Electrochemical precision erosion of rotating workpieces

Objective

  • Anodic metal dissolution in NaNO3
  • Final shaping of complex geometries using simple profile electrodes
  • Processing difficult-to-machine materials without process forces
  • Processing without temperature influence, without burr formation, without tool wear

Approach

  • Rotation device with vRmax = 200 rpm
  • Power transmission Imax = 1500 A
  • Tool geometry up to ø 20 mm x 200 mm
  • Plate electrode with a length of 100 mm and a thickness of 2 mm
  • Cylindrical turning: Coaxial cylinder surface, adjustable fits, high surface quality up to Ra = 0.02 µm
  • Profile turning: Complex geometries, high surface quality up to Ra = 0.05 µm

Development objectives

  • Processing and surface structuring of embossing and cylinder rollers
  • Production of external and internal toothing
  • Final processing of calander rollers

Benefits

  • Reduction of mechanical and thermal influence on surfaces
  • Substitution of processing stages
  • Production methods to produce specific roughness
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