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Herstellung titankarbidhaltiger Verschleißschichten durch Laserbestrahlung vorbeschichteter Stahloberflächen

: Juch, K.; Löschau, W.

Laser und Optoelektronik 26 (1994), No.5, pp.60-66
ISSN: 0722-9003
Journal Article
Fraunhofer IWS ()
hardness; Härte; laser alloying; laser surface treatment; laserlegieren; Laseroberflächenbearbeitung; screen printed layer; Siebdruckschicht; Verschleißresistenz; wear resistance

By means of the two-step coating process, wear resistant layersare produced on different steel substrates, consisting of a steelmatrix with embedded hard particles on TiC base.The coating process has been realized by the screen printing method and a following laser treatment mainly using the scanning technology.If fine grained powders are applied to the screen printing process, a very fine dispersed microstructure with a high TiC content up to 50 vol-% TiC can be produced.The thickness of layers is 0.2 - 0.5 mm.Because of the high hardness and wear resistance of these protecting layers an essential increase of the lifetime of tools orcomponent parts can be expected.