Laser hardfacing

Hans W. Bergmann; Roland Kupfer; Dieter Mueller

doi:10.1117/12.20560

1 October 1990 Laser hardfacing

Hans W. Bergmann, Roland Kupfer, Dieter Mueller

Proceedings Volume 1276, CO2 Lasers and Applications II; (1990) https://doi.org/10.1117/12.20560
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

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.

Citation Download Citation

Hans W. Bergmann, Roland Kupfer, and Dieter Mueller "Laser hardfacing", Proc. SPIE 1276, CO2 Lasers and Applications II, (1 October 1990); https://doi.org/10.1117/12.20560

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