Technical Details: Baublies tool for deep rolling external threads

Burnishing tool for deep rolling of dynamically stressed external threads

Application external threads, deep rolling root of thread
Fixture VDI 50 / HSK / Capto etc.
Path indicator
housing

check path indicator (no force indication!) 
Default Setting 1 kN pre-load

Roller type

as required

 

Application parameters

Please note that this information represents standard values which must be adapted to the individual cases.

Speed up to 200 m/min
Feed rate according to pitch
Workpiece allowance  up to 0.02 mm
Tool preload up to 2 mm
Lubrication Emulsion or oil; filtration of the lubricant (< 40 µm)
can improve the surface quality and the tool life 
Pre-machining of workpiece Surface roughness (Rz) up to 15 µm
Workpiece hardneess up to 45HRC

 

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Burnishing tool for deep rolling of dynamically stressed external threads

In the case of cut threads, the course of the grain of the workpiece is interrupted. With rolled threads, on the other hand, the grain flow is not interrupted, thus the surface of the thread is hardened and the workpiece is less sensitive to notch effects. With the Baublies single roller tool for deep rolling of radii on threads, an increase in the dynamic strength properties can be achieved. The tool rolls the core radius of an external thread and thus hardens the surface. The result is higher wear resistance and reduced notch sensitivity.

 

Advantages

  • different roller geometries possible
  • easy replacement of the rollers
  • short processing times
  • no set-up and transport costs