Alcoa Inc.

Arconic Technologies LLC

William D Bennon

John Newman

Rajeev G Kamat

Gavin Federick Wyatt-Mair

Raymond J Kilmer

Dhruba J Chakrabarti

Ali Unal

Shawn J Murtha

Vivek M Sample

David Allen Tomes, Jr

Thomas N Rouns

James Phillip Jones

Daniel T Moulton

James C Riggs

Gene R Walker

John M Newman

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

A method for producing a heat treated aluminum alloy product in a shortened period of time, the method comprising: (a) providing a heat treatable aluminum alloy; (b) working the heat treatable aluminum alloy at a solutionizing temperature to form a product; (c) first stage cooling the product to a critical temperature at which precipitation of second phase particles of the heat treatable aluminum alloy is negligible, wherein the first stage cooling comprises a first stage cooling rate from about 15&#xb0; F. per second to about 100&#xb0; F. per second; (d) second stage cooling the product to ambient temperature; (e) heating the product to an artificial aging temperature; and (f) artificially aging the product at the artificial aging temperature for a predetermined artificial aging time to form the heat treated aluminum alloy product.

Method for shortening production time of heat treated aluminum alloys

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

The present invention is directed to a process comprised of a controllably variable liquid quenching means for metal alloys at or above the Leidenfrost temperature without metal alloy distortion.

Process for quenching heat treatable metal alloys

Growing community of inventors

Kittanning, PA, United States of America

William D Bennon