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Die Casting. By Jonathan Gordon and Lee. Gravity Die Casting. Gravity die casting process. Mazak, an alloy of Zinc and aluminium, is first melted in a crucible furnace. Molten metal is then poured by ladle in to an open steel mould where it is allowed to cool and solidify.

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Presentation Transcript
die casting

Die Casting

By Jonathan Gordon and Lee

gravity die casting process
Gravity die casting process
  • Mazak, an alloy of Zinc and aluminium, is first melted in a crucible furnace.
  • Molten metal is then poured by ladle in to an open steel mould where it is allowed to cool and solidify.
gravity die casting process1
Gravity die casting process
  • The mould is then turned upside down and tapped with a hammer to release the finished casting.
  • Gravity die casting requires minimal finishing and waste as minimal because excess metal can be melted down and used again.
things that you may recognise
Things that you may recognise
  • Things that are made from gravity die casting are:
  • Toaster -
  • Lawnmowers -
  • Car wheel rims -
identifying the process
Identifying the process
  • When something has been created by gravity pressure die casting there would be:
  • Section hair lines
  • ejector pin marks
  • sprue and runner marks
materials
Materials
  • The materials used in gravity die casting is a mixture of Zinc and aluminium.
  • Zinc -
  • Aluminium -
high pressure die casting
High Pressure Die Casting
  • Forcing metal under high pressure to form a mould.
  • These moulds are called dies and are made from steel.
  • This produces non-ferrous metals.
materials used
Materials used
  • Metals that are commonly used are also:

Aluminium -

Zinc -

what is made from the process
What is made from the process
  • In this process you can make:
  • Golf club heads -
  • Car engine blocks -
  • Radiators -
high pressure die casting process
High pressure die casting process
  • First the mould is sprayed with lubricant and closed.
  • Molten metal is then injected into

the mould under high pressure.

high pressure die casting process1
High pressure die casting process
  • Once the cavity is filled, the pressure is kept at a steady level until the casting has become solid.
  • Finally, the die is opened and the casting

is injected.

identifying the process1
Identifying the process
  • When something has been created dy high pressure die casting there would also be:
  • Section hair lines
  • ejector pin marks
  • sprue and runner marks
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