The fundamental goal of a ____ process is to produce a product that has a useful ____. There are three stages in the manufacturing process: to change the physical ____ of the ____ material, to change the ____ and size of the ____ , to achieve the required ____ accuracy (tolerances) and surface ____. ____ - Used to change the ____ and shape of a workpiece. ____ - A mechanical process which use force to change the ____ of a workpiece. ____ - Alters the ____ of a manufactured part. ____ - Molten material (e.g., metal) is poured into a mould that contains a hollow ____ of the exact required shape. The forming process is a large part of the manufacturing process where a ____ material is converted into a ____. In this process, ____ like tension, ____ and shear are applied. The ____ of the material in the finished component are also influenced to a considerable extent by the type of ____ process employed. ____ processes alter the surface of manufactured parts in order to achieve a particular ____. Commonly desired characteristics include: improved ____, adhesion, solderability, chemical, corrosion, tarnish or ____-resistance, hardness, electrical ____, flaw removal and surface ____ control The ____ process involves the use of molten liquid, which is poured into a mould that takes the form of the finished part. The liquid then cools, with heat generally being ____ via the mould, until it ____ into the desired shape. Although this describes a relatively simple process, casting is generally quite complex and highly skilled, in particular in metal casting, due to the complex ____ involved. Casting processes can be broken down into two broad categories. ____ mould processes: the moulds are ____ in order to remove the casting (eg, sand moulds, ____ casting). ____ mould processes: the mould is ____ and must therefore be designed to allow the easy removal of the casting (eg, metal moulds). A ____ is a replica of the object to be ____, made from wood, metal, plastic or another material, which is used to prepare the ____ into which molten material will be poured during the casting process.

Unit 1 Session 1 Recap

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