Abrégé

The invention relates to a method for metal foaming, in particular for producing a metal foam body, wherein a mixture of recycling material (for example chips) of at least one metallic component and at least one foaming agent is foamed.

Classes IPC  ?

• B22F 3/11 - Fabrication de pièces ou d'objets poreux
• B22F 8/00 - Fabrication d'objets à partir de déchets ou de particules métalliques résiduaires

Abrégé

The invention relates to a method for production of composite bodies with at least one outer layer and a metal foam layer with production of at least one outer layer material powder layer from non-foaming powders, granulates or cuttings, powder rolling the outer layer material powder layer(s) to give (an) outer layer(s), production of a layer of a foamable powder mixture, essentially made up of metal or alloy powder, granules or cuttings and a gas-releasing blowing agent, rolling the foamable powder mixture layer to a foamable layer, arranging the layers one on the other and heating the layer arrangement with release of the blowing agent, foaming the foamable powder mixture and bonding the rolled outer layer(s).

Classes IPC  ?

• B22F 7/02 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage de couches successives