Abstract: A method of building up an aluminum alloy part by welding is disclosed. The method includes the steps of manually depositing a layer of aluminum alloy powder on the part in a build-up zone and welding the powder layer onto the part by laser welding. A mask having an opening of dimensions corresponding to the dimensions of the build-up zone is positioned on the part and the layer of powder is deposited on the part both in the build-up zone and overlaps onto the mask around the build-up zone. The height of the powder layer relative to the surface of the part is calibrated prior to the welding step.

Abstract: A device for feeding fuel to a combustion chamber in a turbomachine, the device comprising both an annular fuel feed rail extending around an outer casing of the combustion chamber, and a plurality of injectors fixed to the casing and opening out into the combustion chamber, the injectors being connected to the rail by fuel transport ducts and by support means that are deformable in bending, twisting, and pivoting, allowing the casing to expand thermally in a radial direction relative to the annular rail and providing rigid support for the annular rail.

Abstract: A method of building up an aluminum alloy part by welding, the method comprising the steps of: manually depositing a layer of aluminum alloy powder on the part in a build-up zone; and welding said powder layer onto said part by laser welding. Advantageously, a mask having an opening of dimensions corresponding to the dimensions of the build-up zone is positioned on the part and the layer of powder is deposited on the part both in the build-up zone and overlaps onto the mask around the build-up zone. Also advantageously, the height of the powder layer relative to the surface of the part is calibrated prior to the welding step.

Abstract: A device for feeding fuel to a combustion chamber in a turbomachine, the device comprising both an annular fuel feed rail extending around an outer casing of the combustion chamber, and a plurality of injectors fixed to the casing and opening out into the combustion chamber, the injectors being connected to the rail by fuel transport ducts and by support means that are deformable in bending, twisting, and pivoting, allowing the casing to expand thermally in a radial direction relative to the annular rail and providing rigid support for the annular rail.