Laser stereolithography by multilayer cladding of metal powders

Rafal Jendrzejewski; Grazyna T. Rabczuk; R. Zaremba; Gerard Sliwinski

doi:10.1117/12.316613

14 July 1998 Laser stereolithography by multilayer cladding of metal powders

Rafal Jendrzejewski, Grazyna T. Rabczuk, R. Zaremba, Gerard Sliwinski

Proceedings Volume 3423, Second GR-I International Conference on New Laser Technologies and Applications; (1998) https://doi.org/10.1117/12.316613
Event: Second GR-I International Conference on New Laser Technologies and Applications, 1997, Olympia, Greece

Abstract

3D-structures obtained by means of laser cladding of the metal alloy powders: bronze B10 and stellite 6 and the process parameters are studied experimentally. The structures are made trace-on-trace by remelting of the metal powder injected into the focusing region of the 1.2 kW CO₂ laser beam. For the powder and sample feeding rates of 8-22 g/min and 0.4-1.2 m/min, respectively, and the applied beam intensities not exceeding 2 X 10⁵ W cm^-2 the process is stable and regular traces connected via fusion zones are produced for each material. The thickness of these zones does not exceed several per cent of the layer height. The process results in the efficient formation of multilayer structures. From their geometry the effect of energy coupling and interaction parameters are deduced. Moreover, the microanalysis by means of SEM- and optical photographs of samples produced under different experimental conditions confirms the expected mechanical properties, low porosity and highly homogenous structure of the multilayers. In addition to the known material stellite 6 the bronze B10 is originally proposed for a rapid prototyping.

Citation Download Citation

Rafal Jendrzejewski, Grazyna T. Rabczuk, R. Zaremba, and Gerard Sliwinski "Laser stereolithography by multilayer cladding of metal powders", Proc. SPIE 3423, Second GR-I International Conference on New Laser Technologies and Applications, (14 July 1998); https://doi.org/10.1117/12.316613

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