During the hot-forming process, titanium and its alloys develop an oxygen-contaminated surface recast layer or ‘alpha case’ which is hard and brittle, and can create a series of microcracks which will reduce the metal’s performance and its fatigue properties. This Alpha case layer must therefore be completely removed, firstly by cleaning and then acid-etching (nitric:hydrofluoric).
To ensure that Thermal Engineering remains at the forefront of this highly specialised process, we have invested in a brand new, fully automated chemical processing line which will be installed and commissioned during Q3 2021:-
Titanium Recast Layer/Alpha Case Removal
- Fully automated chemical processing line for etching post forming
- Ultrasonic cleaning
- Alpha case removal
- Improved process repeatability
- Multiple batch processing
- Improved Safety features
Chemical Processing: Click the images above to view larger images and browse the gallery.