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Mechanical Engineering - Machine Design - Discussion

Discussion Forum : Machine Design - Section 8 (Q.No. 2)
Machine Design
2.
Which of the following statement is correct ?
The cold rolled shafting is stronger than hot rolled shafting
The hot rolled shafting is stronger than cold rolled shafting
The cold rolled and hot rolled shafting are equally strong
The shafts are not made by rolling process
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.
PATEL said:   3 years ago
Cold working process includes kind of forged hammering work which will directly increase strength due to small or less gap between microstructure.
Thiru said:   5 years ago
The cold working output from the input of High Temperature.
Prashant said:   9 years ago
Yes, friends.

But, in cold working without giving any heat treatment, how can we increased the hardness?
Ravi Birajdar said:   1 decade ago
The cold rolled shafts are strong because, In cold rolling process hardness is increased.
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