TURNING BLADE FOR STAINLESS STEEL FLANGE

摘要

A turning blade for a stainless steel flange, comprising a blade body (1) having a polygonal shape. The blade body (1) is provided with multiple protrusions I (17) along the periphery of a positioning hole (18) and protrusions II (19) located at the outer side of two adjacent protrusions I (17); the point angle of the blade body (1) is provided with a cutting unit (A); the cutting unit comprises a main cutting edge (7), an arc cutting edge (6) and a chip breaking unit (B). The chip breaking unit (B) consists of a first chip breaking table (15), a first rake face (8), second rake faces (9, 12), a chip breaking groove bottom plane (10), a chip pocket (13) and a "half-moon-shaped" projection (14); the angle between the edge width at the arc cutting edge (6) and a first hook angle is greater than the angle between the edge width at the main cutting edge (7) and the first hook angle. Both edge sharpness and edge strength are guaranteed for the turning blade; the designs of dual-chip breaking tables and the "half-moon-shaped" projection allow the turning blade to have a good chip breaking effect in rough machining and fine machining a stainless steel flange.