Define: (i) Hot forming (ii) Cold forming (iii) Worm forming
[3 marks]Explain forming limit diagram in brief.
[4 marks]Explain in detail Two-Dimensional Mohr's circle method for stress analysis.
[7 marks]Why is friction essential in the forging process?
[3 marks]Describe effects of work hardening on mechanical properties of material
[4 marks]Describe Upper bound and Lower bound theorem in metal forming.
[7 marks]State and prove Hencky’s first theorem for Slip Lines with usual notations.
[7 marks]Define: (i) Dry drawing (ii) Wet drawing (iii) Tube drawing
[3 marks]What are the benefits of hydrostatic extrusion?
[4 marks]Explain various forging operations with neat sketches.
[7 marks]Differentiate direct & indirect extrusion.
[3 marks]Explain wire drawing process in brief.
[4 marks]Derive equation for rate of work done due to deformation for compression of strip.
[7 marks]What is Draw ability? Enlist Factors affecting Draw ability.
[3 marks]Explain various rolling defects.
[4 marks]Derive equation for Rolling load using slab method with usual notations.
[7 marks]How is impression die forging different from closed die forging?
[3 marks]Define angle of bite. What is its effect on the rolling process?
[4 marks]Discuss analysis of strip rolling.
[7 marks]What is the difference between punching & blanking operations?
[3 marks]Explain spring back effect in the bending process.
[4 marks]Explain various operations performed on sheet-metal press machines.
[7 marks]State difference between compound & progressive die.
[3 marks]Define nesting and explain why it is used in sheet metal operation.
[4 marks]What do you understand about anisotropy of sheet metal? How do you measure it?
[7 marks]