News | June 10, 2025

Steel Specialists With Good Performance In Cast Iron

Walter introduces new, universal Tiger·tec Gold milling grade WPP35G

With the Tiger·tec Gold grade WPP35G, Walter is launching new indexable inserts specifically for rough milling steel and cast iron materials. Compared to other milling grades in this application area, the new grade significantly increases performance once again, particularly in terms of Tool life, process reliability and Wear resistance. Here, the WPP35G outperforms comparable grades in steel by an average of 35 % and in cast materials by around 15 %. At the heart of the Tiger·tec Gold Grade WPP35G is a multi-layer MT-TiCN structure with optimised elastic properties of the crystals. This achieves very high layer adhesion with high inventory. The highly textured Al(2) O3layer on top reduces adhesion (e.g. with ISO K) and serves as a wear-resistant heat shield. The final, gold-coloured TiN layer optimises wear detection.

In addition to the high "texturing" (i.e. crystals arranged in the same direction, as opposed to disordered crystals) and the multi-layer structure, the multi-stage post-treatment in particular contributes to the high Wear resistance of the CVD milling grade. It ensures smooth rake faces and improves Toughness. Its high process reliability makes the WPP35G the ideal solution for low-manpower production and mass production; it can be used for medium to good machining conditions, in Dry machining (especially for steel) or with Lubricant - and in all standard Walter milling cutters from the M4000 Walter BLAXX and Xtra·tec XT lines. Potential areas of application include general mechanical engineering, the automotive and Aviation industry, as well as the rail vehicle and energy industry.

Source: Walter