How is the strength of the material, which is to be rolled, reduced?(a) Rolling at low temperatures(b) Rolling at high temperatures(c) Treating with ozone(d) Treating with carbonI got this question by my school teacher while I was bunking the class.Enquiry is from Principle of Roll Pass topic in portion Forming Process of Casting-Forming-Welding II

How is the strength of the material, which is to be rolled, reduced?(a

1.	How is the strength of the material, which is to be rolled, reduced?(a) Rolling at low temperatures(b) Rolling at high temperatures(c) Treating with ozone(d) Treating with carbonI got this question by my school teacher while I was bunking the class.Enquiry is from Principle of Roll Pass topic in portion Forming Process of Casting-Forming-Welding II
Answer» Correct answer is (b) Rolling at HIGH temperatures Best EXPLANATION: When the MATERIAL to be squeezed is rolled at high temperatures, the strength of the material is FOUND to decrease.

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