In the technical field of metal melting, a unisource high-strength ultrasound-assisted method for casting large-specification 2XXX series aluminum alloy round ingots applies in an ingot guiding process, a unisource high-strength ultrasonic vibration system to the center of a hot-top crystallizer, ultrasound directly acts on the center position of a crystallizer, and enough ultrasonic field energy is provided for a melt by controlling the power of the ultrasonic vibration system, so that an aluminum alloy solidification process is implemented under the effect of ultrasound, homogenization of microstructures and components of ingots is promoted, and the existing problems that microstructures are thick and crystal phases are enriched due to slow cooling of centers of large-specification round ingots are effectively solved, meanwhile, the problems of great operation difficulty and heavy workload during multisource ultrasonic coupling are avoided.

Provided is a method for manufacturing an aluminum alloy exterior material for smart devices which is formed not by extrusion or die casting but by a strip casting method using a rotating mold, and an aluminum alloy exterior material manufactured by the method. In accordance with an embodiment, the method includes: preparing a molted aluminum alloy; casting the molten aluminum alloy into a sheet shape using a rotating mold to form an aluminum alloy cast sheet; and anodizing the aluminum alloy cast sheet, wherein in the forming of an aluminum alloy cast sheet, X in Equation 1 below may have a value in the range of greater than 0 and equal to or less than 0.15.

X=(W.sub.Zn+W.sub.Mg+W.sub.Cu+W.sub.Si)/TC<Equation 1>

Here, W.sub.Zn+W.sub.Mg+W.sub.Cu+W.sub.Si+WSi is the total content (wt %) of zinc, magnesium, copper and silicon) in the aluminum alloy, and TC is the thermal conductivity (W/m.Math.K) of the rotating mold.

Described are processes for continuously casting aluminum alloys, wherein the alloys comprise or are modified to comprise Mg. The processes involve adding Ca to the molten aluminum alloy prior to casting in order to decrease surface defects and exudates in the cast aluminum alloys.

A vehicle wheel, or other axisymmetric shaped article, is formed of an aluminum-based alloy by a combination of a liquid forging step of a pre-form shape of the wheel and a subsequent solid-state flow forming step to complete the specified shape of the wheel. An aluminum-based alloy, containing specified amounts of zinc, silicon, and magnesium is devised for use in the forming process. The composition of the aluminum-based alloy is devised to facilitate the performance of each forming step of the article and the mechanical properties of the final shaped product.

An apparatus and a system including a casting pit; a mold including a reservoir and a cavity; a coolant feed operable to introduce a coolant to a periphery of a metal emerging from the mold cavity; an array of water vapor exhaust ports about at least the top periphery of the casting pit; a mechanism to introduce an inert fluid into the coolant feed. A method for a direct chill casting including, after detecting a bleed out, exhausting generated gas from the casting pit at a flow volume rate that is enhanced relative to a flow volume rate prior to detecting bleed out or run out; introducing an inert gas into the casting pit; and introducing an inert fluid into a coolant feed to the casting mold.

An aluminum alloy wire with a composition that contains at least one metallic element selected from the group consisting of Fe, Cr, Ni, Co, Ti, Sc, Zr, Nb, Hf, and Ta in the total amount of more than 1.4 atomic percent and 5.1 atomic percent or less and a remainder of Al and incidental impurities, wherein the aluminum alloy wire has a tensile strength of 250 MPa or more and an electrical conductivity of 50% IACS or more.

The present disclosure generally provides 6xxx series aluminum alloys and methods of making the same, such as through casting and rolling. The disclosure also provides products made from such alloys. The disclosure also provides various end uses of such products, such as in automotive, transportation, electronics, aerospace, and industrial applications, among others.

The subject matter of the invention is a sheet for stamped lining or structural parts for an auto body stilled referred to as a body-in-white, made of aluminum alloy having the following composition (% by weight): Si: 0.85-1.20, Fe: <0.30, Cu: 0.10-0.30, Mg: 0.70-0.90, Mn: <0.3; Zn: 0.9-1.60, V: 0.02-0.30, Ti: 0.05-0.20, other elements <0.05 each and <0.15 total, balance aluminum, having, after solution heat treatment, quenching, pre-aging or reversion, possible aging at ambient temperature for 72 hours to 6 months, 2% controlled tensile pre-deformation, and paint baking treatment for 20 minutes at 185 C., an elastic limit Rpo.2 of at least 300 MPa. The sheets according to the invention make it possible to reduce the thickness of the parts while still meeting all the other required properties.

The present invention relates to a composite material based on aluminium and alumina, its method of manufacture, and a cable comprising said composite material as an electrical conductor element.

A method of manufacturing an aluminium alloy strip article of variable width by means of continuously casting an aluminium alloy strip article, typically in a gauge range of 3 mm to 40 mm, and including the steps of, providing a first continuously cast aluminium alloy strip article at intermediate gauge and at least a second continuously cast aluminium alloy strip article at intermediate gauge, each of the aluminium alloy strip articles to be welded have the same thickness and are of the same aluminium alloy; welding the first aluminium alloy strip article at intermediate gauge to the second aluminium alloy strip article at intermediate gauge to form a welded aluminium alloy strip article; and rolling in at least one further rolling step of the welded strip article to a final gauge.