Tooling in metalcasting and CNC machining refers to reusable items that are specific to each job. In investment casting, tooling is considered to be wax-injection dies used to create wax patterns.
Columns: Designer's edge
3D sand printing produces sand mold components without any pattern or core box equipment. The process essentially makes sand molds without the middleman.
A common casting structural design question falls along the lines of this: We are aware of safety-critical, long strain life castings in challenging structural applications.