| 摘要 |
<p>An arrangement has been provided for the fastening of cutting inserts on an insert holder with or without a shim. The bottom side of the cutting insert and the support surface of the shim or of the insert holder are shaped with inter-fitting ribs and grooves for stabilizing the cutting insert. The bottom side of the insert has grooves (12, 12', 12'') and substantially planar portions (14) between said grooves, and said support surface (15, 15', 15'') has a portion with ribs (13, 13', 13''), which ribs are intended to be accommodated in a corresponding number of grooves of the cutting insert. At least a part of the planar portions (14, 14', 14'') functions as bearing surfaces for the cutting insert against parts of the support surface (15, 15', 15'') which do not have ribs. With this construction, a very strong and stable fastening has been achieved, without any high demands on dimension tolerances.</p> |
