Sandvik Intellectual Property Ab

Rickard Sundström

Susanne Norgren

Ralf Lehto

Björn Ljungberg

Leif Åkesson

Marie Pettersson

Johan Bergquist

Milling insert and tool for center cutting milling of material. At least one first cutting edge is terminated in or adjacent to a center axis defined by the milling insert and includes a first cutting edge portion having a first radius that is essentially equally great for each point of the first cutting edge portion. The first cutting edge includes at least one second cutting edge portion that is plane or has at least one second radius for each point of the respective second cutting edge portion, the at least one second radius being greater than the first radius and that is situated between the first cutting edge portion and the center axis. One second cutting edge portion adjoins the first cutting edge portion, and one second cutting edge portion is terminated in or adjacent to the center axis.

Milling insert, a tool and a device for milling

The present invention discloses a coated cutting tool insert particularly useful for dry and wet machining, preferably milling, in low and medium alloyed steels, stainless steels, with or without raw surface zones under severe conditions such as vibrations, long overhang and recutting of chips. The insert is characterized by WC&#x2014;Co cemented carbide with a W and Cr alloyed Co-binder phase and a coating including at least three TiCNOlayers and a top layer at least on the rake face of a smooth &#x3b1;-AlO.

Coated cutting tool insert

Growing community of inventors

Älta, Sweden

Rickard Sundström