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2.0 CASTING PROCESSES
CHAPTER 2 : CASTING PROCESSES
2.1 INTRODUCTION
Figure 2.1 (a) The Polaroid PDC-2000 digital camera with a AZ91D die-cast, high purity
magnesium case. (b) Two-piece Polaroid camera case made by the hot-chamber die
casting process.
Casting process is among the old process known to mankind, which is discovered since
4000 B.C when man first knew the technique of melting of metals. Various casting processes
have been developed over a long period of time, each with its own characteristics and
applications, to meet the specific engineering and service requirement. From that, many
parts and components are made by casting such as carburetors, engine blocks, crankshafts,
automotive components, agricultural and railroad equipment, pipes and plumbing fixtures,
power tools, gun barrels, frying pans and very large components for hydraulic turbines.
LEARNING OBJECTIVES
The objectives of this unit are to :
1. define the casting process;
2. describe the type of casting;
3. Apply the right casting process to produce the right product.
BPLK 42 DMV 20173
