What is "Lost Wax" Investment Casting?
||Lost Wax Investment Casting
casting is an advanced metalforming process used to produce metal
parts of the highest quality, functionality and cost-effectiveness.
Investment casting is a one-to-one process in which one disposable
pattern produces one metal part. When combined with modern production
knowledge and technologies, investment casting can be applied to
produce parts of varying degrees of complexity, in virtually any
volume and for the broadest possible spectrum of applications.
Is investment casting an expensive process?
A highly versatile casting process,
investment casting has for some time been perceived as a comparatively
expensive process. But when compared to alternative processes which
require extensive welding or machining, an investment cast component
can often dramatically reduce overall part production costs.
What is the history behind investment casting?
Investment casting, which is also known
as the "lost wax investment casting " process, traces its roots to the Sang
Dynasty in China from 1766 B.C. to 1122 B.C. The method was brought
into modern industrial use when American manufacturers applied investment
casting to make high quality military parts during World War II.
It was found practical for many wartime needs - and during the postwar
period it expanded into many non-aircraft applications. Today, investment
casting is recognized and used worldwide as a technique for producing
close-tolerance metal parts at highly competitive costs.
Investment casting when performed by experienced and knowledgeable
- Allows greater design freedom for
very simple to highly complex parts
- Provides superior repeatability
- Can utilize a wide variety of alloys
- Yields lighter, stronger metal parts
with superior finishes
- Reduces labor, tooling and machining
- Allows very rapid prototype development
Of course, investment casting is not
the appropriate process for every metal part requirement. However,
part applications, investment casting offers a proven and cost-effective