Surface modification of powder metallurgy components with a direct diode laser
Barnes, Stuart, Nash, Michael J. and Kwok, Y. K.. (2003) Surface modification of powder metallurgy components with a direct diode laser. Journal of Engineering Materials and Technology, Volume 125 (Number 4). pp. 372-377. ISSN 0094-4289Full text not available from this repository.
Official URL: http://dx.doi.org/10.1115/1.1605111
A 1200 W diode laser was used to modify the surface properties of a fully-sintered ferrous PM material. Two modifications were investigated; transformation hardening of selected areas and sealing of surface porosity by re-melting. The diode laser was used because the beam footprint is large (5 x 0.5 mm) and the wavelength short (0.94 mum). Processed samples were examined using metallographic and hardness testing techniques. Results indicated that hardness comparable to induction hardening could be achieved and re-melting could be controlled to seal porosity. Further work now needs to be undertaken to convert this demonstrated potential into a commercial reality.
|Item Type:||Journal Article|
|Subjects:||T Technology > TJ Mechanical engineering and machinery
T Technology > TA Engineering (General). Civil engineering (General)
|Divisions:||Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)|
|Journal or Publication Title:||Journal of Engineering Materials and Technology|
|Number of Pages:||6|
|Page Range:||pp. 372-377|
|Access rights to Published version:||Restricted or Subscription Access|
|Version or Related Resource:||Barnes, S., Nash, M. J., Kwok, Y. K., “Surface Modification of Powder Metallurgy Components with a Direct Diode Laser”, Proc. of the ASME International Mechanical Engineering Congress and Exposition, Nov. 17-22, 2002, New Orleans, Louisiana, USA.|
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