Die casting
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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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Die Casting

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Die casting

Die Casting

By Jonathan Gordon and Lee


Die casting

Gravity Die Casting


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 -


Die casting

High pressure die casting


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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