An Experimental Study on Burrs in Micro Milling Antenna Micro Narrow Slots

Micromilling is a key machining process in the fabrication of radar antenna. However, burr formation in mechanical machining process is the most important problem which becomes more critical for a micro-scale feature. Removal of micro-size burr is much more difficult than micro counterpart. In order to control the size of burrs on antenna micro narrow slots, the effects of rotational speed; feed speed and cutting depth on burrs formation in micro milling have been studied experimentally. The result of experimental analysis showed that rotational speed which is a significant factor has the biggest influence on the size of burrs. Feed rate and cutting depth, which are non-significant factors, have relatively smaller influence.