Investment Casting Process


The investment casting process, also called lost wax casting, is based on one of the oldest known metal-forming techniques. It produces near-net shape parts using the following steps:

  • Wax is injected into a die to produce a pattern
  • Patterns are affixed to a wax runner bar to create an assembly called a “tree”
  • A robot dips the tree into a slurry to build up a ceramic shell
  • The wax is melted out of the shell using heat and pressure
  • The dewaxed ceramic shell is fired at 2000 degrees in a kiln
  • Metal is poured into the fired shell
  • The ceramic shell is knocked off the casting

Because near-net shape parts are created, investment casting saves time and money by reducing the need for secondary operations.

Our production capabilities cover a broad range of both ferrous and non-ferrous metals, including:

Part sizes typically range from one ounce to as much as one hundred pounds for a wide range of the toughest industrial applications, such as:

We have the capacity to handle both large and small-volume runs, as well as prototypes.

Click here to read more about investment casting and its benefits and advantages or contact us today for the assistance you need with  your next project.
Avalon Precision Metalsmiths is now part of Sigma Engineered Solutions. Learn more about Sigma's full range of casting capabilities:
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