With the rapid development of automobile technology, has done a lot of research of automobile manufacturing enterprises in the structure design, material selection, manufacturing technology of automobile etc., hope to be able to develop safety, energy saving and environmental protection of the new automobile. Aluminium alloy forging Fang said under normal circumstances, the bodyweight of about 70% of the fuel consumption, so to reduce vehicle fuel consumption, the primary problem is how to make the automobile lightweight. The lightweight automobile first starts fromlightweight materials, such not only can reduce the body weight, increase equipment quality, reduce the engine load, also can cooperate to significantly reduce chassis parts by, the control of the vehicle, the economy is more splendid. Aluminum metal and "light metal", because of its light weight,wear resistance, corrosion resistance, good elasticity, stiffness and high specific strength, anti impact performance are excellent, good processing and molding and regeneration of higher characteristic, has become the preferred material of lightweight car make. Aluminum alloyautomobile body for its advantages of low energy consumption, but also safe and comfortable andrelatively strong load-carrying ability and favored.

The structure characteristics, aluminum body

The use of aluminum metal in the car presented increasing tendency year by year. There are a lot of use of partial or whole aluminum models, such as BMW, Land Rover, Jaguar, Volvo Audi, etc..The use of the body is the basic aluminum alloy aluminum alloy elements, by increasing or decreasing the proportion and the appropriate heat treatment technology used, enables it to achieve the desired performance. Jiade aluminum alloy forging said that at present, for aluminum alloy auto body sheets are mainly Al-Cu (2000 Series), Al-Mg (5000 Series) and Al-Mg-Si (6000 Series) 3. The 6000 series aluminum alloy because of its good plasticity, high strength, has become the preferred model body material many car manufacturers. For different parts of the body, thedifferent components, alloy composition, type and heat treatment process using aluminum is not the same. Such as bumper frame, vehicle reinforcing beam and side anticollision beam, the use ofaluminum should have sufficient light and toughness, in the event of a collision must have goodenergy absorption characteristics. Vehicle transmission system using aluminum components, not only has enough strength and toughness, but also have good thermal conductivity. The fact proves, car use aluminum indeed achieved good social and economic benefits.

When using in the production of all aluminum body, in accordance with them in the body of the function request, forging Fang aluminum alloy that can be divided into casting, stamping, die casting, aluminum casting is made capable of carrying large load components, significantly reduce weight but also has higher strength. The panel has a complex geometry, usually with vacuum die casting way, so that they have high strength. At the same time, they also have plasticity, ductility,good welding performance and higher good, ensure they have a very high security in collision.

Two, the hardware requirements for aluminum body repair

1, aluminum gas protection welding machine and special body shape repair machine

Aluminium alloy forging Fang said that due to the low melting point of aluminum, easy deformation,the requirements of welding current is low, so we must use the aluminum body gas protection welding machine dedicated. Beautiful repair machine also can not be like the appearance of repair machine as the common click stretching, can only use aluminium outline of body repair machinededicated welding meson nail, nail tensile device using meson stretching.

2, special aluminum body repair tools, strength rivet gun

Different from the traditional accident vehicle repair is the most used aluminum body, repair repairmethod of riveting, it must have the strength rivet gun. Aluminum body and repair tools must be dedicated, not with the steel body repair tool mix. Because the repair finished steel body, there will be iron tools, if used to repair the aluminum body, iron embedded aluminum surface, resulting incorrosion of the aluminum.

Dust, explosion proof system 3 set

In the grinding process of the aluminum body, will produce a lot of aluminum powder, aluminum powder is not only &, lt;, /span>harmful to the human body, and flammable and explosive, so have the anti dustcleaning system timely absorption powder explosion.

4, independent repair space

The repair process of aluminum body requirements strictly, ensure the car repair quality and repairoperation safety, avoid aluminum on the workshop pollution and explosion, to set up a separatealuminum body repair station. In addition, the aluminum body repair personnel to carry outprofessional training, master repair repair process of aluminum body, how to locate the stretching,welding, riveting, adhesive etc..

Three note, the repair operation

Local stretch of 1, aluminum alloy plate is not good, easy to crack. If the engine cover inner platebecause of complicated shape, in the car manufacturing to increase its tensile properties of high strength aluminum alloy, extension rate has exceeded 30%, so in the repair should be as far as possible to ensure the shape mutation, in order to avoid generating cracks.

2, the precision is not easy to master, resilience is difficult to control. Aluminium alloy forging Fangsaid in the repair to the extent possible using low-temperature heating method of releasing stress,the firm does not produce rebound two deformation phenomenon.

3, because the aluminum steel than soft, collision repair and various kinds of dust adhesion onsurfaces of the parts will produce bumps, scratches and other defects, so to mold cleaning,cleaning equipment, dust, air pollution to the environment and other aspects to take corresponding measures, to ensure that the parts in good condition.