Sandvik Ab

Lars Lindstedt

Par Tagtstrom

The present invention relates to a turning insert that comprises a generally rectangularly shaped body having a front end surface with a main cutting edge at the intersection between the front end surface and an upper land area. A chipforming area is provided in the forward portion of the upper surface and is shaped in the form of a number of distinctly provided recesses and ridges in order to promote improved chip control and to obtain narrower chips in grooving operations.

Cutting insert for cutting and grooving tools

Cutting insert

An insert for metal turning and grooving has an annular cutting edge. A chipformer surface is disposed radially inside of the cutting edge. A chip breaking wall is disposed radially inside of the chipformer surface. The chip breaking wall is inclined upwardly. A first section of the chip breaking wall located adjacent a front end of the insert has a steeper inclination than a second section thereof spaced circumferentially from the first section in a direction toward the rear end of the insert. The inclination of the chip breaking wall varies progressively from the first section to the second section.

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Sandviken, Sweden

Lars Lindstedt