effects of parameters were identified by analysis of variance (ANOVA). Taguchi L₉ (3³) orthogonal design has been formulated to perform the experimental work. TOPSIS results stated that the optimal setting of I_p at 30 amps, T_on of 130 μs and T_off of 55 μs provide the better MRR with lesser SR. The ANOVA results noticed that I_p has the prime noteworthy parameter over the adopted responses having a contribution of 45.67%, followed by T_on (32.34%) and T_off (12.26%), respectively. The confirmation test was carried out by the optimal parameters setting to verify the predicted results. Finally, the scanning electron microscopy (SEM) test was carried out for the machined surface of the composite specimen and it was reveals that the formation of craters and recast layer thickness in the machined surfaces.

Słowa kluczowe

EN

AA7050; SiO2; stir casting; WEDM; surface roughness; TOPSIS; ANOVA

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2024
• Tom: Vol. 69, iss. 2
• Strony: 525--534
• Opis fizyczny: Bibliogr. 36 poz., rys., tab., wzory

Twórcy

autor

Alagarsamy S.V.

• Mahath Amma Institute of Engineering and Technology, Department of Mechanical Engineering, Pudukkottai-622 101, Tamil Nadu, India

• https://orcid.org/0000-0002-6564-0346

autor

Vinoth B.

• Mangayarkarasi College of Engineering, Department of Mechanical Engineering, Madurai-625 402, Tamil Nadu, India

• https://orcid.org/0000-0002-4591-256X

autor

Deepak D.

• Paavai Engineering College, Department of Aeronautical Engineering, Namakkal-637 018, Tamil Nadu, India

• https://orcid.org/0000-0002-1210-5243

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