Questions About Vacuum Die Casting

Ⅰ. About the vacuum die casting process

Die casting, the process of injecting molten metal into the cavity of a metal mold, holding it long enough to fully solidify, and then releasing it, has been used in a wide variety of industries, most commonly the automotive and commercial industries. The process advantages of vacuum die casting over traditional casting processes are mechanical properties, good surface finish, short cycle times, high capacity, good repeatability and dimensional stability.

Ⅱ. Questions about vacuum die casting

1. How does vacuum die casting improve weldability? Solderability is a property that is primarily unique to metals. But not all metals are created equal. Some metals are easier to weld than others. The weldability of metals mainly depends on the microstructure and mechanical properties of metals.

Vacuum die casting creates a better microstructure and improves part integrity. This improves the weldability of die castings without having to use expensive materials with higher weldability.

2. Does vacuum die casting allow heat treatment of parts? Yes, parts produced using the vacuum die casting process can be heat treated. Heat treatment is the process of changing the physical and mechanical properties of metals. Heat treatment can be used to control diffusion and cooling rates within the metal microstructure. Manufacturers can heat treat die cast parts to increase their strength, ductility, hardness, elasticity, and more. So it's a great way to get better mechanical properties using less expensive metals. The role of vacuum die casting is to improve the microstructure of the part. This makes it possible to heat treat the finished part.

3. How does vacuum die casting improve the surface finish? In the vacuum die casting process, the air and gases present in the mold cavity are removed to create a vacuum. This allows the molten metal to be evenly distributed throughout the cavity. It reduces the chance of pores forming on the surface of the casting. Therefore, your part surface will not have any defects. This also reduces the need for further surface treatment of the part. This is why vacuum die casting can produce parts with a better surface finish.

4. Can vacuum die casting improve the accuracy of castings? Yes, vacuum die casting can improve the accuracy of parts. Although the accuracy of die casting is mainly determined by the accuracy of the tooling, traditional die casting also has some limitations that do not allow certain geometric features. The die casting process gets complicated when you provide thin walls and undercuts in your design. This will result in defective and incomplete castings. Vacuum die casting allows you to include complex features in your designs. So you can get more precise parts by vacuum die casting.

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