ChinaSavvy, Western managed, British owned and located in the heart of industrial China, is capable of supplying world class standards when it comes to aluminum sheet fabrication. Operating to ISO:9001 regulations and quality standards, ChinaSavvy supplies world-class aluminum sheet fabrications offering the following specialized services:
Our aluminum fabrication shops are able to offer you the world-class value added services associated with aluminum sheet fabrication, including:
Cutting the sheet to size, we apply specialist band saws, cut-off saws and cutting torches. The sheet is sheared, sawed or chiseled using CNC cutters (which apply mill bits, water jets and lasers) and hand-held torches (such as plasma torches and oxy-fuel torches).
Our aluminum fabricators’ capabilities include:
Water Jet Cutting:
The use of a high pressure water jet combined with an abrasive results in a cold cut with sharp edges. This method is able to cut through a sheet thickness of 120 millimeters.
Mechanical Cutting:
Sawing and mechanical cutting remains a popular way to cut aluminum sheets simply because it a versatile process that is economically sound. It can be done using the common tools at the disposal of aluminum fabrication shops, resulting in a good cutting speeds, but not a very high cutting zone quality.
Laser Cutting:
With a low heat transfer to the aluminium piece, laser cutting also yields a high quality cut and narrow kerf. Equipment costs are high and high power outputs are required.
Plasma Cutting:
Between the thickness ranges of that of foil and 150 millimeters, this is faster than laser cutting for the same thickness range, but gives a lower quality cut.
*NOTE: Because the melting point of aluminium is lower than that of alumina, a flame torch cannot be used for cutting.
The forming process is completed through the use of hammering (which can be both manual or mechanical), press brakes and other similar specialized tools. Modern fabrication techniques tend to apply press-brakes to air-bend sheets into form, while programming software in CNC controlled press brake machines are able to position parts, that were cut, into place and make the necessary ‘bend lines’ in the correct places.
Capabilities of our aluminum fabrication shops include:
See also Aluminium Tube Fabrication.
Using portable metal working tools as well as magnetic base drills, mills (entailing the use of rotary cutters) and metal lathes.
ChinaSavvy has a wide selection of specialized services, including the following capabilities:
Completing welds per engineering drawings, welders will assembled formed and machined parts. Using a variety of methods, including TIG Welding, specialized personnel and trained professionals also deal with special precautions in order to prevent warping of the weldment due to heat. This includes using stout fixtures, staggered fashion welding, re-designing of the weldments and covering the weld with sand during the cooling process. Straightening operation can also be applied after welding has been completed.
Assembly is commonly done through the combination of manual and mechanical labor, using welding, riveting, more bending, threaded fasteners and adhesive binding techniques.
ChinaSavvy brings and array of specialized services to the table, including:
Considerations to be taken into account when manufacturing and joining aluminum:
Popular joining methods applied:
Popular joining methods used includes:
With the joints made of a weaker material (such as rubbers or plastics) than the base material, it is a binding process more appropriate for the creating lap joints and is very rarely used to create butt joints.
Often combined with welding and riveting to get better results, the following advantages are associated with Adhesive Bonding:
The disadvantages of Adhesive Bonding:
Formed by pressing a punch on the aluminum plates and deforming it in a die, clinching requires access to the joint on two (or both) sides. Though it is a process that requires different set of tools for different tasks, and it is not an appropriate method for visible areas, it does have the following advantages:
MIG welding is most commonly used for aluminium plate thicknesses of more than 6 millimeters and chosen if high welding speeds are needed combined with long weld lengths. More difficult to control at lower thicknesses, the lower end of the MIG welding range is around 3 millimeters. When pulse MIG welding is applied, a thickness as low as 1 millimeters can be welded.
While it is a known process and easy to automate with good accessibility, a high control over the process is required, and fatigue performance and the need for post treatment is among the disadvantages associated with MIG welding.
TIG welding is used on aluminum sheets with a thickness as small as 0.7 millimeters (more commonly for sheet thicknesses from 1 milometer to 3 millimeters) and the chosen process for shorter weld lengths.
Used to make flange and lap joints, it also requires that both sides of the joint be visible. RSW is a known process that is easy to automate and causes low deformation, but it cannot be used to create tee, butt and edge joints.
