Slot drills for machining of high feed and shallow depth PASSAGE AND METHOD OF MILLING DETAILS SHOWN Frese

摘要

1. Milling cutter, in particular slot-milling machine, comprising a rod made of the carbide (12) extending along the axis (14) of rotation of the cutter and a ceramic head (16) which is attached by soldering to one end of said rod; wherein said ceramic head comprises teeth (22) evenly spaced around the axis of the cutter and separated from one another a space for the chip (28); wherein each tooth comprises a base having a substantially radial arrangement of the cutting edge (24) formed by the intersection of a front cutting face (Aγ) and the bottom surface rear angle (Aα), characterized in that the milling cutter has a generally, truncated conical, in which the larger base is the head end, the milling taper value of about 1-5 °; circuit (34) surface of the rear corner formed by the intersection of the surface relief angle with a plane passing through the axis of the milling cutter, has a rounded, outwardly convex shape, the radius of curvature (R1) which is about 5-20 mm; the radial cutting angle (γf), formed between the cutting face of each tooth and the reference plane (Pr) passing through the cutter axis of rotation and a certain point of the major cutting edge of the tooth is negative and is approximately 2-8 °, wherein the angle is measured in the working plane (Pf) perpendicular to the cutter rotation axis and passing through a specific point of the major cutting edge of the tooth. ! 2. The milling cutter according to claim 1, characterized in that the value of its taper is approximately 3 °. ! 3. The milling cutter according to claim 1, characterized in that the radial cutting angle (γf) is about -5 °. ! 4. The milling cutter according to claim 1