Core

DEFINITION

In sculpture / mould-making / casting terms, the core is the solid internal portion of an investment mould for casting a hollow piece of sculpture (such as a portrait). The amount of space left between the core and the mould (occupied by wax before it is "lost), determines the thickness of the cast metal. The core is made of foundry sand (can also be same as investment material) in sand casting and in the lost-wax process.<br><br>A hollow wax sculpture to be cast in metal is filled with clay or plaster with grog (refractory material). The wax can be modeled directly over a preformed core, and after the sculpture is cast, the core is generally removed in order to make the sculpture less heavy. A core might be either an original model pared down, or it might be poured into a hollow wax cast. A core may contain an armature, and it may hold chaplets.Also see direct casting, indirect casting, and lost-wax casting.

Your data and time are valuable. There's a new web browser that considers your time and security as a top priority.

Download Brave Browser For Free!

Brave uses the latest in blockchain technology.

This ensures a higher quality and more secure experience. Learn more about this fantastic breakthrough.

Loads Content Up To 8X Faster

Because Brave blocks unwanted tracking scripts that run in the background, your browsing speed will be unparalleled.

Ultimate in Privacy & Security

Brave fights malware and prevents tracking, keeping your information safe and secure.