The
most important requisite of a cutting tool material is
Carbon
percentage
Percentage
of alloying element
Red
(hot) hardness
Easy
fabrication
Red
(hot) hardness
A
cutting tool must have the following properties:
1.
Hot hardness
2.
Toughness
3.
Wear resistance
4.
Chemical stability or Inertness
5.
Shock resistance
6.
Low friction
Hence, the correct option is (C).
&Key Points:-
The
term hot hardness indicates the hardness at elevated temperature. The tool
material must be able to maintain its hardness, wear resistance and strength at
such a high elevated temperature, which ranges nearly 6000c-18000c.
Preparing students for success in a changing World.
We care about our students
RPSC-AE, RSMSSB-JE, SSC-JE, RRB-JE, PSU's