The most important aspects of die casting aluminum alloys and their production from Sandra Brown's blog

Aluminum alloy materials are soft, expensive, and easily broken, and some aluminum alloy products require subsequent processing, such as wire drawing, anodizing, and other similar procedures, which are particularly susceptible to top scratches and scratches during aluminum die-casting production. When it comes to mold manufacturing, the following factors should be taken into consideration. Point to consider: if you're going to do something, do it well.

If the number of projects is not affected, the punching holes should be arranged as far behind the project punching as possible, and even for products with a large number of punching holes, one more project may be considered, and the punching holes should be arranged behind the punching hole.

2. Because the aluminum material is soft and the mold is easily blocked, a gap of 10% of the thickness of the bilateral material should be included in the design of the mold gap. The straight depth of the knife-edge is more suitable for 2MM, while the taper is more suitable for °.

3. Because aluminum is prone to producing aluminum chips during bending and forming, it will cause spot damage and indentation when bending and forming. The aluminum raw material must be protected with polyethylene film. For rollers and electroplating, the forming block is polished and hard chrome-plated with better.

4) If a flattening and flattening process of 180° is used on die-casting parts that require post-anode processing, the product cannot be completely compressed. Complete compression will result in acid spitting, and a seam must be left to allow the acid to flow out smoothly and in a timely manner. As a result, a limit block must be created in this process, and the calibration mold must be higher than the mold.

5. Because aluminum is a brittle and easily cracked material, it is best not to crimp it, especially when folding it in the reverse direction. Even if you do, make the crimping a little wider and shallower.

6. All aluminum parts must be cut with a slow-moving thread in order to prevent burrs and irregular blanking from forming. When working with aluminum, the punch hardness must be greater than 60°, the material must be at least SKD11 or higher, and there must be no D2 difference in the Proton punch.

Because aluminum is a relatively soft material, it is easy to cause top damage, crushing, scratching, and deformation during the die-casting manufacturing process. In addition to the requirements for the mold, the following items must be completed during die-casting production:

To properly punch aluminum parts and reduce the defect rate, you must first implement 5S, particularly cleaning. This includes molds, the punching table, and the assembly line, as well as packaging materials that are free of sharp debris, dirt, and rectification. Mold must be thoroughly cleaned up and removed from the area without leaving any debris.