(Solved): You are working as a Special Project Engineer in charge of the new product de ...

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You are working as a Special Project Engineer in charge of the new product design and development process. A company have requested your company to design a new look of hand drilling machine. (a) Discuss in detail how to begin the product design with the recognition of the user's need and ends with a manufactured product that is accepted by customers as being satisfactory in use or service. (10 Marks) (b) The current hand-drilling machine involved a number of complicated parts. As a Special Project Engineer, the simplification of manufacturing and assembly processes is indeed an important task to be considered. You are required to ensure the manufacturing cost to spent effectively. You decided to apply the Design for Manufacturing and Assembly (DFMA) approach to simplify the fabrication processes and cost saving. (i) List the TEN (10) guidelines for applying DFMA. (10 Marks) (ii) Discuss how DFMA is worked for the hand-drilling machine. (20 Marks) (c) The casings of the hand-drilling machine are produced from injection moulding. Explain the manufacturing technologies used to convert raw materials into the finished casing products with good quality. (10 Marks) (d) The side products of injection moulding are flash and scrapped plastic from gating system. They will cause environmental pollution if they are not managed properly. With the aid of diagrams, describe in detail how to recycle the waste products. (10 Marks)