Abstract: A manufacturing method for a plate comprising channels in which the method includes a step of superposing the two strips, a step of welding the two strips along the weld seams, a step of blocking the zones between the weld seams on one side of the strips, a pressurization step with a compressed fluid, where the zones between the weld seams open out along another side, to expand the strips, and a step of opening the zones blocked during the blocking step. This manufacturing method enables the titanium strips to be welded together and shaped by pressurization.

Abstract: A manufacturing method for a plate comprising channels in which the method includes a step of superposing the two strips, a step of welding the two strips along the weld seams, a step of blocking the zones between the weld seams on one side of the strips, a pressurization step with a compressed fluid, where the zones between the weld seams open out along another side, to expand the strips, and a step of opening the zones blocked during the blocking step. This manufacturing method enables the titanium strips to be welded together and shaped by pressurization.

Abstract: A drilling system is formed as a support structure to be mounted on a surface to be drilled, a beam supported by the support structure, a tool holder supported by the beam and having a locking orifice, and a drilling tool mounted on the tool holder by sliding connection in the direction parallel to the drilling axis. The drilling tool includes a bearing mandrel and an expandable ring closely fitting the bearing mandrel along a tapered contact surface for expanding the ring to ensure its locking in the locking orifice. Relative movement between the ring locked in the locking orifice and the bearing mandrel procures, by movement of the drilling tool relative to the tool holder via the slide connection, a movement of the bearing mandrel towards the surface to be drilled, through the locking orifice.

Abstract: The invention relates to a drilling system, in particular for two assemblies on which it is mounted. It makes it possible to drill holes through an overlap area, made using a drilling tool passing through a locking orifice formed on a tool holder of the drilling system, the drilling tool comprising a bearing mandrel as well as an expandable ring closely fitting the mandrel along a tapered contact surface and adapted so that a relative movement along a tapered contact surface. According to the invention, a relative movement is applied between the expandable ring and the mandrel so as to create, following locking of the ring in the locking orifice, a displacement of the mandrel bearing against the overlap area, through the locking orifice and towards said overlap area in order to exert pressure thereon, by displacement of said drilling tool relative to the tool holder via a sliding connection.