T-SHAPED CUTTER, RIB-MACHINING METHOD AND AIRPLANE PART

摘要

On the perimeter of a head (14) that is bonded on one end of the shank (12) of a T-shaped cutter, multiple end cutting edge sections (16) with a cutting edge (16a) on the tip side of the T-shaped cutter (10) and multiple upper edge sections (18) with a cutting edge (18a) on the base end side are disposed alternating in the circumferential direction of the T-shaped cutter. The cutting edges (16a, 18a) of the end cutting edge sections (16) and the upper edge sections (18) form an integral structure with the shank (12) and the head (14).

主权项

1. A T-cutter which performs cutting work, said T-cutter comprising:
a shank; and a head which is provided at one end of said shank and which defines a plurality of bottom edge parts which have cutting edges at a distal end side of said T-cutter of an opposite side from said shank and a plurality of top edge parts which have cutting edges at a proximal end side of said T-cutter in proximity to said shank side, the bottom edges parts and the top edge part being alternately arranged in a peripheral direction of said T-cutter; characterized in that the cutting edges of said bottom edge parts and said top edge parts are formed integral with said shank and said head.