Minimizing friction

Through surface functionalization

Production of tribologically effective microstructures in surfaces

Functionalization of ceramic slip rings

Microstructures for hydrodynamic pressure build-up in plain bearings

functionlization of slip rings

Reduction of friction and wear in ceramic slide rings

In the context of the further increase in environmental regulations, particularly in the automotive sector, there is an increasing need for further optimization of tribological systems. This also includes ceramic slide rings that are used, for example, in pumps in bearings and seals.

The tribological properties can be adjusted in a targeted manner by functionalizing the metallic or ceramic surface with microstructures. USP processing allows the materials to be processed with high structural resolution and without damaging the surface.

Functionalization

  • Introduction of hydrodynamic wedge gaps with angles of less than 0.1 °
  • Introduction of cell structures for hydrodynamic pressure build-up without bulges and without damaging edge areas
  • Processing of all common ceramics: silicon nitride (Si3N4), silicon carbide (SiC), oxide ceramics
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Laser machined ceramic slip rings

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Combination of conveying structure and cell structure in one plain bearing

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Hydrodynamically effective structures

Cell structures for targeted influencing of the Stribeck curve in tribosystems

Objective: Reduction of frictionand wearin two-dimensional friction contacts by reducing static friction and shifting the mixed friction range to lower sliding speeds.
Functionalisation: Introduction of cell structures that cause a hydrodynamic pressure build-up and thus an increase in the lubrication gap. In combination with transport structures, the sealing effect can be maintained.

Advantages of USP machining

  • High structure resolution: structure depths from 1µm depth as well as 3D topographies can be realised
  • Post-processing freedom: laser processing without burr
  • Great freedom of design in terms of structural geometry
  • Freedom of materials: machining of sliding surfaces made of metals, hard metals and ceramics
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Laser machined ceramic slip rings

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Combination of conveying structure and cell structure in one plain bearing

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PULSAR PHOTONICS COVERS THE COMPLETE PROCESS CHAIN

application development - from feasibility study to full scale production

Your personal contact

M.Sc. Philip Oster
Head of contract manufacturing

+49 (0) 2407 / 55 555 – 24
applications@pulsar-photonics.de
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