Alcoa Inc.

Arconic Corporation

Vivek M Sample

Vincent Paola

Ronald G Chabal

Scott E Reighard

Domenic A Ghiardi

Michael Cardinale

James T Burg

Raymond J Kilmer

Dhruba J Chakrabarti

Robert J Speer

Erin J Fulton

William D Bennon

Jacob A Kallivayalil

Eric G Bogan

William B Leith

Mark A Newborn

Philip Gacka

David E Gaylord

Jason C Brem

Various methods are disclosed for additively manufacturing a feedstock material to create an AM preform, wherein the AM preform is configured with a body having an internal passage defined therein, wherein the internal passage further includes at least one of a void and a channel; inserting a filler material into the internal passage of the AM preform; closing the AM preform with an enclosure component such that the filler material is retained within the internal passage of the AM preform; and deforming the AM preform to a sufficient amount to create a product having an internal passage therein, wherein the product is configured with wrought properties for that material via the deforming step.

Methods of producing wrought products with internal passages

This invention discloses a molten metal supply system that can supply molten metal to a downstream process at a constant pressure and molten metal flow rate. The molten metal supply system includes a molten metal supply source, a plurality of injectors, and a plurality of check valves.

Apparatus and method for high pressure extrusion with molten aluminum

A method of artificially aging an aluminum alloy product to achieve a property in the product having the steps of aging the product to achieve the property by heating the product over an aging period, the aging period including a time period where the product is in an underaged state, and terminating the heating when the property is achieved according to a mathematical formula. The property is calculated as a function of time and product temperature measured over the aging period. Calculation of the property includes integration of the thermal effects on the product over the entire aging period including during the time period of underaged product state.

Artificial aging control of aluminum alloys

A molten metal supply system () includes a plurality of injectors () each having an injector housing () and a reciprocating piston (). A molten metal supply source () is in fluid communication with the housing () of each of the injectors (). The piston () is movable through a first stroke allowing molten metal () to be received into the housing () from the molten metal supply source (), and a second stroke for displacing the molten metal () from the housing (). A pressurized gas supply source () is in fluid communication with the housing () of each of the injectors () through respective gas control valves (). The molten metal supply system () is in fluid communication with an outlet manifold () having a plurality of outlet dies (), which may be used to form continuous metal articles including rods, bars, ingots, and continuous plate.

Continuous pressure molten metal supply system and method for forming continuous metal articles

A molten metal supply system ( ) includes a plurality of injectors ( ) each having an injector housing ( ) and a reciprocating piston ( ). A molten metal supply source ( ) is in fluid communication with the housing ( ) of each of the injectors ( ). The piston ( ) is movable through a first stroke allowing molten metal ( ) to be received into the housing ( ) from the molten metal supply source ( ), and a second stroke for displacing the molten metal ( ) from the housing ( ). A pressurized gas supply source ( ) is in fluid communication with the housing ( ) of each of the injectors ( ) through respective gas control valves ( ). The injectors ( ) each include an intake/injection port ( ) in the form of a dual action valve ( ) adapted to admit and dispense molten metal from the injectors ( ).

Dual action valve for molten metal applications

A molten metal supply system ( ) includes a plurality of injectors ( ) each having an injector housing ( ) and a reciprocating piston ( ). A molten metal supply source ( ) is in fluid communication with the housing ( ) of each of the injectors ( ). The piston ( ) is movable through a return stroke allowing molten metal ( ) to be received into the housing ( ) from the molten metal supply source ( ), and a displacement stroke for displacing the molten metal ( ) from the housing ( ). A pressurized gas supply source ( ) is in fluid communication with the housing ( ) of each of the injectors ( ) through respective gas control valves ( ). The gas supply source ( ) is used to pressurize a space formed between the molten metal ( ) and the piston ( ) during the return stroke of the piston ( ) of each of the injectors ( ).

Continuous pressure molten metal supply system and method

A molten metal supply system ( ) includes a plurality of injectors ( ) each having an injector housing ( ) and a reciprocating piston ( ). A molten metal supply source ( ) is in fluid communication with the housing ( ) of each of the injectors ( ). The piston ( ) is movable through a first stroke allowing molten metal ( ) to be received into the housing ( ) from the molten metal supply source ( ), and a second stroke for displacing the molten metal ( ) from the housing ( ). A pressurized gas supply source ( ) is in fluid communication with the housing ( ) of each of the injectors ( ) through respective gas control valves ( ). The molten metal supply system ( ) is in fluid communication with an outlet manifold ( ) having a plurality of outlet dies ( ), which may be used to form continuous metal articles including rods, bars, ingots, and continuous plate.

An injector ( ) for a molten metal supply system includes an injector housing ( ) configured to contain molten metal. A molten metal supply source ( ) is in fluid communication with the housing ( ). A piston ( ) extends into the housing ( ). The piston ( ) is movable through a return stroke allowing molten metal ( ) to be received into the housing ( ) from the molten metal supply source ( ), and a displacement stroke for displacing the molten metal ( ) from the housing ( ). A gas supply source ( ) is in fluid communication with the housing ( ) through a gas control valve ( ). The gas supply source ( ) is used to pressurize a space ( ) formed between the molten metal ( ) and the piston ( ) during the return stroke of the piston ( ) such that when the piston ( ) moves through the displacement stroke a compressed gas filled space is formed.

Injector for molten metal supply system

An injector ( ) for a molten metal supply system includes an injector housing (102) configured to contain molten metal. A molten metal supply source ( ) is in fluid communication with the housing ( ). A piston ( ) extends into the housing ( ). The piston ( ) is movable through a return stroke allowing molten metal ( ) to be received into the housing ( ) from the molten metal supply source ( ), and a displacement stroke for displacing the molten metal ( ) from the housing ( ). A gas supply source ( ) is in fluid communication with the housing ( ) through a gas control valve ( ). The gas supply source ( ) is used to pressurize a space ( ) formed between the molten metal ( ) and the piston ( ) during the return stroke of the piston ( ) such that when the piston ( ) moves through the displacement stroke a compressed gas filled space is formed.

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Murrysville, PA, United States of America

Vivek M Sample