A novel method for fabrication of meso-scale cutting tool

Based on the electrode finishing technique in electrical discharge machining (EDM), a new method is proposed in the article to fabricate meso-scale cutting tool efficiently. The research on the techniques to attain the minitype cutting tool was based on analyzing the feature of EDM on meso-scale cutting tool. The process of fabrication for minitype cutting tool is determined, and the minitype grooving tools with the characteristic sizes of 70 µm were made of two types of materials. This fabrication method proved to be applicable to high efficiency fabrication of meso-scale cutting tool. The factors affecting precision of meso-scale cutting tool were analyzed, the causes for worse shape precision and surface roughness were described specifically, and the suggestions to improve the machining quality were proposed.