There is indexable double negative cutting insert and the cutting element of prominent side abutment surface

摘要

A kind of indexable double negative cutting insert (14), its periphery side surface (38) for including indexable axis (A), two relative end faces (36), extending therebetween, and the opposite side cutting edge (46) being formed between end face (36) and periphery side surface (38).Midplane (P) is located in the middle of end face (36), through periphery side surface (38), and perpendicular to indexable axis (A).Periphery side surface (38) includes at least one raised (54), and which extends along outwardly direction with regard to indexable axis (A) in plan view of face (36) at either end.Raised (54) include the two side abutment surface (60) that assembles along outwardly direction towards midplane (P).In each section of midplane (P), section through relative side cutting edge (46) and also extends through at least one raised (54), and the part without outer surface (38) is in the imaginary line (L1) for connecting relative side cutting edge (46).