Centrifugal Casting Process
What Is Centrifugal Casting?
Centrifugal casting is a viable alternative to hot extruded tubing, forged tubing, rolled and welded tubing. Here’s how the centrifugal casting process works.
- Starting with a rotating die, liquid metal is introduced into the die.
- Because the die is rotating, the g-forces drive the liquid metal against the die walls, which simultaneously begin to freeze the castings from the outside in.
- Shrinkage voids are filled under high pressure from centrifugal force. Slag, dirt and dross, being of lower densities than the metals, spin to the core or center.
- The tubes are machined to remove these nonmetallic impurities that have spun to the center.
Advantages of the Centrifugal Casting Process
The end result of centrifugal casting is a metal part that’s:
Forging vs. Casting
Centrifugally cast metal can be a cost-effective, simple route to near net-shaped manufactured goods. In the right hands, today’s advanced centrifugal casting techniques provide clean, dense end products that meet a wide array of high performance characteristics and volume needs at likely lower costs than forging.