A cutter for processing gamma groove frame ring

The utility model provides a cutter for processing gamma groove frame ring, including semifinishing tool matrix and broach shell body, semifinishing tool matrix is rectangular square column structure, semifinishing tool matrix's one end be equipped with that section size changes, and be the kink of contained angle with semifinishing tool matrix, the kink includes a corner portion, the peaceful straight portion of the 2nd corner portion, the 2nd corner portion is lighter than a corner portion and the straight portion acute angle that presss from both sides with straight the acute angle that presss from both sides, is equipped with the tool bit that is used for the cutting at the kink end, adoption screw element screw in cutter arbor fixed orifices is interior and push up tight cutter arbor at the cutter arbor inslot, the processing cutter has improved the reinforcing of whole rigidity, avoids the cutter abrupt change of cross -section to weaken too much whole rigidity, and interferes with the part in avoiding