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Solutions for cost effective and high-quality machining of aerospace impellor in titanium and HRSA

Solutions for cost effective and high-quality machining of aerospace impellor in titanium and HRSA

The impellor is found in the APU. The machining of the turbo foils is a similar process for both impellor and blisk.

Key factors to success are:

  • 5 axes machine with good simultaneous dynamics
  • Turbo 5 axes CAM software
  • Optimized tools and process knowledge for titanium/HRSA

Tooling solutions for aerospace impellor in titanium and HRSA

CoroMill® 316 - Plunge roughing of slot

Machining components with slots and pockets is always challenging. With the CoroMill® 316 Gannet plunger geometry available to order off the shelf, manufacturing of small, deep slots and pockets is both time- and cost efficient.

Roughing slot - titanium

The best method here is point milling. Because we are full slot milling the axial depth of cut is limited to half the diameter of the tool. The CoroMill® 316 ball nose exchangeable insert offers a great balance of productivity and economy.

Read more about CoroMill® 316

CoroMill® 316

Roughing slot – Inconel

Applying trochoidal milling with high speed machining techniques is the best method. Trochoidal milling – 2D roughing/high material removal method using HSM techniques in a confined space or slot – tool is programmed with a roll entry and exit from cut:

  • controlling the arc of engagement
  • low cutting forces allowing high depths of cut

CoroMill® Plura 50 degree relieved shank, ball nose design, is optimized for axial depth of cut twice the diameter and low radial cuts.

CoroMill® Plura solid carbide ball nose end mill for profiling

Roughing slot

Finishing the blade profile

Flank milling (high axial depth of cut) is the fastest option where the component, the CAM software and the tool allow.

The standard programme of conical ball nose end mills is specifically designed for this operation. They offer excellent stability combined with reach.

CoroMill® Plura solid carbide ball nose end mill for profiling

Finish the blade profile

Finishing the blade profile

When the component, tool and CAM software allow, flank milling (high axial depth of cut) is the fastest option to use.

The stand¬ard programme of conical ball nose end mills is specifically de¬signed for this operation. They offer excellent stability combined with reach.

CoroMill® Plura solid carbide ball nose end mill for profiling

Drill with CoroDrill® 846

The latest development in solid carbide drill technology with geometry optimized for HRSA offers a high number of drilled holes with security and low axial cutting forces.

Secure drilling for thin walled components

Drill with CoroDrill® 846

Finish bore with CoroMill® Plura end mill

Circular interpolation is a fast and secure method, one tool can finish a wide range of hole diameters reducing tool inventory.

CoroMill® Plura conical end mill

Finish bore with CoroMill®  Plura end mill

Chamfer with Coromant Capto CoroTurn® XS

This tool replaces inflexible special tools and can even be used for all de-burring and not just holes.

Learn more about CoroTurn® XS

Chamfer with Coromant Capto CoroTurn® XS

CoroChuck™ 930

Thanks to its excellent clamping performance this chuck offers the best pull-out security on the market, for excellent stability and accessibility in milling and drilling operations. A solution that doesn’t just helps increase machining safety and precision, but also increases production efficiency through quick and easy tool set-ups and changes. For 100% pull-out prevention, a collet with mechanical locking interface is available for Weldon shanks.

Read more about CoroChuck™ 930

CoroChuck™ 930

 
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