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Citation link: http://nbn-resolving.de/urn:nbn:de:gbv:46-00105199-11
00105199-1.pdf
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Dry strip drawing test on tool surfaces reinforced by hard particles


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Authors: Freiße, Hannes  
Supervisor: Vollertsen, Frank  
Other Authors: Langebeck, A.
Köhler, H.
Seefeld, T.
Abstract: 
Deep drawing high alloy steels often causes wear issues. It is assumed that in a deep drawing process without lubrica-tion this effect will be increased. To realize Dry Metal Forming, new tool surfaces are necessary to avoid wear. An approach is to use laser generated metal matrix composite (MMC) materials for tool surfaces. The surface is reinforced by hard particles to increase the wear resistance of the deep drawing tool. In this work the results of strip drawing test with and without lubrication of different tool surfaces are presented. In the case of lubricated strip drawing test, the friction coefficient did not differ if the tool surface is reinforced with hard particles or not. However, in a dry strip draw-ing test the friction coefficient is increased in the case of the MMC tool and applying normal pressure higher than 2.5 MPa. On the other hand, a significant increase of the wear resistance of the reinforced surface was observed within a dry ball-on-plate test.
Keywords: coatings; metal matrix composite (MMC); laser melt injection; Dry Metal Forming
Issue Date: 2016
Journal/Edited collection: Dry Metal Forming Open Access Journal 
Band: Volume 2
Type: Artikel/Aufsatz
Secondary publication: no
URN: urn:nbn:de:gbv:46-00105199-11
Institution: Universität Bremen 
Faculty: FB4 Produktionstechnik 
Institute: BIAS - Bremer Institut für angewandte Strahltechnik GmbH 
Appears in Collections:Forschungsdokumente

  

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