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  4. EG5-08F, EG5-40M: Contours, concave fillets, groove bed machining and short bores

EG5-1-25, EG5-08F, EG5-40M: Contours, concave fillets, groove bed machining and short bores

Characteristics

  • Can be used on CNC or conventional lathes.
  • Machining in a chuck.
  • Attainable surface finish Rz < 1 micron (Ra = 0.2 micron).
  • Processing of all metallic materials with a tensile strength of 1400 N/mm2 and a maximum hardness of HRC = 45.
  • Universally useable modular system.
  • Can be used as right or left-handed tool.
  • Both directions of rotation possible.
ECOROLL AG Single-roller Burnishing Tool EG5-40M with Digital Dial Gauge ECOsense
Single-roller Burnishing Tool EG5-40M with Digital Dial Gauge ECOsense

Advantages

  • Short cycle time.
  • Eliminates set-up and auxiliary processing time.
  • No dust or grinding residue.
  • Minimal lubrication required (oil or emulsion).
  • Accurately measured burnishing force ensures.
  • Consistent, high quality results.
  • Unrestricted roller face makes roller burnishing of shoulders and other edges possible.
  • Easy to change wear parts.
ECOROLL AG Burnishing O-ring groove with Tool type EG5-1-25
Burnishing O-ring groove with Tool type EG5-1-25

Basic construction

  • Type EG5 single roller burnishing tools consist of a tool body equipped with a tool shank, a spring assembly that allows the roller head to move with no play and very low friction, and a gauge that indicates the burnishing force as measured by spring deflection.
  • An optional device transmits the values by cable or wireless signal to an external indicator.
  • The roller head is attached to the flexible, spring-loaded section of the tool body. It consists of a cage, which contains and guides the burnishing roller, and a support roller with a large-scale needle bearing.
  • The cage also contains two spare rollers.
  • Tool design includes fixed roller clearance angle α.

EG5-08F

Roller burnishes groove flanks on the face or circumference and bores.

  • With diameters of 8.5 mm and larger
  • Max. rolling depth: 20 mm for diameters of 8.5 mm and larger 
  • Tool body’s spring assembly positioned parallel to workpiece surface.
  • Floating roller head attached to the tool body’s flexible, spring-loaded section.
 

EG5-40M

  • Machining cylinders with subsequent radius to the plane surface.
  • Suitable for low and medium strength materials.
  • Extremely narrow roller.
  • Tool body’s spring assembly positioned parallel to workpiece surface.
  • Roller head attached to the tool body’s flexible, spring-loaded section.
  • Extremely narrow roller with an integrated four-point bearing.

EG5-40M-45°: Roller burnishes cylindrical surfaces with connecting fillet radii up to the workpiece face.

  • Tool body’s spring assembly positioned at a 45° angle to workpiece surface.