WALZENSTIRNFRAESER

摘要

The invention relates to a shell end mill with a holder (12), a two-piece cylindrical cutting section (10) releasably secured to the holder (12), at least two helical clamping grooves (18) at a circumferential distance apart in the cutting section (10), a set of substantially radial base support surfaces (22) arranged one behind the other along a clamping groove flank and a plate seat (20) with radially limiting side support surfaces on the groove base side to take indexable inserts (24) in an arrangement of axially overlapping pairs. The inner tips (24) arranged behind the outermost frontal indexable inserts (24') are axially clamped to the plate seats without abutment. In particular, the frontally inoperative cut (42) of the inner indexable inserts (24) engages without abutment in a back-cut (46) in the adjacent plate seat. This design makes it possible to make the base support surfaces (22) of the indexable inserts and the back-cuts (46) engaging with them frontally simply and logically by shell milling in the cutting section (10).