Router geometry optimised for CFRP

CoroMill Plura routers unveiled by Sandvik Coromant are designed to offer optimised milling and slotting operations in composite materials such as CFRP and GFRP. According to the company, customers will benefit from the patented geometries featured on the new routers.

When milling and slotting composite materials, the CoroMill Plura routers are used primarily in full radial engagement and at full depth of cut. In some cases, finishing passes can also be deployed. Helix angles have been carefully designed for sharpness and cutting edge strength, helping to ensure longer tool life and high-quality surface, edge and slot finishes. The range comprises three cutters: the CoroMill Plura compression router, CoroMill Plura low-helix router, and CoroMill Plura serrated router.
The CoroMill Plura compression router, with its dual 40° helix, works best with special woven glass layers on both sides of CFRP components. As there is an overlap between compressed flutes, the router performs well in thin, flat materials by reducing material vibration.
Specifically designed for smooth and burr-free finishing passes in CFRP workpieces, the CoroMill Plura low-helix (5°) router features a high number of teeth and a coating that is designed to facilitate quick cutting and protection from heat. Right- and left-helix options allow flexibility in material with challenging support conditions, such as weak or compromised fixtures.
Finally, the CoroMill Plura serrated router, with its large flute form, is designed for very high material removal rates. The geometry also offers a dual cutting action to reduce delamination and vibration, ultimately providing a single-pass solution to minimise stress on composite parts.
All three CoroMill Plura routers can be used with or without coolant.
For further information