Arc welding of aluminium
Buy welded billets and semi-finished products from various grades of aluminum alloys offered by Electrovek-Steel. Effective prices are from the manufacturer. The supplier guarantees prompt delivery of products to the address specified by the customer.
Arc welding of argon aluminum
The use of conventional welding methods for aluminum products is not possible due to the following technological features of this metal:
- Low melting point;
- High chemical activity (formation of surface oxide film);
- A large coefficient of bulk metal shrinkage.
Taking these features into account, the arc electric welding of aluminum by argon is most often performed. This technology makes it possible to protect the welded zone from the action of active gases in the atmosphere (primarily oxygen).
Arc welding of aluminum is carried out using filler wire. In arc welding, it performs the task of preventing internal stresses in the weld zone, since it compensates for undesirable volumetric shrinkage of aluminum.
The company Electrovek-Steel offers at an affordable price consumables and technological equipment for performing arc welding of aluminum. The supplier provides prompt delivery of products to the address set by the customer.
Sequence of the
Electric arc welding of aluminum products is performed on a direct current, with the reverse polarity of the process. Aluminum electrodes are used, or filler wire, which has a coating of suitable fluxes. The best quality seam for the permanent joint of aluminum parts is provided by the apparatus for argon-arc welding.
The electric arc is excited on a tungsten non-consumable electrode. The consumption of tungsten in welding aluminum is very small, which determines the effectiveness of this method of welding aluminum.
When the argon arc welding device is switched on, a arc is ignited between the tungsten electrode and the workpiece to be welded. Further, in the arc burning zone (a so-called «short» arc with a length of no more than 3… 4 mm is used), an aluminum filler wire is fed. The high temperature, which is created in the combustion zone, provides effective destruction of the surface film of aluminum dioxide, which is always present on the surfaces of the products to be connected.
Significantly less often, for welding aluminum, aggregates operating on alternating current are used.
Buy the consumables, rigging, as well as welded semi-finished products of aluminum or its alloys offers the company Elektrovek-steel. There are good prices from the manufacturer. The supplier provides delivery of the products to the address specified by the customer.