Requirements
In aircraft engines, turbine blades must resist high temperatures and a centrifugal force of up to 18 tonnes. Therefore, blades are firmly retained on discs thanks to fir-tree profiled grooves. These profiled grooves are machined in the turbine disc through a broaching operation. Broaching is a critical machining operation where in which each tooth of the broach progressively removes some metal, to produce the final groove shape.
Benefits
When cutting the new generations of difficult-to-machine superalloys and titanium alloys, ASP® material (PM HIP HSS) is an efficient solution to ensure a longer tool life and higher productivity of the broaching tools through less micro chipping.
Component Specification
The information contained in these case studies is provided by third parties and although EPMA does its best to ensure the case studies are accurate it is not liable for any mistakes or wrong information