Tiger.tec Silver Inserts Increase Tool Life

Tooling company Walter claims that users of the Tiger.tec Silver inserts are realising tool life increases of 100 per cent. For example, machining a variety of workpieces at similar cutting data (feeds and speeds), the Walter Tiger.tec Silver insert achieved a 100 per cent increase in tool life when machining St52-2 guide tracks (using a Xtra.tec octagon cutter) and a 75 per cent increase in tool life on the face milling of GGG50 brake callipers using a Xtra.tec shoulder mill.

Tiger.tec Silver features a surface treatment that significantly reduces the in-cycle machining stresses of both wet and dry applications, thanks to its balanced combination of a high level of toughness and maximised hardness. The result is an insert that will compensate for any brittleness that may develop as a result of the CVD coating process. The CVD-Al2O3-grade coating counters any influence from thermal shock that can lead to thermal cracking at the cutting edge and minimise tribochemical wear on the flank face.

These are key areas that can lead to premature insert failure. The Tiger.tec Silver designation reflects the insert's two-tone finish of glossy silver on its flank face and black on the rake angle face. Not only is this colour combination distinctive, but it also provides a practical indication of wear. Within a year of its launch, Walter has expanded its range of indexable inserts to embrace all its milling tools for steel and cast-iron machining.

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