| 摘要 |
<p>The invention relates to a turning insert (10) that consists of a polygonally shaped body, confined by oppositely disposed side surfaces (11, 12) interconnecting upper and lower surfaces (13, 14) and front and rear end surfaces (15, 16), with a main cutting edge (18) at the intersection between the front end surface (16) and an upper land area (27). A chipforming device (19) is provided in the forward portion of said top surface (14) shaped in the form of a number of distantly provided recesses (28, 30) and ridges (34, 35) in order to promote improved chip control and obtention of narrower chips in grooving operations. <IMAGE></p> |
