Multiple Processes In One Setup

The six-axis CNC ewamatic line is a new addition to the Ewag line of high-precision tool grinding centers designed for tough-to-grind tungsten carbide, PCD and polycrystalline boron nitride (PCBN) tools, indexable inserts and rotary tooling. In one machine, the ewamatic is said to combine multiple processes often required to address these difficult materials. Modular by design, the CNC can be tailored to grind complex tools, screws, inserts and other parts, many common to the medical and dental industries.

The six-axis CNC ewamatic line is a new addition to the Ewag line of high-precision tool grinding centers designed for tough-to-grind tungsten carbide, PCD and polycrystalline boron nitride (PCBN) tools, indexable inserts and rotary tooling. In one machine, the ewamatic is said to combine multiple processes often required to address these difficult materials.

Modular by design, the CNC can be tailored to grind complex tools, screws, inserts and other parts, many common to the medical and dental industries. Step reamers, drills and milling cutters, as well as circular and angular PCD or PCBN indexable inserts, can be ground to tight tolerances. The company says convex radii and tangents with equal or unequal clearance angles are also handled often.

The ewamatic contains a star-shaped turret grinding head, which features up to six independent grinding spindles (a maximum of 12 grinding wheels) to accommodate rotary applications from 0.1 mm to 35 mm in diameter. Multiple process operations are said to be accomplished in one clamping.

An automatic swiveling 3D measuring probe inspects the cutting edge of the tool to be ground and automatically transmits compensation data relative to the infeed rate. The measuring cycle repeats itself several times during grinding, depending on the workpiece, and follows the "measure-grind-measure" principle until the required tolerances are achieved, according to the company.