Snecma

Sophie Martine Jobez

Jean-Baptiste Mottin

Olivier Chantoiseau

Beryl Cassandre Anne Mereaux

Hervé Launais

Bruno Le Razer

Bruno Debeze

Beryl Cassandre Mereaux

A method of fabricating a metal part by selectively melting a powder, the method including: building up layer by layer on a plate and simultaneously with the part, at least one holder and support element for the part, the element being spaced apart and distinct from the part and being separated therefrom by a gap filled with non-melted powder; after the part has been made completely, removing at least some of the powder remaining in the gap between the part and the element, for example by suction, blowing, or vibration; and separating the part from the plate.

Process for manufacturing a metal part by selectively melting a powder

A method for laser welding at least two metal parts, wherein the parts are welded along a weld area, includes simultaneously applying a continuous laser beam and a pulsed laser beam onto the weld area. The action of the pulsed laser is added to that of the continuous laser; with the continuous laser, it is possible to establish a stable molten bath in the weld area, the pulsed laser by its large peak energy, facilitating penetration of the energy and therefore of the molten bath, which allows deeper welding. A device for implementing the method is also disclosed.

Method and apparatus for laser welding using a CW laser beam combined with a pulsed laser beam

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Epinay sur Orge, France

Sophie Martine Jobez