Pressure die casting is a kind of casting, is the molten or semi-molten state of the metal poured into the pressure chamber of the machine, under the action of high pressure, with a very high speed filling in the die casting cavity, and under high pressure to make the molten or semi-molten metal cooling solidification forming to obtain castings of high-efficiency, high efficiency precision casting method. Let's take a look at the advantages and disadvantages of it.
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Advantages of die casting
Disadvantages of die casting
There are many advantages of die casting. The first thing to say is that its production efficiency is high, and the production process is easy to realize mechanization and automation.
Generally, cold chamber casting machines average 50~90 times per hour, while hot chamber casting machines average 400~900 times per hour, high production efficiency. The second is the die-casting of high dimensional accuracy, high surface quality. This improves the utilization rate of the alloy, saving a lot of machining costs.
In addition, their mechanical properties are high. Strength and hardness are higher. Another advantage is: it can die-cast complex thin-walled parts. They can have complex parts shape, while the wall thickness of the parts can be smaller, aluminum alloy die-casting minimum wall thickness of 0. 5 mm, its minimum wall thickness can reach 0. 3 mm.
The most important point is that the casting can be embedded in the casting of other materials parts. This can save valuable materials and processing costs and can get the shape of complex parts and improve the performance of the parts, reduce the assembly workload.
There are two sides to everything. Die casting also has its disadvantages. First of all, it is easy to produce air holes. Since the molten metal fills the mold cavity at a very high rate during casting, and the mold material is not breathable, the produced by the general method is prone to pores.
At the same time, the machining allowance of the parts can not be too large, otherwise, it will remove the die casting surface hardening layer, making the surface near the pores exposed to the surface. The second is that it is not suitable for small batch production.
It has another disadvantage: die-casting high melting point alloy when the die life is low. Some metals (such as copper alloy) melting point is very high, the material resistance to thermal deformation and thermal fatigue strength requirements are very high, the die life is relatively low. At present the material is mainly aluminum alloy, zinc alloy and magnesium alloy, etc., ferrous metal rarely uses the method processing.
With the continuous improvement of domestic development level, the level of equipment and processing technology of die-casting machines is also significantly improved. It can manufacture the kinds of parts in the continuous expansion, manufacturing the quality is also becoming higher.
TEAM MFG products are tested extensively before leaving the factory to ensure quality. If you are in the die-casting business, you may consider using our cost-effective products.
