Horn Cutting Tools Ltd (www.phorn.co.uk) has launched a range of solid-carbide milling cutters designed specifically for machining titanium alloys such as Ti6Al4V.

This comprises cutters with diameters from 2 to 20mm, which are available in four- and five-flute geometries with a cutting-edge length of 2xD and 3xD.

The newly developed grade TSTK that Ringwood-based Horn has introduced is said to offer good tribological properties and high temperature resistance; the material transmits minimal heat into the substrate and acts as a kind of thermal shield.

Further important characteristics of the solid-carbide end mills are ‘alternative helix angles and pitches’ to ensure a softer cut, thereby eliminating vibration and chatter.

As titanium’s low thermal conductivity makes it difficult to remove heat from the point of cutting, a copious supply of coolant directly to the cutting edge is essential.