Metal forming analysis — Winter 2025

Explain in detail Terminology of rolling with neat sketch.

Draw and explain stress-strain curve for ductile material.

Briefly explain Forming limit curve with a neat sketch.

Prove Hencky’s first theorem for Slip Lines with usual notations.

Explain blanking and piercing with neat sketch.

Briefly explain the 2-Dimensional Graphical representation of Von Mises’ and Tresca’s yield criteria for plastic deformation

Discuss defects in deep drawing process.

Explain about importance of Upper bound and Lower bound theorem in metal forming.

How do you represent strain hardening effect?

Differentiate open die forging and closed die forging.

Explain Isotropic and Kinematic work hardening with neat sketches

Explain Wire Drawing processes in brief

Discuss direct and indirect extrusion with neat sketch.

Define (i) dry drawing (ii) wet drawing (iii) tube drawing

Discuss forging defects with neat sketch.

Explain the analysis of Strip Drawing process with usual notations.

Define the following terms: (i) Hot forming, (ii) Cold Forming

List various flat rolling processes and discuss any two.

Analysis of compression of circular disc with slab method

What are the common types of extrusion defects.

Why friction measurement is necessary in forming process?

Explain various operations performed on sheet-metal press machine.

Define angle of bite and discuss its effect in rolling process.

Discuss Anisotropy and its effects in deep drawing.

With neat sketch explain the steps of close die forging process.