摘要 |
A cutting insert for metal cutting includes a body portion of a generally polygonal shape having a cutting end including a front end wall, sides, and top and bottom surfaces. The intersection of the top surface, end wall and sides forming a cutting edge. The top surface includes a cutting land of a generally concave shape about an axis longitudinally extending between the sides and sloping downwardly and inwardly from the cutting edge, a chipgroove area adjoining the cutting land and extending inwardly therefrom and disposed at a lower elevation than the cutting edge, and an upsloping chipbreaker portion adjoining the chipgroove area and the cutting land and leading to a plateau disposed at a higher elevation than the cutting edge and chipgroove area. The chipbreaker portion is configured symmetrically about the axis and includes a forwardly extending fingerlike projection on either side of and continuous with a rearwardly recessed region bisected by the axis. |
申请人 |
VALENITE INC., DOVER, DEL., US |
发明人 |
KATBI, KARL, TROY, MICH., US;NOGGLE, KEN, WEST BLOOMFIELD, MICH., US;LOWE, TONY, ROYAL OAK, MICH., US;PATTERSON, JOHN, HAZEL PARK, MICH., US |