Method for sizing stubs of a blade disc of a turbomachine intended for orbital welding
AssigneeSafran Aero Boosters SA
InventorJohann PANCRACE
Life of this patent
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Abstract
A method for sizing a junction section by orbital friction welding between a blade and a stub of a bladed disk for a turbomachine. The section is sized such that the ratio of an average ray length extending fully into the section from a point at the periphery of said section and sweeping across said section, where said average ray length is a maximum average length, and an average length of rays extending completely into the section from another point at the periphery of said section and sweeping through said section, where said average length is a minimum average length, is less than or equal to 2.
Claims14
-15. (canceled)
A method for sizing a section of a junction by orbital friction welding between a blade and a stub of a bladed disk for a turbomachine, wherein the section is sized so that a ratio between an average length of rays extending completely in the section from a point at a periphery of said section and sweeping said section, wherein said average ray length is a maximum average length, and an average ray length extending completely in the section from another point at the periphery of said section and sweeping said section, wherein said average length is a minimum average length, is less than or equal to 2.
A method for manufacturing a bladed turbomachine disk, comprising the following steps:
- provision of a disc with stubs;
- and
- joining of blades to the stubs by orbital friction welding, wherein the stubs of the disc are sized according to a method for sizing a section of a junction by orbital friction welding between the blade and the stub of a bladed disk for a turbomachine, wherein the section is sized so that a ratio between an average length of rays extending completely in the section from a point at the periphery of said section and sweeping said section, wherein said average ray length is a maximum average length, and an average ray length extending completely in the section from another point at the periphery of said section and sweeping said section, wherein said average length is a minimum average length, is less than or equal to 2.
A rotor disk for a manufacture of a bladed disk for a turbomachine, the rotor disk comprising an external surface provided with an annular row of stubs extending radially from said external surface, each of the stubs comprising a section to be welded by orbital friction with a blade, wherein said stubs are sized according to a method for sizing a section of a junction by orbital friction welding between a blade and a stub of a bladed disk for a turbomachine, wherein the section is sized so that a ratio between an average length of rays extending completely in the section from a point at the periphery of said section and sweeping said section, wherein said average ray length is a maximum average length, and an average ray length extending completely in the section from another point at the periphery of said section and sweeping said section, wherein said average length is a minimum average length, is less than or equal to 2.
Dependencies are inferred from the claim text.