Experimental study on wire-EDM of biodegradable WE43 magnesium alloy for medical applications

The WE43 magnesium alloy is emerging as a potential substance for use in biomedicine due to its excellent biocompatibility and controlled biodegradability. Wire Electrical Discharge Machining (WEDM) is increasingly utilized for machining magnesium alloys, particularly because it offers superior dimensional accuracy compared to conventional machining methods. Critical response factors such as surface roughness and kerf width are significantly influenced by WEDM parameters. This research looks into the use of WEDM in machining the biodegradable WE43 magnesium alloy, focusing on optimizing these response factors. Initial experiments were conducted. to determine the appropriate variety of machining applications, with kerf width and surface roughness as the primary responses. A rotatable central composite design was employed to determine the optimal experimental conditions for evaluating these parameters. The analysis revealed that pulse duration is a dominant factor affecting Kerf width as well as surface roughness. The experimental data were used to develop empirical models that predict the response factors based on machining parameters. Validation experiments confirmed the accuracy of these models, with satisfactory agreement between predicted and experimental results.