Commissariat a L'energie Atomique

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Philippe Aubert

Guillaume De Dinechin

Emmanuel Rigal

Philippe Bucci

Ludovic Goby

François Chaventon

A laser cutting/welding installation including a laser head configured to deliver a laser beam and a cooling device for cooling the laser head is disclosed. The laser beam is designed to generate a hot spot on a workpiece by incidence thereon and form a solder bath from a portion of the workpiece affected by the hot spot. The cooling device includes a vortex tube with a compressed gas inlet supplied with a compressed gas, a cold gas outlet, and a hot gas outlet. The vortex tube cold gas outlet is plumbed directly to an interior volume of the laser head and configured to deliver a cold gas directly to the interior volume of the laser head for cooling thereof.

Method and installation for laser cutting/welding

A method for making a component including fluid flow channels formed by making a plurality of grooves (), in at least one face () of a base plate (); having opposite ends so that the grooves have open top sides; scalably blocking the open top side of each groove and diffusion-welding a lid by hot isostatic compression onto the face () of the base plate () to cover each of the strips leaving open the fluid flow channels at one or both opposite ends of the base plate for allowing pressurized gas to penetrate into the flow channels.

Method for making a component including fluid flow channels

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Paris, France

Philippe Aubert