Residual Stresses Induced by Laser FreeForm Fabrication

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In this paper we report our attempts to use the neutron and X-ray diffraction techniques to characterize residual stresses in specimens manufactured by laser FreeForm technique. The aim of our work has been to understand how residua stresses develop during forming and their possible correlation with the microstructure, in particular the pore density which varies with the laser scan speed. The specimens under investigation were built by layer-sintering a ferritic-steel powder with a Cu-based-alloy powder as the binder material. Limited results have been obtained for the ferrite steel phase and are presented in the paper.

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Periodical:

Materials Science Forum (Volumes 490-491)

Edited by:

Sabine Denis, Takao Hanabusa, Bob Baoping He, Eric Mittemeijer, JunMa Nan, Ismail Cevdet Noyan, Berthold Scholtes, Keisuke Tanaka, KeWei Xu

Pages:

334-339

Citation:

R. L. Peng et al., "Residual Stresses Induced by Laser FreeForm Fabrication", Materials Science Forum, Vols. 490-491, pp. 334-339, 2005

Online since:

July 2005

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$38.00

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