Mapal has introduced a completely new line of solid-carbide end mills – the OptiMill-3D series – which has been specially developed for the tool and mould-making industry. Along with extremely heat-resistant coatings and special carbide substrates, the new cutting tools are characterised by dimensions and geometries specifically adapted to mould making.

Suitable for milling hard parts in the domain of 45 to 66 HRc, the OptiMill-3D-HF-Hardened is offered with four or six cutting edges. Mapal has developed the two variants for high-feed milling on particularly challenging materials. In addition, to optimise performance and longevity on challenging tasks like interrupted cutting, the company has developed special face geometry.
The four-flute tool is the primary choice for roughing and pre-finishing. Available from 2 to 16 mm diameter, the four-flute tool is suitable for long overhang applications such as machining in deep cavities.
Also designed for roughing and pre-finishing, the six-flute series is said to demonstrate impressive characteristics when finishing flat surfaces with a high feed rate. Moreover, with a PVD coating, the tool dissipates heat generation to ensure tool life is prolonged. Available from 6 to 16 mm diameter, the OptiMill-3D-HF-Hardened is complemented by the three and four-flute OptiMill-3D-HF for softer material machining.
Also new to the solid carbide range is the new OptiMill-3D-CR-Hardened with a corner radius. Suitable for finishing 3D mould tools up to a hardness of 66 HRc, this line produces smooth, high-gloss surface finishes when machining at maximum feed rates. Offered in diameters from 4 to 12 mm with accurate corner radii of 0.5, 1 and 2 mm, the PVD coated OptiMill-3D-CR-Hardened is available with a selection of different lengths to suit the machining demands of users.
For further information www.mapal.com