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Proceedings Paper

Laser hardfacing
Author(s): Hans W. Bergmann; Roland Kupfer; Dieter Mueller
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Paper Abstract

For many applications it is necessary to generate wear resistant, hard surface layers. These layers should consist of hard particles embedded in a ductile matrix. These hard particles are choosen appropriate to the wear conditions and wear partners like minerals, carbides in an iron base material or coked particles in motor oils. For protective layers it is important to use low cost hard phase materials, however, some tools require diamonds, the hardest material known. These have then to be fixed onto the surface. One way of generating such layers is the application of surface treatments with CO2-lasers. The selection of the hard particles as well as the process control is furthermore dependent on the boundary conditions like chemical resistivity, desired layer thickness, maximum lagging and price. The generation and deposition of hard phases is possible by a dispersion of additives into the melt, by forming a hard phase in the pool or by their precipitation, respectively. In the present paper examples are outlined and some of the current problems are discussed.

Paper Details

Date Published: 1 October 1990
PDF: 16 pages
Proc. SPIE 1276, CO2 Lasers and Applications II, (1 October 1990); doi: 10.1117/12.20560
Show Author Affiliations
Hans W. Bergmann, Univ. Erlangen-Nuernberg (Germany)
Roland Kupfer, Univ. Erlangen-Nuernberg (Germany)
Dieter Mueller, Univ. Erlangen-Nuernberg (Germany)

Published in SPIE Proceedings Vol. 1276:
CO2 Lasers and Applications II
Hans Opower, Editor(s)

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