METAL CUTTING MILLING TOOL
摘要:
A metal cutting milling tool 100, comprising: a body that is rotatable around a central axis C in a rotational direction; wherein the body comprises: a front end 106, a plurality of land portions 156 extending axially rearwards from the front end 106, a plurality of chip rooms 146 extending axially rearwards from the front end,
wherein each land portion 156 of the plurality of land portions is delimited by a leading 157 and a trailing surface 158 in the rotational direction, wherein the leading surface 157 is rotationally ahead of the trailing surface 158 and wherein each land portion 156, as part of the leading surface 157 in a radially outer and forward region, comprises an insert seat 110 for receiving a cutting insert 114; each chip room 146 of the plurality of chip rooms is positioned between two adjacent land portions 156 of the plurality of land portions, wherein each chip room 146 is delimited by a chip room surface comprising the trailing surface 157 of first land portion 156, the leading surface 157 of a second land portion 156 and a bottom surface positioned between the trailing surface 158 and the leading surface 157, wherein the first land portion 156 is rotationally ahead of the second land portion 156, wherein as seen in a cross section perpendicular to the central axis C each chip room surface has a curvature with a smallest radius r, characterized in that the smallest radius r2 in a second cross section and the smallest radius r3 in a third cross section are larger than the smallest radius r1 in a first cross section, wherein the first cross section is axially forward of the second cross section and the third cross section.
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