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Aluminium Pressure Die Casting

Aluminium Pressure Die Casting

  • Categories:Casting
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  • Time of issue:2019-10-29 10:08
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(Summary description)

Aluminium Pressure Die Casting

(Summary description)

  • Categories:Casting
  • Author:
  • Origin:
  • Time of issue:2019-10-29 10:08
  • Views:
Information

Die casting can refer to any kind of casting using a die such as gravity die casting or low pressure die casting, yet here die casting only refer to high pressure die casting. Aluminum die casting is a process of casting Aluminum alloy under pressure, which can produce precision parts in high volume at low costs.

1. Advantages of die casting process

1.1 high volume but low cost Compared with aluminum sand casting and gravity casting, aluminum die casting can produce precision parts in high volume at low costs.

1.2 good surface finish and good dimensional accuracy,Aluminum die casting generally has good surface finish and good dimensional accuracy. For many parts, post-machining can be totally eliminated, or very light machining may be required to bring dimensions to size.

2. Disadvantages of die casting process

2.1 higher cost of die casting mould, The cost of tooling of die casting is much more expensive than those as sand casting, gravity casting and investment casting.

2.2 high porosity, Though the porosity of die casting can be adjusted by using much higher pressure with a much larger and heavier mold, the porosity can not be avoided and is much more than that is made with low pressure casting and gravity casting. Furthermore,porosity leads die casting parts to be not suitable for heat treatment.Thus the consistence can not be compared with gravity castings.

Following list is the general material used for pressure die casting according to different country standard.

 

Aluminum Alloy Commerdal Standard Equivalent Alloys or dose sub strtutes
ANSI AA BS1490 DIN1725/2 JIS
413.2 American 413.2 LM6 GD-ALSi12  
A360 American A360.1 LM9   ADC3
A380 American A380.0 LM24 GD-AISi8Cu3 ADC10
384 American 384     ADC12
ADC12 Japanese 383.0/384.0     ADC12
GD-AISi9Cu3 German   LM2 GD-AISi9Cu3  
GD-AISi12(Cu) German A413.0 LM20 GD-AISi12(Cu) ADC1

 

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