ICTM Collaborative R&D 2020

Benchmark of Grinding/Polishing Technologies to Finish Blades

© Fraunhofer IPT

Which technical and econimical potentials offer the addressed grinding/polishing processes?


Challenge and Motivation

  • Blades and Blisks demand high quality standards in shape accuracy and surface quality. The complex geometries demand a high effort milling process.
  • Finishing of Blades and Blisks is done today with e.g. PECM, vibratory grinding or manual processes.
  • Robot-based and CNC-machine integrated finishing technologies could decrease the manufacturing time by keeping the same quality standards.


  • Evaluation of technical and evonomical performance of the grinding/polishing technologies for single Blades (incl. potential/issues regarding Blisk finishing).