Enhancing productivity in die and mould machining

Posted on 08 Dec 2018 and read 544 times
Enhancing productivity in die and mould machining The family of ‘economical milling tools’ available from Chesterfield-based Dormer Pramet (www.dormerpramet.com) has been enhanced by several new ranges for semi-finishing and finishing in die and mould machining applications.

Featured are various CNHX05 double-sided inserts with up to four cutting edges and patented wiper edges that produce a high-quality surface finish and result in reduced machining time in both shoulder-milling and face-milling applications.

These inserts are complemented by a range of SCN05C cutters for the productive copy milling of steels, hardened steels and cast irons.

Available in diameters from 12 to 20mm, the tools have a close pitch that allows a productivity that is at least 20% greater than that achieved by standard-pitch cutters when undertaking contouring, profiling, plunging and face-milling applications; these tools have also been optimised for the smooth cutting of corners and pockets.

Meanwhile, Dormer Pramet has launched the double-sided WNHX04, an insert with six cutting edges and a patented wiper edge designed to generate a “superior finish on component walls and faces”, while reducing the time in cut.

This latest insert is compatible with a new range of copy milling tools; SWN04C cutters are available in diameters from 20 to 35mm and with a variety of differential-pitch options.

Designed for smooth cutting in operations with long overhangs, these cutters can be used for contouring, profiling, plunging and face-milling applications with depths of cut up to 2mm; and as with SCN05C cutters, the SWN04C range is suitable for semi-finishing and finishing applications in steels, hardened steels and cast irons for the mould and die sector.

In a recent example, the WNHX insert with WM geometry and the new M4310 grade was used to machine tool steel at a 0.50mm depth of cut, a cutting speed of 196m/min and a feed rate of 3,600mm/min — reducing machining time by 45% compared to a competitor’s ‘equivalent’ tool.

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