US 5,562,245 A · Method of producing a circular fibre-reinforced metal article, and apparatus for use in said method

Abstract

A method of producing a circular metal article reinforced by fibres in selected parts of its cross-section is described in which a metal blank of the article is formed and provided with at least one annular groove opening in the axial direction, preforms of reinforcing fibre and filler metal are placed in the groove which is then closed by a metal plug, and the assembly is isothermally forged to produce the article in a single forging step which serves to compress the preforms, weld the assembly together, and shape the article. Such articles may be used for machining high performance rotors for turbojet engines. Apparatus for use in the method is also described.

Claims15

Dependent claims

A method of producing a circular, fibre-reinforced metal article, comprising the steps of:

making a metal blank of said article;
forming at least one annular groove in said blank, said annular groove having an axis and being open at least in the direction of said axis;
making preforms of fibre and filler metal;
placing said preforms into said annular groove;
and
isothermally forging said blank and said preforms to produce the said article in a single isothermal forging step wherein said preforms are compressed, the compressed preforms are welded to the blank, and the article is shaped.

3 more elements

Dependencies are inferred from the claim text.

Method of producing a circular fibre-reinforced metal article, and apparatus for use in said method

Life of this patent

Method of producing a circular fibre-reinforced metal article, and apparatus for use in said method

Life of this patent

Abstract

Claims15