Experimental investigation and machining analysis of Mg/TiC composites during EDM

• Autorzy: Dash Dharmeswar , Devarajaiah Devarasiddappa , Dash Santosh Kumar , Samanta Sutanu , Rai Ram Naresh

Identyfikatory

DOI

10.62753/ctp.2024.02.1.1

• Języki publikacji: EN

Abstrakty

EN

Electrical discharge machining (EDM) is one of the prominent non-conventional machining processes used to machine metal matrix composites. Mg/TiC composites are found in many industrial applications and conventional machining of the same is highly challenging. This paper aims to study the machinability analysis of Mg/TiC composites using EDM with pulseon time (Ton), pulse-off time (Toff) and input current (I) as the process variables with the material removal rate (MRR) and surface roughness (SR) as the performance measures. Stir cast Mg-alloy reinforced with TiC (0, 5, 10, 15 and 20) by weight was used as the workpiece. The EDM experiments were conducted as per L25 orthogonal array (OA) and the results were analyzed to study the effect of the process variables on MRR and SR. The parametric study showed that SR increases linearly with Ton and is attributed to larger craters produced at a higher pulse energy. MRR was also observed to grows with the rise in Ton as more material melts due to high-intensity pulses. As per the ANOVA results, Ton was found to be the most influential process variable affecting SR and MRR with a 79% and 34% contribution, respectively. Surface morphology investigations using SEM micrographs revealed the presence of globules and sphere-shaped metal deposits and were found responsible for increased SR.

Słowa kluczowe

EN

magnesium alloy; TiC; electrical discharge machining; surface quality; material removal rate; surface roughness; analysis of variance

PL

stopy magnazu; TiC; wyładowania elektryczne; jakość powierzchni; szybkość usuwania materiału; chropowatość powierzchni; analiza wariancji

• Wydawca: Polskie Towarzystwo Materiałów Kompozytowych
• Czasopismo: Composites Theory and Practice
• Rocznik: 2024
• Tom: R. 24, nr 1
• Strony: 9--16
• Opis fizyczny: Bibliogr. 27 poz., rys., tab.

Twórcy

autor

Dash Dharmeswar

• GKCIET, Department of Mechanical Engineering, Malda, West Bengal - 732141, India

autor

Devarajaiah Devarasiddappa

• Rajiv Gandhi Govt. Polytechnic College, Itanagar, Arunachal Pradesh - 791113, India

autor

Dash Santosh Kumar

• GKCIET, Department of Mechanical Engineering, Malda, West Bengal - 732141, India

autor

Samanta Sutanu

• NERIST, Department of Mechanical Engineering, Arunachal Pradesh - 791109, India

autor

Rai Ram Naresh

• NIT, Department of Production Engineering, Agartala, Tripura - 799046, India

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).