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What are the processing techniques of aluminium alloy? - 1-LVDCPN - 06-10-2021
Aluminium alloy is a commonly used industrial material. It is very light and weighs about one-third of the same volume of copper or steel. It is corrosion-resistant, is an excellent conductor of heat and electricity, reflects light and radiant heat, is non-magnetic, is not easy to absorb neutrons, can be safely used in food and medicine. And it can be formed into various kinds of industrial materials by all known metal processing techniques. Such as aluminium tube, aluminium circle, aluminium sheet, aluminium foil, aluminium coil, aluminium strip, etc. This article will introduce several common aluminium alloy processing techniques.
(1) Classified according to the force and deformation mode of the product
A. Rolling
Rolling is a deformation process in which the ingot is drawn into the rotating rolls by friction, and with the pressure applied by the rolls, the cross-section is reduced, the shape changes, the thickness becomes thinner and the length increases. According to the different rotation directions of the rolls, rolling can be divided into longitudinal rolling, cross rolling and skew rolling.
During longitudinal rolling, the direction of rotation of the work rolls is opposite, and the longitudinal axis of the rolled piece is perpendicular to the axis of the roll. It is the most commonly used method in flat roll rolling of aluminium alloy plates, strips, and foils.
longitudinal rolling
During cross rolling, the direction of rotation is the same, and the longitudinal axis of the rolling piece is parallel to the axis of the roll, which is rarely used in the rolling of aluminium alloy plate and strip.
Cross rolling
During skew rolling, the rotation direction of the work roll is the same, and the longitudinal axis of the rolling piece is in a certain direction slope. In the production of aluminium alloy pipes and some special-shaped products, two-roll or multi-roll skew-rolling is often used. According to different roll systems, aluminium alloy rolling can be divided into two-roll rolling, multi-roll rolling and special roll rolling (such as planetary rolling, V-shaped rolling, etc.) rolling: according to different roll shapes, aluminium alloy rolling can be divided into flat roll rolling and grooved roll rolling. According to different product varieties, aluminium alloy rolling can be divided into plate, strip, foil rolling, bar, flat bar and special-shaped section rolling, pipe and hollow section rolling, etc.
4. Aluminium tube supplier recommendation
The quality of aluminium tube suppliers on the market is uneven, and the quality and price of aluminium tubes cannot be guaranteed. CHAL Aluminium Corporation is one of the leading aluminium tube suppliers in China. Its products are widely used in the automotive industry, construction industry, HAVC&R and heat transfer industry, aviation, railway transportation, marine industry, etc. Our main aluminium tubes include the following:
RE: What are the processing techniques of aluminium alloy? - AlexaJhon - 06-14-2021
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RE: What are the processing techniques of aluminium alloy? - lolitahe69 - 06-22-2021
Between the production of aluminum from bauxite to well-known end products like buildings and beverage containers lies processing. The processing of aluminum—using castings, extrusions and mill products—allows the industry to support end users to become more innovative with their designs and utilize greater technologies. Lightweight, durable and infinitely recyclable, value-added aluminum products can lower energy costs and carbon emissions in dozens of applications.
Castings
Casting is a simple, inexpensive and versatile way of forming aluminum into a wide array of products. Such items as power transmissions and car engines and the cap atop the Washington Monument were all produced through the aluminum casting process. Most castings, especially large aluminum products, are usually made in sand molds.
Extrusions
Extrusion is a widely used aluminum forming process that delivers almost unlimited possibilities in product design. The extrusion process is similar to the childhood pastime of creating long strands of play-dough by forcing the product through a plastic-shaped die. Fortunately, aluminum’s weight, strength and high thermal conductivity vastly outweigh that of play-dough, leading to its presence in a wide range of consumer and industrial goods. The aluminum extrusion process has the added benefit of enabling fast product development cycles due to its low-cost and flexible tooling. Manufacturers can accelerate prototype and testing phases by rapidly creating and evaluating different designs.
Forgings
Forging is a manufacturing process where metal is pressed, pounded or squeezed under great pressure to produce high-strength parts. Forged aluminum is ideal for applications where performance and safety are critical but a lighter-weight metal is needed for speed or energy efficiency. The forged aluminum wheels on Daytona racecars are a perfect example. There are primarily three types of forging processes: open-die forging, ideal for larger aluminum components; closed-die forging, well-suited for more intricate designs and tighter tolerances; and ring-rolled forging used to create high-strength ring-shaped applications.
Pigments & Powder
Aluminum powder, found in products ranging from suntan lotion to lightweight concrete to solar panels, is produced by melting aluminum ingot in a gas furnace and spraying the molten metal under high pressure into a fine granular powder. Two types of powder can be produced from this process, depending on the atomizing gas used to "blow" the molten aluminum from a nozzle tip.
Rod & Bar
Aluminum rod and bar is produced by several different processes namely extrusion, rolling and coiling, or drawn directly from molten aluminum. These processes elongate the aluminum into circular or bar-shaped pieces that can be machined into all kinds of applications. Many machine and equipment parts, such as rivets, nails, screws and bolts, are made from rod and bar. Aluminum wire is used pervasively in electrical transmission applications due to its superior conductivity and non-corrosive nature. Every-day products produced from wire, rod and bar include chain-link fence material, aluminum antennas, zippers and those handy re-twistable twist-ties used to keep food fresh.
Sheet & Plate
When aluminum is passed between rolls under pressure, it becomes thinner and longer in the direction in which it is moving. This simple process is the basis for producing aluminum plate, sheet and foil. Sheet, the most widely used form of industrial aluminum, is used in applications including aerospace (the skins of planes), transportation (auto body sheet), packaging (can bodies and ends) and construction (building facades).