Pinkerton, A. J. and Li, L. (2003) Process characteristics and effects of gas- and water-atomized stainless steel powders in laser-based rapid tooling. Journal of laser applications, 15 (3). pp. 172-178. ISSN 1042-346X
Full text not available from this repository.Abstract
In rapid tooling using the direct laser deposition process and stainless steel materials, only powders prepared using the gas-atomization method have been used because of their presumed superior flow characteristics. In this article, the use of water-atomized powder is investigated by comparing the behavior of the two types of 316 L powders, deposited using a CO2 laser and coaxial head. Results show little difference in the pneumatic conveyance of the powders, but considerably greater absorption of laser energy by the water-atomized powder between the nozzle and material deposition point. Walls produced using the water-atomized powder exhibited a more textured microstructure and smoother sidewall surfaces, with less surface metallic oxides, but the deposition rate was considerably lower than when using gas-atomized powder. (C) 2003 Laser Institute of America.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Journal of laser applications |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Departments: | Faculty of Science and Technology > Engineering |
| ID Code: | 59540 |
| Deposited By: | ep_importer_pure |
| Deposited On: | 21 Nov 2012 09:16 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 21 Nov 2012 09:16 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/59540 |
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