| 摘要 |
<p>The invention relates to a cutting insert for clamping into a disc-type or strip-shaped tool body, in particular, for milling crankshafts, whereby said insert is substantially cuboid-shaped and has two front faces, the distance between which defines the width (4) of the cutting insert, two side faces, serving as cutting faces (6) and the distance between which determines the thickness (3) of the cutting insert as well as an upper and a lower side face (5), whereby a convex face (1) is arranged between the front faces and the upper and lower side faces, so that the upper and lower side faces and the convex face form cutting edges (7) each with a side face, which terminate laterally in cutting corners. According to said invention, the cutting insert is characterised in that an inwardly-tapered face (2) adjoins the convex face, which allows the cutting edge to protrude, tapered chamfers (13, 14) are provided between the inwardly-tapered faces (2) of the front face on both sides of a planar supporting surface to the outer edge and the width and the thickness of the cutting insert vary from each other by a maximum of 20 % and preferably have identical lengths.</p> |
