Alcoa Inc.

Arconic Corporation

Howmet Aerospace Inc.

Arconic Technologies LLC

Alcoa USA Corp.

Raymond J Kilmer

John B Eye

John Newman

Stephen F Baumann

Thomas N Rouns

James L Kirby

Ralph R Sawtell

Baolute Ren

Michael P Danz

John M Newman

Jen C Lin

Michael Cardinale

James T Burg

Gabriele F Ciccola

Mark Weaver

Gavin Federick Wyatt-Mair

Ali Unal

John R Smith

Neville C Whittle

Santosh Prasad

Robert J Speer

Vivek M Sample

Wei Wen

Patricia Stewart

Ming Li

David Allen Tomes, Jr

Erin J Fulton

Thomas J Kasun

Judodine Nichols

David F Iwig

William D Bennon

Mikhail Gershenzon

Julie A Wise

Eric G Bogan

Shawn J Clark

Dharma Maddala

Charles L Dobbs

James C Riggs

Robert P Anthony

Joseph R Dougherty

Deborah B Scott, Legal Representative

Jason C Brem

John F Butler, Jr

William B Leith

Shannon L I Parks

Philip Gacka

Vivek Sample

New aluminum alloys are disclosed and generally include 0.6-1.4 wt. % Si, 0.25-0.90 wt. % Mg, wherein the ratio of wt. % Si to wt. % Mg is from 1.05:1 to 5.0:1, 0.25-2.0 wt. % Cu, 0.10-3.5 wt. % Zn, 0.01-1.0 wt. % Fe, up to 0.8 wt. % Mn, up to 0.25 wt. % Cr, up to 0.20 wt. % Zr, up to 0.20 wt. % V, and up to 0.15 wt. % Ti, wherein the total of Fe+Mn+Cr+Zr+V+Ti is not greater than 2.0 wt. %, the balance being aluminum and impurities. The new aluminum alloys may include Q phase precipitates. In some embodiments, the solvus temperature of the Q phase precipitates is not greater than 950&#xb0; F.

Aluminum alloys, and methods for producing the same

The present invention, in some embodiments, is a method of forming an O temper or T temper product that includes obtaining a coil of a non-ferrous alloy strip as feedstock; uncoiling the coil of the feedstock; heating the feedstock to a temperature between a recrystallization temperature of the non-ferrous alloy and 10 degrees Fahrenheit below a solidus temperature of the non-ferrous alloy; and quenching the feedstock to form a heat-treated product having am O temper or T temper. The non-ferrous alloy strip used in the method excludes aluminum alloys having 0.4 weight percent silicon, less than 0.2 weight percent iron, 0.35 to 0.40 weight percent copper, 0.9 weight percent manganese, and 1 weight percent magnesium.

Methods of off-line heat treatment of non-ferrous alloy feedstock

An apparatus and method for rolling aluminum sheet uses a texture roll to roll the sheet while is it hot and has reduced yield strength. The texture rolling may be used to remediate defects in the sheet at a variety of stages in rolling, and may facilitate subsequent rolling stages.

Apparatus and method for rolling metal

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

Heat treatable aluminum alloy strips and methods for making the same are disclosed. The heat treatable aluminum alloy strips are continuously cast and quenched, with optional rolling occurring before and/or after quenching. After quenching, the heat treatable aluminum alloy strip is neither annealed nor solution heat treated.

Aluminum alloys and methods for producing the same

Fertilizer compositions are provided, where a fertilizer composition includes: an inner portion including a nitrogen containing material; and an outer portion covering the inner portion, the outer portion including a release agent (e.g. HTC, BR).

Fertilizer compositions and methods of making the same

Various illustrative embodiments of a multi-layer brazing sheet are provided. The multi-layer brazing sheet demonstrates improved corrosion resistance on its exposed air side surface.

Multi-layer brazing sheet

A heat exchanger tube having enhanced corrosion resistance and improved resistance to high burst pressures. The heat exchanger tube comprises an aluminum alloy that consists essentially of about 0.01-1.5% silicon, up to about 1.2% copper, up to about 2.0% manganese, about 0.01-1.0% iron, about 0.01-5.0% zinc, up to about 0.02% titanium and the balance substantially aluminum and incidental elements and impurities.

Heat exchanger tubing by continuous extrusion

A method of casting a multi-layered metal ingot including the steps of delivering a metallic divider member into a direct chill mold, pouring a first molten metal into the mold on one side of the divider member, and pouring a second molten metal into the mold on the other side of the divider member, and allowing the first molten metal and the second molten metal solidify to form a metal ingot which includes the divider metal layer disposed there between.

Simultaneous multi-alloy casting

A metallurgical product consists essentially of a core aluminum alloy, purposefully tailored through chemistry and processing route to resist recrystallization during the brazing cycle to intentionally exploit the higher strengths immediately after brazing of a deformed and recovered microstructure, the core aluminum alloy being bonded on one side to an aluminum alloy interliner designed to be resistant to localized erosion, which, in turn, is bonded to a 4xxx calling alloy.

Recovered high strength multi-layer aluminum brazing sheet products

A brazing flux mixture comprised of brazing flux, a polyvinyl butyral resin binder, and an organic solvent which can be applied over an entire aluminum alloy brazing sheet, or can be applied on the brazing sheet only where metallurgical bonds or joints are required, that is sufficiently durable to withstand processing operations and also provides good metallurgical bonds upon brazing.

Flux coated brazing sheet

The present invention relates to multiple layer aluminum brazing sheet having a core, a braze cladding, and an interliner therebetween that, when fabricated in the fully annealed condition (O-temper), forms a continuous and dense dispersoid band in the core in addition to having an additional sacrificial layer for exceptional post brazed corrosion resistance. This present invention also relates to the process used to fabricate these alloys.

Ultra-longlife, high formability brazing sheet

A wrought aluminum sheet product having a textured surface for improved heat transfer properties. A plurality of textured features having dimensions of about 1-50 microns is roll textured onto one or both sides of the sheet. The aluminum sheet may be used as the fins or tubing of a heat exchanger.

Micro-textured heat transfer surfaces

Growing community of inventors

Lancaster, PA, United States of America

Raymond J Kilmer