Question $1$

a$)$ State and explain seven $(7)$ principles of manufacturing.

$7$

b$)$ Briefly explain, stating two advantages of each, the following methods of manufacturing:

i$.$ Additive manufacturing, and

$[5]$

ii$.$ Subtractive manufacturing.

$[5]$

c$)$ The cup in Figure Q$1$c shows four features that represent some problems when the cup is machined by conventional methods. Briefly explain how these features present problems when machined by CNC machine. For each feature shown give possible production process for maximum strength and quality.

$[8]$

Figure QIc: Cup