METHOD FOR MANUFACTURING MONOBLOCK BLADES BY CUTTING BY ABRASIVE WATER JET

摘要

1. A method of manufacturing a monoblock blade disc (1), including:! - the step of cutting out material from the block (100) with an abrasive water jet, carried out in such a way as to obtain blanks (102) of the blades extending in the radial direction from the disk (4); then! - the stage of milling the blanks (102) of the blades. ! 2. A method according to claim 1, wherein at the step of cutting material from the block (100), at least 50 wt% of said block (100) is removed by an abrasive water jet. ! 3. A method according to claim 1, wherein said step of milling the blade blanks (102) is carried out so as to obtain profiling of the blade blank (202), this step is followed by a finishing step by milling the blade blanks (202) to obtain the blades (2) final profile. ! 4. A method according to claim 1, wherein the diameter of said monoblock blade disk is equal to or greater than 800 mm. ! 5. A method according to claim 1, wherein the thickness (e) of the disc (4) of said monoblock blade disc is greater than or equal to 100 mm. ! 6. A method according to claim 1, wherein the blades (2) of the monoblock blade disk are twisted. ! 7. The method according to claim 1, wherein said block (100) of material is made of titanium or its alloys. ! 8. The method of claim 1, wherein said monoblock blade is a monoblock blade for an aircraft gas turbine engine. !nine. The method of claim 1, wherein said monoblock blade is a monoblock blade of a turbine or compressor rotor of an aircraft gas turbine engine.