reduces tool life
increases tool life
have no effect on tool life
spoils the work piece
The diamond is the hardest tool material and can run at cutting speeds about 50 times that of high speed steel tool.
the ceramic tools can be used at cutting speeds 40 times that of high speed steel tools.
The cemented carbide tools can be used at cutting speeds 10 times that of high speed steel tools.
The ceramic tools can withstand temperature up to 600 degree centigrade only.
remain constant
increases
decreases
first increases and then decreases
made by cold pressing of aluminum oxide powder
available in the form of tips
brittle and have low bending strength
all of these
Ceramic cutting tools are * made by cold pressing of aluminum oxide powder * available in the form of tips * brittle and have low bending strength
cool the tool
improve surface finish
cool the work piece
cutting fluids are used to * cool the tool * improve surface finish * cool the work piece