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New barrel-geometry cutters improve finishing efficiency on blisks, blades, and impellers

GWS Tool Group today announced a new circle segment end mill program engineered to improve finishing efficiency for complex aerospace engine components. Applications include individual blades, impellers, and blisks, also called integrally bladed rotors (IBRs).

The circle segment end mills use barrel geometry to increase step-over capability during five-axis finishing. By covering more surface area with each pass, the tools can reduce the number of toolpaths needed to finish complex contours. As a result, manufacturers can shorten cycle times while maintaining part quality.

“Circle segment end mills give manufacturers a more efficient approach to finishing the complex curved surfaces found in aerospace engine components,” said William Durow, Vice President of Engineering and Technology at GWS Tool Group. “This program strengthens our aerospace offering with tooling engineered for the performance demands of nickel-based superalloys and titanium alloys.”

An optimized cutting-edge radius supports improved surface finish and tighter tolerances. This can reduce or eliminate secondary finishing operations. In addition, fine-tuned edge preparation balances cutting sharpness and edge strength for consistent performance in difficult-to-machine aerospace materials.

The program combines an advanced substrate and coating to improve tool life and wear resistance in high-temperature alloys. Reduced tool engagement and an optimized contact point also help lower cutting forces. This supports higher feeds and speeds while protecting part integrity.

Product specifications, availability, and ordering information will be available at gwstoolgroup.com and through GWS representatives.

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