CFRP machining optimised

One aspect of CFRP machining is that the tools available today produce different machining qualities on the workpieces. The user must decide which quality requirements are placed on the part according to the existing material composite and therefore make the ideal tool selection. It is often connection points for which particularly neat edges are required. MAPAL provides two different variants of its milling cutters. The right-hand spiral model produces a pulling effect and thus axial tensile forces, while the left-hand spiral variant has a pushing effect and thus forms compressive forces in the axial direction. The fibre catchers counteract the force created by the respective spiralisation.

The previous model had a third, neutral variant. With further development, this variant is no longer required as the new tools reduce the axial forces by up to 40 percent. As such, the two versions of the new product also assume all tasks for which the neutral variant was previously used. In terms of tool life, quiet running, productivity and cutting quality, the new tools are up to 30 percent better than their predecessors.

Whilst the aviation industry is still recovering from the coronavirus slump, the use of CFRP is growing rapidly in other areas. In addition to automotive engineering and racing, the focus here is shifting to the consumer sector. Manufacturers of sports equipment such as bicycles, skis, snowboards or fishing rods increasingly use the modern material.

With its sharp cutting edges, the OptiMill-Composite-Speed-Plus can also be used to machine thermoplastics and thermosets. As these plastics are not abrasive, coating is not required here and sharp cutting edges are used. The uncoated milling tools replace the previous router tools as they are far superior, especially in terms of cutting quality. MAPAL also recommends the uncoated tools for machining fibreglass materials.