In this process, molten metal is poured into a pre-heated semi-permanent/permanent die (mold) from a ladle or transfer vessel.
The force of gravity fills the die with minimum turbulence through one or more channels to reduce oxidation and foaming.
This minimizes porosity and inclusions, giving optimum metal characteristics in the final casting.
The hardened metal dies used in gravity die casting enable the molten metal to cool and solidify quickly. This produces a fine grain structure, giving gravity cast parts excellent mechanical attributes like strength and stiffness. Such parts are also suitable for heat treatment.
Because the metal dies can be re-used, this ensures casting repeatability and allows for multiple casting cycles over longer time periods. The process is economical for, and adaptable to, short-run, medium-run, and mass production.
Gravity die casting is highly suited to automation and the productivity gains that come with that. With various automated cell configurations possible, metal casters of any size can benefit.
Don’t be. Simply by telling us your production needs, we’ll tailor and automate a carousel, linear or flexible gravity die casting set-up that’s perfect for you. Watch the video on our dedicated GDC page and you’ll see what we mean.