What is Roller Burnishing Tools?
Roller burnishing is a non-cutting method for smoothing and strain hardening metallic surfaces with forming elements.
- During roller burnishing, the forming elements are loaded with a vertically directed force to the surface (roller burnishing force). Thereby the roughness profile is plastically deformed and levelled.
Roller burnishing changes the stress condition in the surface layer of the material.
Roller burnishing is a method of micro finishing.
Multi-roller tools
The classic design of roller burnishing tools are the multi-roller tools. They are offered in a broad range of standard and special forms.
They are normally used to work cylindrical holes, shafts, tapers, and plane surfaces.
Fast and economical machining without cross force to the rotation axis.
Used on all established types of machines.
Single roller burnishing tools
- Only one roll is in operation.
Offered in different designs: Variable, Modular and Slim systems.
Used to process various diameters.
Spring loaded to compensate prework tolerances.
Can be fitted with standard or specially designed rollers according to process requirements.
Suitable for processing cylindrical parts and profiles like radii, tapers, or recesses.
Perfectly suitable for strain hardening.
Diamond burnishing tools
The burnishing process is not carried out by a rotating roller but by a spherical, fixed diamond. The diamond slides over the surface and forms a profile, comparable to a ball rolling over the surface.
This process of smoothening and strain hardening is like the process with conventional rolling tools.
The possibilities in design and the outstanding material characteristics of the diamond generate a significant extension for the applications of roller burnishing.
With the point-shaped contact area and the slim design of the diamond numerous contours can now be processed. For example, thin-walled parts can be smoothened with the diamond.
The enormous hardness of the diamond enables the machining of materials with a hardness of more than 60 HRC.
The design of the tools exclusively contains mechanical components; therefore, the tools can be used on almost every machine tool. There is no additional expensive equipment such as driven tools or hydraulic pumps required.
The slim design enables application of the tools in small, spaced machines such as swiss type lathe machines.
According to the requirements of the workpiece the shape of the diamond can be adapted from variable radii to cones and pyramided.
The combination of the diamond burnishing tool with cutting tools is possible.
COLIBRI: Perfect Finish For Sophisticated Workpieces
Diamond burnishing tool for external use, swiss lathe
Diamond burnishing tools from the Colibri series are always optimally suitable when the peak-to-valley height of filigree workpieces is to be minimized and at the same time the strength is to be increased.
Forming tools
Forming tools are a special feature in the Baublies product range. The design of the tools is related to roller burnishing tools.
The most important aim of the forming process is not the improvement of the surface roughness but the specific transformation of the workpiece geometry.
Forming tools are normally used on standard (CNC-) machine tools or on special machines which are integrated in assembly lines.
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