| 摘要 |
<p>A rotatable cutting tool (10) having a tool body (12) with a socket (26) contained in the forward end thereof wherein a hard insert (32) is affixed to the tool body (12) within the socket (26). The hard insert (32) comprises an integral tip portion (34) and an integral cylindrical flange portion (42) joined to the tip portion (34) by integral mediate portion (36, 38, 40). An integral boss (50) projects from the bottom surface (44) of the flange portion (42) wherein the boss (50) is of a generally frusto-conical shape which corresponds to the generally frusto-conical volume defined by the socket (26). A plurality of dimples (60, 64) projects from the bottom surface (44) of the flange portion (42) and the frusto-conical surface (52) of the boss (50) to provide for a braze joint of uniform thickness between the hard insert (32) and the tool body (12).</p> |
