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A 3.5- in . diameter bar of SAE 1020 steel is to be turned to a 3- in . diameter in one cut, using cutting

A 3.5 -in. diameter bar of SAE 1020 steel is to be turned to a 3 -in. diameter in one cut, using cutting fluid. A feed of 0.028in.rev /will provide a satisfactory surface finish and a tool life of 145 minutes is desired.

Determine the cutting speed (in rpm) that will accomplish the cut if 14-4-1 HSS tool is to be used.

what is the recommended following angles:

a. Side relief angle:

b. End relief angle:

c. Back rake angle:

d.Side rake angle:

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