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Solutions for cost effective and high-quality machining of aerospace fan discs

Aerospace fan discs  

Made from titanium, this component has internal chambers to be bored and large tulip grooves to be milled.

Tooling solutions for aerospace fan disc

The modular SL70 tooling system with dampened blades

To machine the deep internal chambers typically up to 150mm, long, slender tools are required. The challenges are tendency to vibration and removal of the chips from the groove. Turning one of the most challenging features into a secure process is achieved by:

  • The most productive and secure method for roughing is with direct grooving. To remove the chips from the chamber without jamming the WCMX GM insert splits the chip into three separate segments
  • Blades longer than 4x width of the blade are designed with a patented dampening device. This allows depth of cut to be 4 times greater than without dampening.
  • Oval serration blade system for best stability and accessibility. The 100mm high blade allows for best coolant delivery to assist in chip removal
  • Once the bulk of material has been removed the round carbide insert together with HPC profile turns to finished shape with dedicated geometry SM

CoroTurn® SL

CoroCut® 1-2

CoroTurn® HP

Dampened blades  

High pressure coolant

Fan disc  

CoroCut® angled inserts

Designed specifically for reaching difficult to access grooves and pockets in complex components.

Perfectly formed for those difficult to access grooves, 90 degree angled inserts come in a variety of shapes all as standard. No need for special tools. Blanks even available for dedicated 90, 45 degree and T-profiles.

CoroCut® angled inserts for aerospace access

CoroCut® angled inserts  

Tulip slot milling

This feature has traditionally been broached but with new technology this has been replaced with milling. Due to the special form of the groove, engineered solutions have been developed.

Use an engineered tulip slot roughing cutter for full slot or trochoidal machining. With this unique tool, a complete profile can be achieved with the same tool. The cutter is equipped with Ilock™ tip seats for high stability and easy handling.

Tulip slot milling  

CoroDrill® 860 with -SM geometry

When drilling tough materials such as titanium, many factors need to be taken into account. Process security, repeatability, hole tolerance and quality are critical. Equipped with a robust design, a high-quality edge and a wear-resistant top coating, the CoroDrill® 860 with -SM geometry delivers on these key considerations.

Learn more about the CoroDrill® 860

CoroDrill® 860  

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