| 摘要 |
PURPOSE: A slot-drilling cutting tool is provided which is versatile in use, produces a large metal cutting yield, permits a precise metal cutting of the workpiece, and which is simple to maintain. CONSTITUTION: A slot-drilling cutter(1) comprises: a tool body(2) having at least one first plate seat(5) and at least one second plate seat(6), the plate seats are substantially identical with each other and arranged symmetrically in respect to an axis of rotation of the tool body(2) ; and a first cutting plate(3) and a second cutting plate(4), the cutting plates(3, 4) are substantially identical with each other, each having a base, lateral side faces, and a top surface, which define a substantially straight end cutting edge(7, 8), a corner cutting edge(9, 11), and a substantially straight peripheral cutting edge(12, 14). The end cutting edges(7, 8), the corner cutting edges(9, 11) and peripheral cutting edges(12, 14) are identically positioned in an axial direction(a) and radial direction(r), and the top surfaces of the cutting plates(3, 4) are offset in respect to each other.
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