Effect of in-plane exit angle and rake angles on burr height and thicknessin face milling operation

Burrs formed by milling are three-dimensional in nature. Therefore the thre e-dimensional effects on milling burl formation in 304L stainless steel wer e considered An important aspect of the three-dimensional effects is the ex it order of the tool edges because the burr remains near the final exit pos ition of the tool along the workpiece edge. The geometric parameters of the workpiece and tools were varied to change exit order in the workpiece arou nd the cutting edge. Moreover in this paper, classification of milling burr s bared on burr location, shape and mechanism is also proposed to avoid con fusion. The milling burrs were classified according to three locations, fiv e shapes and four burr formation mechanisms based on fractography. The exit burr on the exit surface and the side burr on transition surface of workpi ece were mainly analyzed The effect of in-plane exit angle and radial rake angle on burr formation were shown and the burr formation mechanism for eac h burr was also discussed.