GATE MT · 2025 · MT
Question 64: Hot, warm and cold working of metals
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Question 64
MTNAT2 marksNeeds review
A cylindrical Al alloy billet of 300 mm diameter is hot extruded to produce a cylindrical rod of 75 mm diameter at a constant true strain rate (
) of
. The flow stress (
) of the alloy at the extrusion temperature is given by
.Assume the alloy is perfectly plastic and there is no temperature rise during the extrusion process.
The ideal plastic work of deformation per unit volume is _____
(rounded off to one decimal place).Log in to check the answer
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2025MT
GATE MT 2025 · Paper 1
Metallurgical Engineering · Original paper archive
- Section
- Metallurgical Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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