EG45: Tools for concave fillets and contours

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Burnishing

EG45 Single Roller Tools

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Tools for concave fillets and contours

ECOROLL single-roller tools are usually used for roller burnishing. They machine a wide range of complex contours and surfaces such as concave fillets and grooves as well as cylindrical and conical outer surfaces and bores. 

These tools comprise series EG, EF and FAK. EG tools are divided into tool families EG5, EG14, EG45 and EG90. They burnish cylindrical outer surfaces and bores, conical bores, plane surfaces and fillets. For deep rolling of fillets and thread root radii EF, FAK and FA tools are used. 

Single-roller 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. The roller head is attached to the flexible, spring-loaded section of the tool body. 

With these tools for example bores, con rods, housings, axles and flywheels are able to be machined.

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All tools

  • For use on CNC or conventional lathes with hydraulic contouring equipment
  • Machining in a chuck
  • Attainable surface finish Rz < 1 micron (Ra = 0.2 micron)

EG45-40M

  • Machining cylinders with subsequent radius to the plane surface
  • Suitable for low and medium strength materials
  • Extremely narrow roller

 

EG45-45T

  • Machining of cylinders or plane surfaces with subsequent transitional radii of up to 75°
  • High roller pressure, suitable for high-strength materials
  • Equipped with cantilever roller arrangement

 

EG45-45F

  • Tool with cantilever-mounted shaped roller of special design for machining convex and concave shapes by plunge or motion technique
  • Equipped with cantilever roller arrangement
  • Elimination of microscopic grooves and simultaneous introduction of residual compressive stress
  • Short primary processing time
  • Elimination of set-up times and downtimes
  • No occurrence of dust and slurry
  • Only nominal lubrication required (oil or emulsion)
  • Roller head guidance without play and low-friction
  • Stepless adjustment of roller pressure
  • Consistent and controlled machining results through measurement of roller pressure
  • Simple replacement of wear parts
  • Type EG45 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 dial indicator that indirectly measures the burnishing force.
  • The roller head is attached to the flexible, spring-loaded section of the tool body.
  • EG45-45T and -45F are equipped with floating rollers.
  • EG45-40M comes with a smaller roller. Because of its structure, EG45-40M has a lower load capacity.

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