A Review on Optimizations in μ-EDM Machining of the Biomedical Material Ti6Al4V Using the Taguchi Method: Recent Advances Since 2020
Shalom Akhai
Abstract
This study reviews current advances in μ-electric discharge machining (μ-EDM) of biomedical material Ti6Al4V, focusing on Taguchi technique optimization. μ-EDM can generate microfeatures on hard-to-machine materials with great productivity and quality. However, appropriate machining settings and surface quality improve process performance and application feasibility. The study examines Taguchi-based μ-EDM process modelling, optimization, and simulation studies published since 2020. These studies emphasize material removal rate (MRR) and surface roughness (Sr). The Taguchi approach, recognized for its robust parameter selection and optimization, has been widely used to improve μ-EDM precision, accuracy, and efficiency. The Taguchi technique is also used in biomedical research for μ-EDM optimization. μ-EDM machined Ti6Al4V, a biomaterial known for its biocompatibility and mechanical characteristics. μ-EDM is a sustainable and cost-effective method for biomedical implant and MEMS fabrication. Researchers have optimized process parameters and improved surface quality using the Taguchi technique to fabricate complex Ti6Al4V components with improved functionality. Thus, this review is useful for μ-EDM and Taguchi optimization researchers, engineers, and practitioners. It discusses new advances, approaches, and results, revealing μ-EDM’s promise for biomedical applications and highlighting the Taguchi method’s importance in machining performance and quality.