With aerospace components manufactured from nickel-based alloys becoming increasingly prevalent, the demand for optimized cutting tools is growing. With this in mind, Sandvik Coromant has developed two innovative solutions ideal for shoulder and face milling of nickel alloy aero-engine parts.
“The ceramic substrate of the latest CoroMill 316 allows for a different cutting process than traditional solid carbide tools,” explains Tiziana Pro, global offer manager solid end mills at Sandvik Coromant. “Our unique S1KU grade is purpose-designed for the superior machining of nickel alloys and is supported by a negative geometry that provides a tough cutting edge.
“In fact, the six-flute geometry delivers highly productive side milling operations, while the four-flute geometry boosts face milling. CoroMill 316 is a perfect tool for difficult-to-reach applications or if you are looking for extra flexibility courtesy of the exchangeable-head system.”
Ceramic tools retain their hardness at the high temperatures associated with milling heat-resistant super alloys (HRSAs). As a result, 20 to 30 times the speed can be achieved compared to solid carbide tools, delivering considerable potential for increased productivity.
With the new bigger head diameter available from D16–25mm, it will be possible to reach these high cutting speeds with conventional machining centres (n=10000–18000 rpm.)
Beyond shoulder and face milling, the new end mills can also be used for pocket milling, helical interpolation, ramping and slot milling. CoroMill 316 is part of the Sandvik Coromant Optimised Solutions offer within the company’s solid round tools range.
