"FORM+Werkzeug" Newsletter


bkl-lasertechnik in the latest newsletter with the user-report of the week: "High-gloss surfaces with the foaming technology". 11/2016

fairs and events:

Event:         ExpertDay "MuCell mit innovativer 3D Wechseltemperierung", 5. September 2017, Trexel GmbH, Wiehl /...

Fakuma 2017- International trade fair for plastics processing


Visit us at the Fakuma 2017 in Friedrichshafen! Hall: B2, Stand no.: B2 - 2112 17 to 21 October 2017, Friedrichshafen / Germany

grain catalogue


Please choose from a variety of our grain assortment! bkl-lasertechnik developes own grain structures for applications for the automotive industry,...

Sponsor of the CAT-Racing-Team Coburg


bkl-lasertechnik supports the team  of the Coburg University of applied sciences and arts with e-manufactured metallic components for the...

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Micro peening

The method

Micro peening in the plastics manufacturing

Micro peening of mold inserts for plastics manufacturing means, that furrows, grooves or the so called “white zone” of the tools` interior surface will be compressed in the range of µm and the “white zone” will be skimmed. The removal rate of the sink erosion, determines the thickness of the “white zone”, ranging from 0 to 0,1mm. This should be considered when eroding.

The complete removal of the “white zone” and the surface compression leads to an improved surface roughness. By using exactly defined particle sizes at the micro peening process, the surface roughness will be less than 0,6 µm.


Micro peening of copper electrodes offers the following benefits:

  • Smoothing with shorter duration
  • Treatment of the insert surface with micro peening only (no manual work)
  • Reduction of the polishing operation time by approximately 50%


By using specific granulations it is possible to apply an additional non-stick coating. This creates an especially smooth (low-friction) surface which opens up significant advantages in the manufacturing process:

  • Enhanced material flow
  • Enhanced end forming
  • Use of release agents often not necessary.