ROUGHING END MILL AND INSERT FOR ROUGHING END MILL

摘要

a roughing end mill is in rotation around the axis of the outer body and an end mill, the axial direction and a plurality of inserts arranged at an interval. The plurality of inserts form a plurality of columns formed in the insert in the circumferential direction of the end mill body, and in the column between the insert adjacent the circumferential direction has at least a portion of the insert are arranged shifted from each other in the axial direction. Wherein at least a portion of the insert is irregular waveform day depending on the cutting edge shape of the cutting edge toward the axial direction toward the outer peripheral side of the end mill body. The at least a portion of the insert, the insert is shifted one column to insert one of the insert and insert another column axial direction, the cutting edge wave-shaped edge of each nalyeol continuous waveform was shaped cutting edge in the rotation locus of the axis of that circumference phase are arranged so as to configure. Is the outer periphery of the end mill body is formed in a different phase with the plurality of wave-shaped cutting edge nalyeol.