RESEARCH ON CUTTING PERFORMANCE OF CERAMIC CUTTING TOOLS IN MILLING HIGH DENSITY FIBERBOARD

The effect of cutting parameters and tool parameters on cutting forces and tool wear were investigated in high density fiberboard (HDF) peripheral up-milling using toughened ceramic cutting tools. The results showed that whether at low speed cutting or high speed cutting, the tangential forces F-t and normal forces F-r increased slowly with the increase of cutting length. The tangential forces F-t and normal forces F-r at low speed cutting were higher than that at high speed cutting. The tangential forces F-t and normal forces F-r decreased with the decrease of wedge angle in the same rake angle. Then, the effect of high cutting speed on the flank wear was greater than that at low cutting speed. The bigger wedge angle tools led to the serious flank wear. The main wear pattern in milling HDF consisted of pull-out of the grain, flaking, chipping and cracking, the main wear mechanism were adhesive and abrasive wear.