Proceedings of the
World Congress on Micro and Nano Manufacturing (WCMNM 2022 )
19–22 September 2022, Lueven, Belgium
doi:10.3850/978-981-18-5180-3_RP22-0009
Influence of Different Electrode Materials During Micro Hole Fabrication in Titanium Grade 5
Department of Mechanical Engineering, NIT Rourkela, India
ABSTRACT
The aim of the study is to investigate the performance of different electrode materials i.e., Copper, Graphite and Platinum during micro hole fabrication in Titanium grade 5. For this purpose, Voltage (V), peak current (Ip), Pulse on duration (Ton) and Pulse off duration (Toff) are considered process variables, while Material removal rate (MRR) and Overcut (OC) are considered process responses. This paper utilizes micro-electrical discharge machining, in which thermal processing of workpieces is not affected by the mechanical properties of materials. This experiment utilizes the response surface methodology with a central composite design for carrying out experiments. The experiments were performed on a Swiss-built AGIETRON 250 die-sinking EDM machine with computer numeric control supplied by Charmilles Technologies. A commercial grade-EDM Oil (3033) was used as dielectric fluid during the experiment. It was observed that platinum as electrode material revealed higher MRR as compared to other electrode materials and graphite for lower values for Overcut (OC).
Keywords: Copper, Graphite, Material removal rate (MRR), Platinum, Pulse on duration (Ton), Pulse off duration (Toff).
Department of Mechanical Engineering, NIT Rourkela, India
ABSTRACT
The aim of the study is to investigate the performance of different electrode materials i.e., Copper, Graphite and Platinum during micro hole fabrication in Titanium grade 5. For this purpose, Voltage (V), peak current (Ip), Pulse on duration (Ton) and Pulse off duration (Toff) are considered process variables, while Material removal rate (MRR) and Overcut (OC) are considered process responses. This paper utilizes micro-electrical discharge machining, in which thermal processing of workpieces is not affected by the mechanical properties of materials. This experiment utilizes the response surface methodology with a central composite design for carrying out experiments. The experiments were performed on a Swiss-built AGIETRON 250 die-sinking EDM machine with computer numeric control supplied by Charmilles Technologies. A commercial grade-EDM Oil (3033) was used as dielectric fluid during the experiment. It was observed that platinum as electrode material revealed higher MRR as compared to other electrode materials and graphite for lower values for Overcut (OC).
Keywords: Copper, Graphite, Material removal rate (MRR), Platinum, Pulse on duration (Ton), Pulse off duration (Toff).
