Dormer Tools stand the heat

An innovative new range of tools has been launched by Dormer, specifically for machining Heat Resistant Super Alloys (HRSA).

The Elect S drill range is ideal for use with high temperature resistant alloys such as Titanium, Inconel and Waspalloy, which can otherwise be difficult to machine. This is partly due to the fact that they generate high cutting forces during machining, leading to excessive pressure and heat, which in turn tends to result in work hardening. Also, because they are able to withstand high temperatures, the heat generated during drilling is retained within the workpiece and transferred to the tool, and can result in premature drill failure.

The new Elect S drills overcome these problems by incorporating internal coolant openings, plus a body back taper that promotes a free, continuous cutting action, giving high quality, accurate holes. A self- centring 140º point angle, cylindrical margin and positive cutting edge geometry also help to minimise frictional cutting forces, leading to consistent tool performance and minimal work hardening. Similarly, a Smooth-Flow coating acts as a thermal barrier, protecting the substrate from the extreme heat generated at the cutting edge. This also has a low coefficient of friction, resulting in smooth and efficient chip evacuation and, in turn, extended tool life.