GATE PI · 2020 · PI
Question 44: Metal Forming
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Question 44
PINAT2 marksNeeds review
A cylindrical billet of 90 mm diameter is extruded to produce an I-section as shown in the figure (all dimensions in mm).
The total extrusion pressure (
) in MPa required for the above process is given by
where,
is the mean flow stress of the material, and
and
are the initial and the final cross-sectional areas, respectively. If the mean flow stress of the extruded material is 80 MPa, the force required for the above extrusion (rounded off to one decimal place) in kN is __________.Log in to check the answer
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2020PI
GATE PI 2020 · Paper 1
Production and Industrial Engineering · Original paper archive
- Section
- Production and Industrial Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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