Attribute

Sand Casting

Gravity die Casting

Low Pressure Die Casting

High Pressure Die Casting

Potential Casting Soundness

High

4

High

4

High

5

Low

2

Mould Filling

Turbulent

2

Turbulent

2

Smooth Bottom-filled

5

Very turbulent

0

Cover Gas Management

Difficult

2

Difficult

2

Difficult and costly

1

Easy

5

Sand Cores for Hollow Features

Yes

5

Yes

5

Yes

5

No

0

Typical Casting Yield (%)

50%

1

60%

2

85%

4

60%

2

Cycle time

Very Long

0

Long

2

Medium

3

Short

5

Heat Treatable Castings

Yes

5

Yes

5

Yes

5

No

1

Weldable Castings

Yes

5

Yes

5

Yes

5

No

0

Operating Cost

Low

5

Low

5

Medium

2

Medium

2

Tooling Cost

Low

5

Low

3

Low/Med

3

High

1

Machine Cost

Very Low

5

Low

4

Low/Med

3

Very High

0

Total Score

39

39

41

18