Fabrication of Micro Compound Tools and Their Application in Drilling

Abstract

The research deals with the development of micro compound tool consisting of a micro flat drill as a drilling part and a micro electroplated diamond grinding part for finishing. The study focuses on the fabrication method of these micro compound tools and their application in making and finishing holes into stainless steel (SUS304). From the experiment, it was found that there is an optimum drill point angle which results in a minimum burr formation including entrance and exit burr. Furthermore, ultrasonic vibration during machining could improve the performance of micro compound tool by decreasing the machining force.