Walter to reveal new machines at GrindTec 2020

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Walter will be launching two machines at the forthcoming GrindTec exhibition (18-21 March 2020, Augsburg, Germany), and while full details of the latest duo will not be released until the exhibition doors open, it can be revealed that one of the arrivals will be the twin-spindle option for the Helitronic Power 400 tool grinder and Helitronic Power Diamond 400 ‘two-in-one’ tool eroding and grinding machine. The twin-spindle option machines offer 24 kW and are able to accommodate tools up to 520 mm long and 380 mm diameter.

In addition to releasing a number of other tool production and measurement innovations as part of the United Grinding Group display (Stand 2055, Hall 2), Walter will also show the Helicheck Plus tool measuring machine with integrated robot laser marking (after cleaning), while Ewag will have the Laser Line Ultra, Compact Line and Profile Line insert production machines on show.

The Ewag Laser Line Ultra represents ultra-short pulse laser machining of all cutting materials, and accommodates inserts up to 200 mm diameter and 250 mm long. Also on the stand will be the Profile Line, which is targeted at the production of complex insert geometries, including interchangeable cutting inserts and rotationally symmetrical drilling and milling inserts of HSS, carbide, cermet and ceramic.

Finally from Ewag, the 6-axis Compact Line is designed for grinding (including peripheral grinding) inserts of tungsten carbide, cermet, ceramic, PCBN and PCD. The machine’s traverses in the X, Y and Z axes are 450, 180 and 150 mm, respectively, while axis resolution is 0.0001 mm. The 5.5 kW grinding spindle produces 7,000 rpm.

A ‘three-in-one’ dressing unit ensures grinding wheel concentricity and high process reproducibility, plus it offers wheel dressing, regeneration and ‘crushing’ in a single package. Machine usability and effectiveness is also guaranteed by the integrated ProGrind software, while the Fanuc control system enables all grinding routines to be programmed quickly and easily via its touchscreen panel.

Applying protective chamfers on the main cutting edges of inserts is facilitated by the machine’s optimised kinematics, as well as by the newly developed C axis. Machine downtime is minimised via the machine’s short travel distances and by the integrated 6-axis Fanuc robot that offers agile handling and a high degree of flexibility for loading complex inserts.