Question

A straight turning operation is carried out using a single-point cutting tool on an AISI 1020 steel rod. The feed is 0.2 mm/rev and the depth of cut is 0.5 mm. The tool has a side cutting edge angle of 60°. The uncut chip thickness (in mm) is ______

Answer 1

Concept:

For single point cutting tool, the uncut chip thickness,

⇒ t = f sin λ  

∵ λ + c_s = 90° 

⇒ t = f cosc_s      ...(1) 

Where,

λ = The approach angle. cs = The side cutting edge angle, f =  feed

Calculation:

Given: 

f = 0.2 mm/rev, Cs = 60°, d = 0.5 mm

Using equation (1),

⇒ t = 0.2 × sin (90-60)

⇒ t = 0.1 mm