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

Fan casing  

The machinability of titanium is low, however, unlike the nickel alloys, ceramic cannot be applied. This puts challenges on productively removing material. Keeping the cutting temperature low is the key to success. The key factors together, with optimized programming, are choice of insert shape and utilisation of high-pressure coolant (HPC).

Tooling solutions for aerospace fan casings

CoroTurn® SL70 – the flexible modular tooling system

Round inserts offer best accessibility and productivity due to reduced entry angle and chip thickness. The programme consists of round carbide inserts as well as the stable CoroCut grooving system and comes with HPC as standard.

  • Radial and axial clearance requirements covered in compact program
  • Oval coupling offers excellent stability and accessibility
  • Coromant Capto size C6 for multi-task and VTL requirements

Read more about CoroTurn® SL70

CoroTurn® SL70  

CoroTurn® HP - Advanced cooling technology

The CoroTurn® HP programme consists of a full range of tool holders with advanced cooling technology. The fixed nozzles in the tool holder promise improved chip control, process security and high productivity, due to jets perfectly directed at the cutting zone. In combination with dedicated insert geometries for high pressure coolant, the performance in terms of tool life can be increased.

VTLs by design need to have either manual quick change or automatic tool change. With the coolant piped through the ram directly to the spindle there are no coolant pressure restrictions - as is the case with turret lathes and rotating spindles.

Coromant Capto Jetbreak, developed for UHPC applications in VTLs, has been applied for many years, predominantly in titanium casing, disc and spool applications. Much of the design and application knowledge developed in this field lay behind the now standard CoroTurn HP program for HPC.

Read more about CoroTurn® HP

CoroMill® Plura HFS  

Xcel in titanium

A radical tooling solution for semi-rough turning into shoulders. Xcel combines the advantages from square 45 degree lead approach angle and rhomboid 90 degree lead angle tools.

  • Rhomboid - accessibility into confined spaces and machine in two directions with easy tool offset
  • Square – high feed rate and long tool life
  • Xcel reduces the lead angle and chip thickness allowing an increase in feed and speed
  • Double the metal removal rate and at the same time double the tool life!

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CoroMill® Plura HFS - solid carbide end mill for high feed side milling

Utilize the new CoroMill® Plura HFS families for reliable and productive milling. The optimized grade for nickel based alloys have sharp, controlled cutting edges, providing long and predictable tool life along with high metal removal rate.

Read more about CoroMill® Plura HFS

CoroMill® Plura HFS  

CoroMill® Plura - 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 is a range of high quality solid carbide end mills that offer productive, efficient, and perfectly reliable milling solutions.

More detail about CoroMill® Plura

CoroMill® Plura  


CoroMill® Plura thread mills and CoroTap® - For reliable threading and tapping

The new threading and tapping solutions for nickel base alloys provide excellent process security on high value components.

More detail about CoroMill® Plura thread mills

CoroTap® - A complete tapping programme

CoroMill® Plura thread mills  


CoroMill® 300 - Light cutting face and profile milling cutters

Helical ramping of larger diameter holes with CoroMill® 300 provides the most secure and productive method here. The cutting forces are much lower than drilling, which also struggles with the interrupted exit into the bore.

For rough milling around a boss, use CoroMill® 300 with a roll in programme combined with round inserts to reduce notch wear and allow high feed rates.

Learn more about CoroMill® 300

CoroMill® 300  


CoroDrill® 860 with -SM geometry for optimized drilling in titanium

When drilling tough materials such as titanium, many things 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  


CoroTurn® XS Internal machining of small high quality features

CoroTurn® XS is a system for solid carbide tools designed for exact cutting edge position, enabling high precision and repeatability in turning machining.

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

Learn more about CoroTurn® XS

CoroTurn XS  


Grade GC1105 – designed for the challenge of super alloy machining

GC1105 provides secure, reliable, quality machining, even flank wear and is truly versatile in all application areas.

  • Reliability in intermediate stage machining through superior notch wear resistance in combination with good edge line toughness.
  • Guaranteed accurate high quality performance in last stage machining provided by our razor sharp, ground inserts and our state of the art thin coating, with excellent adhesion.

Explore more about Grade GC1105

Grade GC1105  


CoroCut® angled inserts

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

CoroCut® angled inserts PDF brochure for download

CoroCut® angled inserts  


Ceramic turning

Ceramic grades CC6220 and CC6230 are designed specifically for the challenges of new HRSA materials where whisker ceramics and SiAlONs fall short, capable of higher cutting speeds, contributing to reduced cost per component. For high metal removal rates in pocketing and profiling applications, choose grade CC6160.

Ceramic grades CC6220 and CC6230

Ceramic grade CC6160

Ceramic turning  

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