4.8.4

Metals: Joining, Casting & Heat Treatment Process

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Joining, Casting, and Heat Treatment Processes

Joining, casting and heat treatment are a few processes used in metal.

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Joining

  • Joining processes are used to connect metal components together.
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Joining processes

  • Common joining processes:
    • Welding - melting and fusing metal pieces together using heat.
    • Soldering - joining metal pieces using a lower melting point filler metal.
    • Adhesive bonding - using adhesives or glue to bond metal components together.
    • Brazing - joining metal components by melting a filler metal with a lower melting point.
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Casting

  • Casting processes involve pouring molten metal into a mould and allowing it to solidify.
    • Casting is used to create a desired shape.
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Casting processes

  • Common casting processes include:
    • Sand casting - using a mould made of sand to create complex metal shapes.
    • Die casting - pouring molten metal into a reusable mould under high pressure.
    • Investment casting - creating detailed metal parts by using wax patterns and ceramic moulds.
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Heat treatment

  • Heat treatment processes are used to alter the physical and mechanical properties of metal materials.
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Heat treatment processes

  • Common heat treatment processes include:
    • Annealing - heating metal to a specific temperature and then cooling it to soften or relieve internal stresses.
    • Quenching - rapidly cooling metal from a high temperature to increase its hardness or strength.
    • Tempering - reheating quenched metal to a specific temperature and then cooling it to improve its toughness.

Jump to other topics

1Core Technical Principles

2Paper & Board: Specialist Technical Principles

3Timber: Specialist Technical Principles

4Metal: Specialist Technical Principles

5Polymers: Specialist Technical Principles

6Textiles: Specialist Technical Principles

7Designing & Making Principles

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