Walter expands Gold range with new PVD-coated grade WKK25G insert
Walter is expanding its Tiger·tec Gold range with the new WKK25G milling grade, featuring PVD aluminum oxide (Al2O3) coating. The coating is part of a new coating generation that ensures cutting-edge stability and tool life, said the company.
The coating consists of gold-colored zirconium nitride (ZrN) top layer for the best friction characteristics and wear detection, an Al2O3 middle layer to resist high temperatures and a titanium aluminum nitride (TiAlN) layer on the carbide substrate for high wear resistance.
As all cast iron materials contain silicon carbide (SiC), which is very abrasive to the cutting edge.
The grade is suited for cast irons (ISO K material group), such as ductile cast iron, and for unfavorable milling conditions, such as interrupted cuts, and for wet machining applications.
The inserts are compatible with all standard Walter milling cutters and have an extremely smooth rake face to minimize friction.
Walter Tools | www.walter-tools.com
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