When To Use Investment Casting

External shaping and tight tolerances exist

 

Parts are shaped or non-symmetrical with fine detail

 

Multiple and/or intricate internal passageways in design

 

Dimensions are small to medium, typically under 1,000 lbs./454 kg

 

Excellent as-cast surface finish is required

 

Wall thickness is too thin for sand casting

 

High upfront tooling costs relative to sand casting are acceptable

 

Low volume allows printed patterns to replace upfront tooling

 

Ongoing tool maintenance costs are not desired

 

Machining of internal passageways is not possible

 

When To Use Investment Casting

 

External shaping and tight tolerances exist

 

Parts are shaped or non-symmetrical with fine detail

 

Multiple and/or intricate internal passageways in design

 

Dimensions are small to medium, typically under 1,000 lbs./454 kg

 

Excellent as-cast surface finish is required

 

Wall thickness is too thin for sand casting

 

High upfront tooling costs relative to sand casting are acceptable

 

Low volume allows printed patterns to replace upfront tooling

 

Ongoing tool maintenance costs are not desired

 

Machining of internal passageways is not possible