Tooling boards are excellent products for machining, being dimensionally stable, it is easy to create complex and intricate designs. The process of creating the machined parts is a critical part of the manufacturing process. It is critical the finish of the product is clean, smooth, and fit for purpose. Polyurethane and Epoxy Tooling board machining products are a good choice for a long-lasting yet mouldable material used across many industries, commonly for prototyping and testing designs.
The Tooling Board Machining Process Explained
The example below summarises how high-temperature tooling board can be finished using CNC machining.
- Bonding – Layers of tooling board and high-temperature adhesive are stacked together to bond and form a strong block. This is usually vacuum bagged to ensure there are thin board lines, which is then cured and prepared for CNC machining
- Tooling board machining – an initial ‘rough cut’ is performed using larger CNC machines and routers. 1-3mm of materials is left to be finished via filling and sanding.
- Prepreg & Curing – The tooling board surface area is prepared and piles of prepreg are applied on top and vacuum bagged. The curing process then begins.
- Finishing – After the cure has been completed, the tooling board goes through the final machining and polishing stage. Any structural support that is needed is attached, and the surface is then sealed.