Walter USA’s Ceramic Inserts Optimize High-Temp Alloy Machining

Walter USA’s ceramic inserts directed at machining high-temp alloys such as Inconel, Waspalloy and Stellite feature grades WIS10 and WWS20. Super alloys, because of the high cutting temperatures generated with greater tool stresses and increased tool wear, can be tough on carbide tools typically used to machine them.

New Product Announcements From: 2/5/2013 Production Machining
Originally titled 'Ceramic Inserts Optimize High-Temp Alloy Machining'

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Walter USA’s ceramic inserts directed at machining high-temp alloys such as Inconel, Waspalloy and Stellite feature grades WIS10 and WWS20.

 

Super alloys, because of the high cutting temperatures generated with greater tool stresses and increased tool wear, can be tough on carbide tools typically used to machine them. Ceramics, though, because of their extreme hardness, heat resistance and wear resistance, can stand up to these demanding applications.

 

Walter’s two complementary grades, silicon nitride-based WIS10 (Sialon ceramic) and WWS20 with Whisker silicon carbides (Whisker ceramic), do more than stand up to these applications with increased tool life and process reliability, according to the company. They also deliver cutting speeds 5 to 10 times higher than carbide in roughing and semi-finishing operations.

 

With its self-reinforced structure of silicon nitride ceramics and enhanced chemical stability, WIS10 offers excellent notch wear resistance and excels at machining all types of heat-resistant high temp alloys. WWS20 is designed with superior fracture and crack resistance thanks to its “Whisker fibers” and is ideal for nickel-based alloys and difficult conditions, such as machining forged out-of-round workpieces with uneven surfaces. It also excels at hard machining of steel. 

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