Integrating laser assisted Micro-EDM for development of micro-features: A hybrid approach

Non-traditional machining employs both laser and micro electrical discharge machining (EDM) processes to produce intricate shapes and handle difficult-to-cut hard materials without direct contact. Both technologies are prominent for drilling operations and are used in many sectors, such as aviation, automobiles, and medical. While considering laser and micro EDM machining processes have their own sets of limitations and advantages. Micro-EDM provides high surface quality, whereas laser is a significantly faster machining process. However, there is a limitation of traditional methods in fabricating micro features such as multiple electrodes, needles, and holes. Laser-assisted micro EDM (LAMEDM) facilitated the fabrication of such features precisely. This study also focuses on the biocompatible material, such as Titanium alloy and magnesium alloy, which are involved in the fabrication of micro-features varies around 70 μm-90 μm, and also achieved a high aspect ratio up to 7. Moreover, this study also addresses problems related to microelectrode breakage during insertion and removal, which can result in toxicity and skin irritation.