METHOD FOR MANUFACTURING A HEAT EXCHANGER FOR A TURBINE ENGINE

The invention relates to a method for manufacturing an annular heat exchanger (12), particularly intended to be mounted on the radially internal or external face of an annular shroud of a casing of a dual flow turbine engine, comprising the following steps: obtaining, by extrusion, a preform (32) of the heat exchanger (12) by means of a die that is shaped in such a way that the preform (32) comprises: - first ducts (11, 18) for circulating a fluid to be cooled; - second ducts (23, 24) arranged on either side of the first ducts (11, 18) in a direction perpendicular to the direction of extrusion; producing a perforation (34) in the preform (32) from the outside, said perforation (34) emerging in a given one (24) of the second ducts of the preform (32); introducing, inside said perforation (34) of the given second ducts (24), a component (30) for partially sealing its flow area. 本发明涉及一种用于制造环形热交换器(12)的方法，确切地说，所述环形热交换器既定安装在双流式涡轮机的机壳的环形壳层的径向内或外面上，所述方法包括以下步骤：通过借助于成形的模具挤压而获得热交换器(12)预成型件(32)，使得所述预成型件(32)包括：-用于待冷却流体的循环