Indexable Ceramic Inserts suit super alloy turning operations.

Press Release Summary:

Used for turning applications involving Inconel, Waspaloy, Stellite, and other heat-resistant super alloys, silicon nitride-based WIS10 (Sialon ceramic) and WWS20 with silicon carbide whiskers (Whisker ceramic) are optimized for hardness, heat resistance, and wear resistance. WIS10 suits light roughing to semi-finishing operations, while fracture-resistant WWS20 delivers toughness for turning forged or cast out-of-round workpieces with uneven surfaces or heavy interruptions.

Original Press Release:

Walter Introduces WIS10 and WWS20, Ceramic Grades for Super Alloy Turning Operations

Walter’s tough new ceramic inserts bring greater speed, process reliability and cost effectiveness to high temperature alloy turning operations.

Waukesha, WI – Walter USA, LLC has introduced WIS10 and WWS20, two new ceramic grades that deliver superior results particularly when turning high-temp super alloys.

Turning Inconel, Waspaloy, Stellite and other heat resistant super alloys can be very tough on the carbide tools typically used to machine them. That’s because of the high cutting temperatures they generate, along with greater tool stresses and increased tool wear. Ceramic inserts have very high hardness, heat resistance and wear resistance, and can stand up more effectively to the demanding conditions encountered in machining super alloys. Walter’s two new complementary grades, silicon nitride-based WIS10 (Sialon ceramic) and WWS20 with silicon carbide whiskers (Whisker ceramic), stand up to these applications with increased tool life and process reliability. They are designed to deliver cutting speeds five to ten times higher than carbide in many super alloy roughing and semi-finishing operations.

With its self-reinforced structure of silicon nitride ceramic and enhanced chemical stability, WIS10 offers excellent notch wear resistance and excels at turning all types of heat resistant super alloys. The application area for WIS10 ranges from light roughing to semi-finishing operations. The new WWS20, for its part, delivers superior fracture resistance thanks to its silicon carbide “Whisker fibers” which add the toughness needed to handle interrupted cuts. This makes it ideal for turning forged or cast out-of-round workpieces with uneven surfaces or heavy interruptions, and for high feed rates used when removing large amounts of material.  In addition, WWS20 excels at turning hardened steel.

Walter supplies WIS10 and WWS20 indexable ceramic turning inserts in the negative basic shapes C, D, R and S, and positive basic shape inserts in RC and RP format; all are available with different cutting edge designs. For turning there are also toolholders available with carbide shoe and clamping system. This gives the user the best possible toolholder system for turning, capable of cutting speeds up to 1350 sfm.

Walter USA, LLC offers an extensive line up of cutting tools for milling, drilling, turning, boring and specialized tooling for unique applications through its competence brands Walter Valenite, Walter Titex and Walter Prototyp, as well as multi-level service programs through its Walter Multiply brand. Headquartered in Waukesha, Wisconsin the company has a strong network of distributors and field engineers across North America. The Walter name is synonymous with productivity, thanks to more than 80 years of developing cutting tools and inserts that set new standards in production. Walter USA, LLC combines over 75 years of U.S.-based tooling production with long-standing traditions of quality and innovation.

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