FIELD: process engineering.
SUBSTANCE: proposed cutter comprises body furnished with mechanically clamped changeable multi-face fluted cutting plate. Said plate has six cutting edges arranged on single-radius circumference with curved asymmetric faces each being formed by convex and concave surface with radii: rd=(0.4÷0.8)H, Ra=(0.35÷0.45)Dl respectively, and height H=(0.25÷0.45)Pc. Not here that radius Ra forms rear of adjacent face inclined at λ=3° to cutting axis where Dl is diameter of cutting ledges, Pc is cutting ledge pitch while body seat is formed by recess including intersection of mounting planes whereto adjoin rear surfaces of faces of said cutting plate. Said seat is provided with eccentric shifted by magnitude of radial adjustment of cutting edge to cutting size.
EFFECT: longer service life.
2 dwg
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