Question 4 (15 marks) a) Explain 1 disadvantage of machining process. (3 marks) b) Machining process is the removal of material from a starting workpart so that the remaining part has the desired geometry. Give 2 advantages of machining process compared to additive manufacturing technology. (4 marks) Figure 2: Aluminium bracket c) Figure 2 shows an aluminium bracket. The surface circled in the figure requires a smooth surface finish to ensure correct assembly. Your factory needs to manufacture 1000 units of the bracket. i) Explain which manufacturing process would you use to obtain a smooth surface finish as shown in the surface circled in Figure 2. (4 marks) ii) Explain how would you increase the sustainabilty of the manufacturing process chosen in question c (i). Give ideas Page 3 / 6 Q (4 marks) +

Fig: 1