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What are automobile aluminum parts

Time:2020-09-27 Source:未知 Click:time

The repair of automobile aluminum parts is indispensable when talking about automobile aluminum parts. Automobile aluminum is a necessary material for many automobile manufacturing enterprises.
Automotive aluminum has the following characteristics: the aluminum without the tendency of brittle fracture at low temperatures, with lower temperature, the mechanical properties have some change, the strength increased, but the plastic was decreased very little, so sometimes in order to reduce or eliminate internal stress of castings, casting or casting after quenching, can be cooled to 50 ℃, 70 ℃ or lower temperature, keep 2 to 3 h, then heating to room temperature in air or water, or artificial aging is on going, the process called cold treatment. Annealing treatment of automobile aluminum parts: heating aluminum alloy castings to a higher temperature, generally about 300 ℃, after holding for a certain time, with the furnace cooling to room temperature, the process is called annealing. During the annealing process, the solid solution is decomposed and the second phase particles are aggregated, which can eliminate the internal stress of casting, stabilize the casting size, reduce the deformation and increase the plasticity of casting.
The aluminum industry analysis predicts that automotive applications will rise by 50% in five years, from 250 pounds per car in 2000 to 380 pounds per car in 2005. Polycrystalline diamond (PCD) tools are needed for mass production of aluminum parts. The main cause of PCD tool damage is chip production during machining. To keep the PCD tool cutting edge intact, it is best to distribute the cutting load evenly over each milling cutter tooth.
The repair of automobile aluminum parts is the concern of many 4S shops and auto repair factories. Such as the car roof was hit by hail and other small pit, most of the repair shop knowledge scraping putty, paint, and so on. Individual need to use welding rod welding.
(1) when the maintenance aluminum body panels, should first pay attention to the resilience of aluminum is small, simple concave and convex deformation, should first determine how many drawing should be welding point to just pull out the part of the sag, with a special aluminum body plastichammer gently draw, the solder joint, to make all of the solder joints slowly pull up at the same time, the aluminum body cannot use the hammer, because aluminous material is very soft, if serious deformation, can only cut part deformation place with a special welding machine welding aluminum body up and smooth, the other aluminum body not heat bilges cold shrink, shrink the fire will only cause more damage to the aluminum body.
(2) Aluminum body welding method, first must confirm whether the welding wire and the body material is the same, then use detergent or polishing machine to remove all the car body dust, paint, aluminum body welding welding.

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