Carbon Foam (CFOAM) Composite Tooling
The invention of CFOAM – a strong, low CTE foam – opened up the design envelope for an entirely new class of composite tooling.
Traditional composite tooling uses complex egg crate structures to hold the tooling surface from distorting. It also requires the building of a tool to form the surface of the tool, actually creating the need to build two tools.
To build a durable tool with CFOAM carbon foam, the foam is glued into a block, machined to shape, and a hard composite surface is applied, elminating the cost of building a composite master.
Touchstone has built hundreds of CFOAM tools. They are lightweight, fast to build and low in thermal mass.