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  Aluminum  
   
  CAPABILITIES
   
  High Pressure Aluminum Die Casting?
 

High pressure die casting is a manufacturing process in which molten metal (aluminum) is injected with a die casting machine under force using considerable pressure into a steel mold or die to form products.

Because of the excellent dimensional accuracy and the smooth surfaces, most high pressure die castings require no machining except the removal of flash around the edge and possible drilling and tapping holes. High pressure die casting production is fast and inexpensive relative to other casting processes.

There are several aluminum alloys DomCast can provide with different mechanical properties and chemical breakdowns. Aluminum is used in 80-90% of the high pressure die casting alloys available in the world today. In many cases aluminum high pressure die casting can replace steel, increasing strength and reducing part weight. We produce high pressure die casting parts in small sizes of less than an ounce up to large sizes of 10 pounds. We usually can produce and ship high pressure die casting parts within four weeks of receipt of your purchase order.

   
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  ALLOY CHARACTERISTICS
 

Aluminum die casting alloys

360

380

383

413

Hardness

75

80

75

80

Elongation (% in.2 in.)

2.5

3.5

3.5

2.5

Shear Strength (ksi)

28

28

-

25

Tensile Yield Strength (ksi)

25

23

22

21

Ultimate Tensile Strength (ksi)

44

46

45

43

Thermal Conductivity

65

56

56

70

Electrical Conductivity (% copper)

30

27

23

31

Density (weight) Lbs./ in.3

0.095

0.099

0.099

0.096

   
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  ALLOY ADVANTAGES
 

Aluminum die casting alloys

360

380

383

413

(1= most desirable, 5= least desirable):

 

 

 

 

Pressure Tightness

2

2

2

1

Die Filling Capacity

3

2

1

1

Anti-Soldering to Die

2

1

2

1

Corrosion Resistance

2

4

3

2

Machining ease & quality

3

3

2

4

Strength at high temperatures

1

3

2

3

Material cost

3

1

2

4

   
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  ALLOY MATERIALS
 

Aluminum die casting alloys

360

380

383

413

Silicon (Si)

9.0-10.0

7.5-9.5

9.5-11.5

11.0-13.0

Iron (Fe)

2.0

2.0

1.3

2.0

Copper (Cu)

0.6

3.0-4.0

2.0-3.0

1.0

Manganese (Mn)

0.35

0.50

0.50

0.35

Magnesium (Mg)

0.4-0.6

0.10

0.10

0.10

Nickle (Ni)

0.50

0.50

0.30

0.50

Zinc (Zn)

0.50

3.0

3.0

0.50

Tin (Sn)

0.15

0.35

0.15

0.15

Others

0.25

0.50

0.50

0.25

Aluminum (Al)

Balance

Balance

Balance

Balance

   
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