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