Raytheon Technologies Corporation

United Technologies Corporation

Rtx Corporation

Daniel Gynther

David Ulrich Furrer

James R Murdock

Andrew L Haynes

Vasisht Venkatesh

Janet M Stanley

Michael J Linden

James Olaf Hansen

Raja Kountanya

Krzysztof Barnat

Luke H Rettberg

Michael F Machinchick

John Palitsch

Nicolas Figueiredo

Stephen E Graushinsky

John H Nortrup

Ronald A Talarico

John Richard Palitsch

Disclosed is a method of making an integrally bladed rotor. According to the method, a rotor disk comprising a radially outer rim surface is provided. A portion of the disk outer rim surface is removed, leaving a protrusion on the rotor disk outer rim surface. The disk with material removed is subjected to thermal processing. A blade comprising an airfoil and a base is positioned such that a base surface is in contact with the protrusion, and heat, pressure, and motion are applied between the blade and the disk to friction weld the base surface to the protrusion.

Method of making integrally bladed rotor

A method of forming an airfoil includes placing a material onto a die that is heated to a predetermined temperature to pre-heat the material to a first temperature, while the die is in an open position. The method further includes closing the die at a predetermined rate and holding the die in a closed position for a predetermined period of time at a first force. The method still further includes removing the part from the die, cooling the die, placing the part onto the die, and closing the die at a second force.

Method of forming aluminum alloy airfoils

Disclosed is a method of making an integrally bladed rotor. According to the method, a titanium alloy rotor disk with 15-50% by volume of primary alpha grains with a grain size less than 10 &#x3bc;m and secondary alpha grains comprising widmanstatten grains with a grain size less than 1.0 &#x3bc;m is subjected to thermal processing. After thermal processing, a blade having an airfoil and a base is positioned such that a base surface is in contact with an outer rim surface of the disk. Heat, pressure, and motion are applied between the blade and the disk to friction weld the base surface to the disk outer rim surface.

Process of making integrally bladed rotor

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Marlborough, CT, United States of America

Daniel Gynther