Question

A hole in a steel casting (SUT = 475 MPa) is to be bored using a carbide insert. The hole is 130 mm in the as-cast condition; the finished diameter is 138 mm. Suggest a cutting speed and feed that will result in the fastest cutting time, and calculate the required power and cutting force.

Answer 1

the maximum cutting speed can be employed is 200 m/min and feed of 0.25 mm/revolution for the given tool work combination.