| 摘要 |
The present invention relates to a disposable drilling and milling cutter (10) used with an NC or CNC machine tool and formed to be transferred in a spiral shape. The prevent invention includes: a sank (11); a chip removal groove (12) provided to one among multiple offset positions at an end of the sank (11); a blade seat (13) provided to a distal end of the chip removal groove (12); and a disposable blade fixed to the blade seat (13). The disposable blade (20) includes cutting blades (23) in the top and bottom, and each of the blades (23) includes an irregular height and notch (24). A wave pattern structure design of the disposable blade (20) enables drilling and milling in a dividing method with the drilling and milling cutter (10), makes drilling/milling chips automatically broken, and enables an intermittent process. |
