How to solve the problem of stamping processing of industrial aluminum profiles

by:Zeyi     2021-06-20
Industrial aluminum stamping processing aluminum alloy stamping because the material is softer than metal iron, it is expensive, easy to break, and some aluminum alloy products require subsequent processing, such as wire drawing, anodizing, etc., which are particularly prone to top damage during stamping production. For scratches, pay special attention to the following points in mold manufacturing:    1. For the punching hole as far as possible without affecting the number of projects, the punching hole should be arranged behind the project punching, and even for products with a large number of punching holes, one more project can be considered. The punching holes should be lined up behind.  2. The aluminum material is soft and the mold is easy to block, so when designing the mold gap, a gap of 10% of the thickness of the bilateral material should be placed. The straight depth of the knife edge is more suitable for 2MM, and the taper is 0.8-1°. 3. When bending and forming, because the aluminum material is prone to produce aluminum chips during bending, it will cause spot damage and indentation. The aluminum raw material needs to be pasted with a PE film. In the case of rollers and electroplating, the forming block is polished and plated with hard chrome Better. 4. For stamping parts that need to be processed after anode, if there is a flattening and flattening process of 180°, the product cannot be completely pressed. Complete pressing will cause acid spitting. A 0.2-0.3MM seam is required to make the acid smooth It flows out in time, so in this process, a limit block must be made and the calibration mold is higher than the mold.  5. Because the aluminum material is brittle and easy to crack, especially in the case of reverse folds, try not to make the crimping line. Even if you do, you must make the crimping line a little wider and lighter. 6. All aluminum blades are required to be cut with a slow-moving wire to prevent burrs and irregular blanking. Aluminum parts are prone to high temperatures, so the punch hardness must be above 60°, at least with SKD11 material or above, and no D2 equal difference Qualitative punch. Aluminum material is relatively soft, so it is easy to cause top damage, crushing, scratching and deformation during stamping production. In addition to the requirements on the mold, the following points must be achieved during stamping production:    1. To stamp aluminum parts well to reduce the defect rate, the first step is to do 5S, especially cleaning, including molds, punching table, assembly line and packaging materials must be free of sharp debris, no dirt, and regular and clear rectification, and molds must be cleaned up and down. Clean up, no debris.   2. If the product has large burrs, it must be sent to the mold for repair in time and follow up to the result.  3. Aluminum parts are more prone to heat, and they become hard when they are stacked together. Therefore, when punching and cutting, it is necessary to apply a bit of pressure on the material (to 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 the 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. produce.   5. Pushing the mold and pushing block will produce aluminum chips, so the aluminum chips under the pushing block must be cleaned every day after the push block is produced. ————The article comes from the Internet. If there is any infringement, please contact to delete it.
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