Surface densification of porous materials

Details Surface densification of porous materials Surface densification of porous materials

1991-11-05

1992-12-29

Jones, David

Metal deforming

By shot-blasting

148512, 29 901, B24C 100

Patent

active

051741431

ABSTRACT:
A method for producing a densified layer on the surface of a porous material having gas-containing voids which includes: (1) heating the outer surface of the porous material to cause localized removal of the gas contained in the voids so that the voids coalesce and form surface-connected channels, and (2) deforming the surface of the porous material to close the surface-connected channels so that a distinct, densified layer is formed at the surface of the porous material. The method is particularly applicable to the production of lightweight structural components.

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patent: 4956137 (1990-09-01), Dwivedi
Michael Woelfel and Robert Mulhall, "Glass Bead Impact Blasting", Sep. 1982, pp. 57-58.

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