| 摘要 |
<p>An exchangeable cutting insert for mounting in a cutter tool (11) and comprising a substantially square, planar base (1); a substantially square upper rake surface (2) and side flanks (3) extending outwardly from respective edges (4) of said base; each side flank intersecting said rake surface at successive main (5) and secondary cutting edges (10); each secondary cutting edge (10) being outwardly spaced with respect to its adjacent relief flank surface (3) and being displaced towards said base with respect to its associated main cutting edge (5), the arrangement being such that when viewed in plan in the direction of said rake surface, each secondary cutting edge (9) does not project beyond its associated main cutting edge. <IMAGE></p> |
