Why Choose Investment Casting?
At Alcoa Howmet, we have refined the investment casting process to provide our customers with superior products at lower cost.  The investment casting process has distinct advantages over other manufacturing methods.  These advantages include:
 
FLEXIBILITY OF DESIGN:  Investment castings can be manufactured with complex features, such as 3D contours, thin walls and undercuts.
 
CLOSE TOLERANCES AND CONSISTENCY:  Control of process variables results in closer tolerances and excellent product consistency.

HIGH STATIC AND DYNAMIC MECHANICAL PROPERTIES:  Controlled solidification casting techniques yield components with improved mechanical properties.
 
ECONOMICAL FOR PROTOTYPE AND PRODUCTION QUANTITIES:  Prototypes as well as large production runs can be produced economically.  Moreover, by incorporating many functional features into a single casting, the break-even quantity can be lowered significantly.
 
FREEDOM OF ALLOY SELECTION:  Components can be manufactured with the aluminum, titanium, or superalloy best suited to the application.
 
GOOD SURFACE FINISH:  Components can be cast with ultra-smooth surfaces without resorting to expensive secondary operations.
 
LOWER TOTAL COMPONENT COST:  A complex casting with many functional features reduces the number of sub-assemblies and the overall manufacturing cost.
 
ELIMINATION OF MACHINING:  Well-engineered designs that select the most effective and functional dimensioning and tolerancing techniques minimize the need for subsequent machining operations.


The Investment Casting Process


See the Process


View a simplified demonstration of the aluminum investment casting process.
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Read Articles


View journal articles about Alcoa Howmet's investment casting business.
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