Problems and methods that should be paid attention to in industrial aluminum profile stamping processing
Aluminum alloy stamping because the material is relatively soft, expensive, easy to break and some aluminum alloy products also need follow-up processing, such as wire drawing, anode treatment, etc., in the stamping production is particularly prone to top injury, scratch, in the mold manufacturing should pay special attention to the following points:
. Punching should be arranged in the back engineering punching as far as possible without affecting the number of projects, even for products with a large number of punching holes, one more project can be considered, and punching holes should be arranged in the back.
, aluminum material is soft and the mold is easy to block material, so when designing the mold gap, it is appropriate to put a gap of 10% of the thickness of the bilateral material, the straight depth of the knife edge is 2MM, and the taper is 0.8-1.
3. During bending and forming, aluminum chips are easy to be generated during bending of aluminum materials, which will cause spot injuries and indentation of industrial aluminum profiles. The aluminum raw materials need to be pasted with PE film. In the case of rollers and electroplating, the forming blocks are preferably polished and hard chrome plated.
4. For stamping parts to be processed after anode, if there is a flattening and flattening process of 180 degrees, the product cannot be completely pressed together. Complete pressing will produce acid spitting. A seam of 0.2-0.3MM should be reserved so that acid can flow out smoothly and in time. Therefore, a limit block must be made in this process and the calibration die must be higher than the die.
5. Because aluminum is brittle and easy to crack, especially in the case of reverse folding, try not to press the line. Even if you do it, you should make the press line wider and shallower.
. All aluminum cutting edges are required to be cut with slow wire to prevent burrs and bad blanking. Aluminum parts are prone to high temperature. Therefore, the hardness of the punch is required to be above 60, at least SKD11 material is above, and D2 and other poor quality punches are not required.
aluminum material is soft, so it is easy to produce top injury, crush injury, scratch and deformation during stamping production. In addition to meeting the requirements on industrial aluminum profile dies, the following points should be done during stamping production:
to stamp aluminum parts well and reduce the defect rate, 5S must be done first, especially clean, including mold, punch table, assembly line and packaging materials must be free of sharp debris, no dirt regularly clear rectification, mold must be cleaned up, no debris.
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