Question

Discuss the general features, the capabilities and the limitations, advantages and disadvantages of ONE of the following classes of processes for the production of engineering components. Ilustrate your answer with reference to one specific technique taken from that class. 2 (a) (i) Casting (and moulding) (i) Forming (ili) Powder processing (iv) Fabrication. [10 marks] Explain why most engineering components receive some form of surface treatment during their production. Distinguish between the two main classes of surface treatment, illustrating each one with a specific technique from that class. (b) [4 marks] (c) The flowsheets(0) - (i) below represent the production of three engineering components. Suggest optimum processing methods to fill in the blanks A F. Take care that you suggest an appropriate processing technique for each, not a class of processes. () An alloy steel open ended spanner: Quenching and Surface Flash removal GrindingElectropleting (i) A 13 mm diameter copper water pipe Coppercasting melting Extrusion Annealing Colling (ili) An aluminium alloy beverage can body: Cold Hot RollingRolling lanking melting End Forming Ironing Trimming 2 marks each] Turn ua

Answer 1

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