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Manufacturing Process Selection Handbook by J. D. Booker, K. G. Swift

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Chapter 4

Forming Processes

4.1 Forging

Process Description

Hot metal is formed into the required shape by the application of pressure or impact forces causing plastic deformation using a press or hammer in a single or a series of dies (Figure 4.1(a)).

image

Figure 4.1(a) Forging.

Materials

• Mainly carbon; low alloy and stainless steels; aluminium; copper; and magnesium alloys. Titanium alloys, nickel alloys, high alloy steels and refractory metals can also be forged.

• Forgeability of materials important; must be ductile at forging temperature. Relative forgeability is as follows, with easiest to forge first: aluminium alloys, magnesium alloys, copper ...

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