Cold Forming

• Drawing (Sections, Wire, Tube)

• Heading

• Rolling

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Slabs of metal are passed through a series of rolls, each pass reduces the thickness of the material increasing its strength, but reducing its ductility.

NB only a limited number of passes can be made before the material has to be annealed.

Hard rolled brasses have better ductility longitudinally in line with the rolling direction rather than in the transverse direction. Advantage should be taken of this when designing springs or other flexible parts.