Answer is:
all of these
Explanation:
In machining metals, surface roughness is due to
* feed marks or ridges left by the cutting tool
* fragment of built-up edge on the machined surface
* cutting tool vibrations
Answer is:
all of these
Explanation:
The surface finish is improved by the increase in
* cutting speed
* nose radius
* true rake angle
Answer is:
increasing the depth of cut
Answer is:
all of these
Explanation:
The tool material, for faster machining, should have
* wear resistance
* red hardness
* toughness