Abstract—This paper highlights on the drilling characteristics of various drill bits while drilling a microwave (MW) transparent material in a customized MW applicator. An attempt was made to investigate the feasibility of drill bit of different microwave reflective materials in a 2.45 GHz microwave applicator. The behavior of electrically conductive material was found to be more suitable as a drill bit for microwave drilling. Seven different types of drill bit were used while drilling hole in perspex work material. The test were performed in controlled atmosphere of domestic microwave applicator for less than 300 s. Observations could help while selecting a suitable drill bit with suitable size, shape and material for microwave drilling applications.

Index Terms—Microwave drilling, Drill bits, Perspex, Applicator

Cite:Nitin Kumar Lautre, Apurbba Kumar Sharma, Pradeep Kumar and Shantanu Das, "," International Journal of Mechanical Engineering and Robotics Research, Special Issue, Vol. 1, No. 1, pp. 23-29, January 2014.