Manufacturing Process (ME-305) - Important Questions

Explain the role of gating, runners and risers in casting and how their design influences quality, efficiency and cost-effectiveness of the final cast product.

Explain molding sand and discuss the different types of foundry sands and their properties used in foundry practice.

Explain the various types of casting processes and their applications with suitable examples.

Explain the Thermit welding process, including chemical reactions, essential conditions for a successful weld with neat sketches.

Discuss electrode polarity and compare AC vs DC welding in terms of machine characteristics, weld bead geometry, penetration and overall weld outcome.

Enlist common welding defects with their causes and suitable remedies to ensure high-quality welds.

Define forging and explain the different types of forging operations/processes with sketches, theory and applications.

Explain what pattern allowances are, their purpose, types with examples and effect on final casting.

Explain the factors affecting pattern design and the use of cores and core boxes in pattern making.

Explain with neat sketches the construction and operation of drop forging and horizontal forging machines.

Explain the construction and working/operation of hydraulic press and pneumatic press in manufacturing.

Compare hot rolling vs cold rolling techniques, including process differences and effects on material properties.

Explain the classification and general description of machines, mills and processes used in rolling operations.

Explain shearing, punching, piercing, blanking and trimming operations in press working.

Explain the working principle, components and operations of a lathe machine with a neat sketch.

Give general introduction, working principles and role of milling, grinding and drilling machines in metal machining.