本計畫主要目的在發展創新超音波輔助放電複合電泳方法，加工鐵基金屬玻璃，以獲得精密加工成形與鏡面效果的加工技術，並減少結晶相層的厚度及增進放電加工的穩定性，本研究首先將採用超音波輔助放電方法，並於放電絕緣液中添加具導電性之帶負電性石墨烯或鋁粉，並探討各種放電加工參數，例如峰值電流、脈衝時間、、超音波頻率、超音波振幅、放電液種類、導電粉末種類對鐵基金屬玻璃各種加工特性的影響，加工特性包括表面粗糙度、材料移除率、結晶相層厚度及電極消耗率影響程度，然後採用超音波輔助電泳拋光技術，並以石墨烯具高散熱、潤滑性(低磨差力)等優點，以及可具有負電性特性，可為被電氣泳動之材料之材料特性添加於加工液中，進行鐵基金屬玻璃放電加工後表面拋光，並探討各種電泳拋光參數，例如磨料號數、拋光轉數、拋光荷重、加工時間、加工電壓、超音波頻率、超音波振幅、石墨烯重量，並分析探討各個參數對表面粗糙度影響程度。 ;This study will develope a novel process of ultrasonic vibration-assisted EDM and electrophoretic polishing on Fe-based metallic glass. The innovative method can fabricate a precise shape and a mirror-like surface of metal glass. The method can also decrease the thickness of the crystallization phase layer on the surface and increase the stability of the process. The conductive powders will be added in to dielectic liquid in the ultrasonic vibration-assisted EDM experiments. The conductive powders could be aluminum power and graphene. The processing parameters, such as various peak current, pulse duration, ultrasonic vibration frequency, ultrasonic vibration amplitude, type of dielectic liquid, will be discussed in various quality characteristics. The quality characteristics are electrode wear rate, surface roughness, material removal rate and crystallization phase layer thickness. The experiments of ultrasonic vibration-assisted electrophoretic polishing on Fe-based metallic glass will be performed after EDM process. The graphene having good heat dissipation and lubricity will be added in to the electrolyte in the experiments. The processing parameters, such as various abrasive grit size, polishing wheel rotation speed, polishing load, machining time, working voltage, ultrasonic vibration frequency and ultrasonic vibration amplitude, will be discussed to find the effect of surface roughness.
