The correct sequence of tool materials in increasing order of their ability to retain their hot hardness is
A. Carbide, ceramic, cermet, borazon
B. Ceramic, carbide, borazon, cermet
C. Cermet, carbide, ceramic, borazon
D. Borazon, ceramic, carbide, cermet
Answer: Option C
Join The Discussion
Comments ( 2 )
Related Questions on Manufacturing and Production Technology
The carbide tools operating at very low cutting speeds (below 30 m/min)
A. Reduces tool life
B. Increases tool life
C. Have no effect on tool life
D. Spoils the work piece
The type of reamer used for reaming operation in a blind hole, is
A. Straight fluted reamer
B. Left hand spiral fluted reamer
C. Right hand spiral fluted reamer
D. Any one of these
High speed steel tools retain their hardness up to a temperature of
A. 250°C
B. 350°C
C. 500°C
D. 900°C
Hot hardness is the ability of a material to retain hardness at high temperature. Option a is correct
option A is right answer