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Reference Tables -- Metal Casting Quick-Comparison Chart

 

Metal Casting Quick-Comparison Chart
 

Sand Casting

Permanent Molding

Die Casting

Ceramic & Investment Casting

Resin Shell Molding CO2 Nobake Molding

Dimensional Tolerances

.010" .030"

.010" .050"

.001" .015"

.010" .020"

.005" .015"

Relative Cost - High Part Quantity

Low

Low

Lowest

Highest

Med. High

Relative Cost - Low Part Quantity

Lowest

High

Highest

Medium

Med. High

Casting Weight Range

Unlimited

oz. - 100 lb

oz. - 75 lb

Ceramic -
3-350 lb.
Investment -
oz. - 100 lb

Shell (oz.-200 lb.)
CO2 & Nobake
(.5 lb-tons)

Minimum Wall Thickness

1/10"

1/8"

1/32"

1/16"

1/10"

As Cast Finish
(RMS)

150 - 350

150 - 200

63 - 90

60 - 125

125 - 200

Draft Angle
(Degrees)
1 - 5 2 - 4 1/2 - 2 1/4 - 1/2 1/4 - 1

Design Complexity/Detail

Fair-good

Fair

Good

Best

Good

Relative Ease of Design
Changes In Production

Best

Poor

Poorest

Fair

Fair

Castable Alloys

Most Ferrous / Non-ferrous Metals.

Al-base & Cu-base Preferred

Al-base Preferred

Most Ferrous / Non-ferrous Metals.

Most Ferrous / Non-ferrous Metals.

 

 

 

 

 

 

 

 


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