A rigid iron or steel armature embedded inside a sand core to give it structural strength. It prevents the core from bending, breaking, or floating under the immense pressure and buoyancy of the molten metal during pouring.
Heard on the job
Make sure the stalk is seated firmly in the core print so the core doesn't shift when the iron hits it.
Also heard as
- core arbor
- arbor
Related terms
Core print
A projection on a casting pattern that creates a seat in the mold to hold a sand core securely.
Corebox
A mold used to shape and pack sand into a solid core for creating internal cavities in a casting.
Loam
A coarse moulding material made of sand, clay and organic matter used for sweeping large castings.