Mechanical Engineering - Production Engineering - Discussion
Discussion Forum : Production Engineering - Section 1 (Q.No. 37)
37.
The correct sequence of tool materials in increasing order of their ability to retain their hot hardness is
Discussion:
16 comments Page 1 of 2.
Kishore said:
2 days ago
Option A is the correct answer.
Shubham agrahari said:
5 years ago
Option A will be the correct answer for it. Since cermet is made up of ceramic and metal so, it will already have improved property in comparison to its parent metal. So cermet has high hot hardness than ceramic.
(2)
Salahuddin said:
5 years ago
Cermets have more hot hardness than carbide.
Biswajit said:
6 years ago
Yes, it's option A.
Shubham said:
6 years ago
Yes, A is correct.
Kumar raja said:
7 years ago
Thank you for the explanation.
Kannan said:
7 years ago
The correct answer should be A.
Raki said:
7 years ago
Hot hardness is the ability of a material to retain hardness at high temperature.
Manu said:
8 years ago
Hot hardness temperature: the max temperature upto which it can absorb without deformation.
Faruk ali said:
8 years ago
CBN is the second bardness tool material. Please, anyone tell me how hot hardness temperature.
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