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Walter USA offers a series of insert geometries designed to improve productivity in difficult turning applications. The Walter NMS and NRS geometries are well-suited for high-temperature alloys such as Inconel 718 and Waspaloy used in aerospace applications. The NMS geometry is designed for semi-finishing and medium machining in these alloys, but can also be used on ISO M materials including 304/316 austenitic stainless steels. The NRS geometry is suitable for roughing high-temperature alloys as well as the machining of forged and cast surfaces. The inserts’ WSM10 or WSM20 coatings and cutting edge geometry resist formation of notches and cutting edge build-up while decreasing heat generation for extended tool life.
The company also offers the NFT geometry featuring a fully ground periphery for high accuracy in finishing titanium alloys; the NRR geometry providing cut depths ranging to 0.700" (18 mm) for heavy roughing of forged materials; and the RP5 geometry featuring a stable, positive 3-degree chamfer for roughing with low power requirements.
Editor PickCan Additive Manufacturing Increase Milling Feed Rates?
With PCD tooling, yes it can. The diamond cutting edges demand a large number flutes to realize their full effectiveness. Traditional methods for making cutter bodies limit the number of flutes, but 3D printing is delivering tools with higher flute density and other enhancements as well.