Abstract: A turbomachine sealing ring has an axis of revolution and includes an annular support, an annular coating made of abradable material which is carried by the support, and an annular thermal protection plate which is carried by the support. The ring is divided into sectors and has a plurality of ring sectors disposed circumferentially next to one another about the axis. Each ring sector has a support sector, a coating sector, and a plate sector. Each plate sector ling includes a flat tab that is pressed against a face of the corresponding support sector and is fixed to this face by brazing. The tab is inserted into a through-slot in the support sector in order to improve its integrity in operation.

Abstract: A turbomachine sealing ring has an axis of revolution and includes an annular support , an annular coating made of abradable material which is carried by the support, and an annular thermal protection plate which is carried by the support. The ring is divided into sectors and has a plurality of ring sectors disposed circumferentially next to one another about the axis. Each ring sector having has a support sector, a coating sector, and a plate sector. Each plate sector having includes a flat tab that is pressed against a face of the corresponding support sector and is fixed to this face by brazing. The tab is inserted into a through-slot in the support sector in order to improve its integrity in operation.

Abstract: Turbomachine member ring supports extending over sectors of a circle can be constructed from at least one thick flat metal sheet that is curved and welded to form a cylindrical shroud and then formed by pressing into a conical shroud, the outer face of which is machined in order to shape the profile of a mounting rail therein, and the shroud is sectioned in order to divide it into the sectors. The supports have better cohesion and the manufacture thereof is simple and reliable compared with traditional manufacture using bossing of thin metal sheets for joining together the main portions of the supports. The application also relates to a use with stator rings of a turbomachine member that are provided with an abradable lining.

Abstract: The invention relates to a method for manufacturing a cellular structure comprising the following steps: a) providing a plurality of metal sheets (126) each having, in a first direction, undulations formed by a succession of vertex areas (28) alternately arranged with junction areas (30); b) juxtaposing the sheets (126) so as to form cells; c) placing a first (26a) end of each sheet (126) in contact with a support plate; d) arranging a soldering element between the support plate (34) and the first ends (26a) of the sheets (126) and heating the assembly in a furnace. According to the invention, the method consists, prior to step d), in adding a means for blocking the diffusion of solder from said first ends (26a) of the sheets (126) to the second free ends (26b) of the sheets (126).

Abstract: Turbomachine member ring supports extending over sectors of a circle can be constructed from at least one thick flat metal sheet that is curved and welded to form a cylindrical shroud and then formed by pressing into a conical shroud, the outer face of which is machined in order to shape the profile of a mounting rail therein, and the shroud is sectioned in order to divide it into the sectors. The supports have better cohesion and the manufacture thereof is simple and reliable compared with traditional manufacture using bossing of thin metal sheets for joining together the main portions of the supports. The application also relates to a use with stator rings of a turbomachine member that are provided with an abradable lining.

Abstract: An electrical discharge machining tool of a ring sector for an aircraft turbomachine is provided. The ring sector includes an abradable member and a support element to which the abradable member is fixed; and one or more gripping holes opening on a radially outer surface of a central body of the support element. The machining tool includes at least two machining sets chosen from groove, notch, opening, length-cutting, or abradable element electro-machining sets. The machining tool also has a gripping device for the ring sector by the gripping holes. The gripping device is configured to move the ring sector from one of the electro-machining sets to another of the electro-machining sets.

Abstract: The invention relates to an electrical discharge machining tool of a ring sector for an aircraft turbomachine. The ring sector comprises an abradable member and a support element to which the abradable member is fixed. The ring sector comprises one or more gripping holes opening on a radially outer surface of a central body of the support element. The machining tool comprises at least two machining sets chosen from groove, notch, opening, length-cutting, or abradable element electro-machining sets. The machining tool also has a gripping device for the ring sector by means of the gripping holes. The gripping device is configured to move the ring sector from one of the electro-machining sets to another of the electro-machining sets.