[Most Complete] Process treatment of aluminum alloy processing for aluminum alloy processing method of aluminum alloy processing

How to process aluminum alloy? Today, Shenzhen Riqiya Electromechanical Co., Ltd. will bring you “aluminum alloy processing to aluminum alloy processing methods”, so that you can not only understand the previous aluminum alloy accessories processing, Can have more knowledge of the industry!

Aluminum is a light metal with silver-white luster, and its corrosion resistance has the following two characteristics:

1. The higher the purity, the better the corrosion resistance. As we all know, pure aluminum interacts with oxygen in the air and produces a thin and dense natural oxide film on the surface of aluminum, which is faster and faster than other metal oxide films. It is much thicker, which prevents the corrosion of harmful gases and moisture in the air and plays a protective role;

2. Although pure aluminum has good corrosion resistance, it has poor mechanical strength, which restricts the application of aluminum to a certain extent. Therefore, people add appropriate amounts of magnesium, copper, zinc and other metals to aluminum to make various types The high mechanical strength of aluminum alloy greatly improves the mechanical strength of aluminum, and the application range is greatly expanded. Although aluminum alloy has high mechanical strength, its corrosion resistance is worse than pure aluminum, so it may be corroded due to oxidation. This requires powder coating to protect aluminum alloy profiles. Aluminum alloys have been widely used in building doors, windows, curtain walls and other products for many years because of their small specific gravity, easy processing, and high mechanical strength. ,

Therefore, in the process of aluminum alloy processing, the surface treatment of aluminum is carried out. Aluminum profiles have many advantages such as high corrosion resistance, diversified colors, and good surface texture, which echoes with different architectural exterior wall coatings. Aluminum alloys, aluminum alloy processing The processing of aluminum materials to create colorful buildings.

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Because the material of aluminum alloy stamping is softer than metal iron, it is expensive and easy to break. Some aluminum alloy products still need follow-up processing, such as wire drawing, anodizing, etc., which are particularly prone to top scratches and scratches during stamping production. Special attention should be paid to the following points in manufacturing:

　　 1. As far as possible without affecting the number of projects, the punching holes should be arranged behind the project punching as much as possible. Even for products with a large number of punching holes, one more project can be considered and the punching holes should be arranged behind the punching hole.

　　2. The aluminum material is soft and the mold is easy to block. Therefore, when designing the mold gap, a gap of 10% of the thickness of the bilateral material should be placed.

3. When bending and forming, because the aluminum material is easy to produce aluminum chips during bending, it will cause spot damage and indentation. The aluminum raw material needs to be pasted with PE film. In the case of rollers and electroplating, the forming block shall be polished and plated with hard chrome Better.

4. For stamping parts that need to be processed after anode, if there are flattening and flattening processes of 180°, the product cannot be completely compressed. Complete compression will cause acid spitting, and a 0.2-0.3mm seam must be left for acid The liquid flows out smoothly and in time, so in this process, it is necessary to limit the processing position of aluminum alloy processing block and calibrate the mold higher than the mold.

　　5. Because aluminum is brittle and easy to crack, especially in the case of reverse folding, try not to make crimping. Even if you do, make the crimping a little wider and lighter.

6. All aluminum knife edges are required to be cut with slow-moving wire to prevent burrs and irregular blanking. Aluminum parts are prone to high temperature, so the punch hardness must be 60° or more, at least SKD11 material or more, no D2 Poor quality punch.

　　Aluminum material is relatively soft, so it is easy to produce top damage, crushing, scratching and deformation during stamping production. In addition to the requirements on the mold, the following points must be done during stamping production:

1. If you want to punch aluminum parts well and reduce the defect rate, you must first do 5S, especially cleaning, including molds, punching table, water line and packaging materials must be free of sharp debris, no dirt, and regular and clear rectification , The mold must be cleaned up and down without debris.

　　2. If the product has a large burr, it must be sent to the mold for repair in time and follow up to the result.

　　3. Aluminum parts are easy to heat up and become hard when they are stacked together. Therefore, when punching and blanking, it is necessary to apply a little pressure plate oil on the material (which can dissipate heat and smoothly dredge the blanking) and then press.

4. For products with more punching holes, you need to clean the surface of the mold to ensure that the mold and product are always clean and free of debris and reduce top damage. If the top damage is found, the problem of the top damage of the mold must be found and solved before proceeding. Production.

　　5. Flattening the mold and pushing block will produce aluminum scraps, so the aluminum scraps under the pushing block must be cleaned every day after the block is produced.