prepare down a critical note on the dissimilar techniques accessible for eliminating dross throughout melting of Aluminium alloys.
prepare down the ideal theoretical shape of the riser. Illustrate your answer in detail with the appropriate sketch.
What factors resolve riser adequacy? What factors determine riser economy?
Illustrate various welding procedures which can be employed for repair of castings.
Provide instances of the typical products of following processes: Precision casting, Die casting, Shell moulding.
prepare down the merits and demerits of carbon di-oxide moulding.
What causes surface shrinkage at the internal angles in the castings? How it can be eradicated?
What do you understand by the term inter dendritic shrinkage and why does it take place?