Metal cutting
Previous year question paper with solutions for Metal cutting
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- What are the different types of clays? Discuss about the colloidal behaviour of clays used in foundry
- Describe bonding mechanism of silica-water-clay system. What is A.F.S Clay and clay content test?
- Explain the effect of silica sand grain shape and size distribution on permeability and strength of moulding sand. What are the types of cores used in green sand mould casting?
- What do you understand by metal penetration? Discuss its causes and remedies.
- What is the difference between true centrifugal casting and semi centrifugal casting? Explain with the help of diagram
- What is constitutional super cooling of alloys? How it is affected by range and rate of solidification?
- With the help of a diagram explain the working of a vacuum casting process. List its main advantages. How this process differs from full mould process?
- What is aspiration of gases? How it is prevented during casting of metal? Also write the main requirements of a good gating system.
- What do you know about directional solidification in castings? Why is it essential and how it is achieved for a sound casting?
- What are the main functions of a riser in casting? How risers are designed for castings? What are the essential conditions that are to be kept inmind while designing risers?