A rotary cutting tool with a cooling channel, which for the stress reduction in a non-circular recess is disposed

摘要

Cutting tool, which has:a tool body (12), which a plurality of pockets (26) for receiving of cutting inserts, wherein each pocket (26) a lower support surface (30), an axial bearing surface (32), a radial bearing surface (34) and a corners behind section (36) between the lower support surface (30) and the radial bearing surface (34) comprises;a cooling channel (38) close to at least one of the plurality of pockets (26); anda not - circular recess (40), which surrounds the cooling channel (38),the not - circular recess (40), a tensile stress in the cutting tool during a finishing process is reduced, characterized in that the not - circular recess (40) has a minimum depth, which approximately corresponds to half a maximum width (42) of the recess (40) is.