Other disadvantages of RSW includes the fat that it has a high investment cost for production and the aluminium to be welded requires surface preparation.
Suitable for both flange and lap joints, aluminum fabricators use either solid or blind rivets of either steel or aluminum. Aluminum is the preferred rivet material as it is cheaper.
Metal piercing rivets are punched through the material (with no holes being drilled), causing the tubular end to flair open and lock the rivet in place, whereas blind rivets need only access from one side.
Back to Main Page: Aluminum Fabricators
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An aluminum plate or aluminum strip made of aluminum is the main raw material mixed with other alloying elements. Aluminum strip is an essential basic material for developing my country’s national economy and is widely used in aviation, aerospace, construction, printing, transportation, electronics, chemicals, food, medicine, and other industries.
Driven by the rapid development of the economy, the investment in aluminum plates and strips in my country has continued to heat up, and the consumption of aluminum plates and strips has continued to grow steadily. The demand for exterior building and interior decoration, aluminum foil manufacturing, printing, PS plate, manufacturing, home appliances, food packaging, and other industries has further increased, becoming the main driving force for the growth of aluminum sheet and strip consumption. At the same time, the transportation industry is becoming a new consumption growth point.
Already know much about economic aluminum, how much do you know about Aluminium production? Keep read on this article, and you will know.
Aluminum alloy cold rolling is generally divided into casting – hot rolling – cold rolling – finishing.
The purpose of smelting and casting is to produce alloys with satisfactory composition and high melt purity and create favorable conditions for casting alloys of various shapes.
The steps of the melting and casting process: batching – feeding – melting – stirring after melting, slag removal – pre-analysis and sampling – adding alloy to adjust the composition, stirring – refining – standing – guiding furnace casting.
1. Hot rolling generally refers to rolling performed above the metal recrystallization temperature;
2. During the hot rolling process, the metal has a process of hardening and softening simultaneously. Due to the influence of the deformation speed, as long as the recovery and recrystallization process is too late, there will be a certain amount of work hardening;
3. The metal recrystallization after hot rolling is incomplete. That is, the recrystallization structure and the deformed structure coexist;
4. Hot rolling can improve the processing performance of metals and alloys and reduce or eliminate casting defects.
Casting and rolling process: liquid metal, front box (liquid level control), casting and rolling mill (lubricating system, cooling water), shearing machine, cooler.
1. The casting and rolling temperature are generally between 680 °C and 700 °C; the lower, the better, the stable casting and rolling line generally stops once a month or more to re-stand the plate. During the production process, it is necessary to strictly control the liquid level of the front box to prevent low liquid level;
2. Lubrication uses C powder with incomplete combustion of gas for lubrication, which is also one of the reasons that the surface of the casting and rolling stock is dirty;
3. The production speed is generally between 1.5m/min-2.5m/min;
4. The surface quality of products produced by casting and rolling is generally relatively low and generally cannot meet the requirements of special physical and chemical properties.
1. Cold rolling refers to the rolling production method below the recrystallization temperature;
2. There will be no dynamic recrystallization during the rolling process, the temperature will rise to the recovery temperature at most, the cold rolling will appear to work hardening, and the work hardening rate will be large;
3. The cold-rolled sheet and strip have high dimensional accuracy, good surface quality, uniform structure and performance, and products in various states can be obtained with heat treatment;
4. Cold rolling can roll out thin strips, but it has the disadvantages of large deformation energy consumption and many processing passes.
1. Finishing is a processing method to make the cold-rolled sheet meet the customer’s requirements or a processing method to facilitate the subsequent processing of the product;
2. The finishing equipment can correct the defects in the production process of hot rolling and cold rolling, such as cracked edges, oil strips, poor shape, residual stress, etc. It needs to ensure that no other defects are introduced in the production process;
3. Various finishing equipment includes cross-cutting, longitudinal shearing, bending and straightening, annealing furnace, slitting machine, etc.
At Chal, all aluminium alloys are made through the above fine processes. We focus on every product provided to our customers and pay much more attention to the satisfaction of our clients than benefits. Please do not hesitate to contact us for your desired products.