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Shenzhen Jinyihe Technology Co., Ltd.
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Metal Casting Services Custom magnesium alloy precision die casting
What Is Magnesium Die Casting?
Magnesium die casting is the manufacturing process of injecting molten magnesium into a mold to create parts. The process is similar to
casting processes, where the liquid material is poured into a cavity and takes on the shape of the desired product. The cavity itself is the
negative shape of the intended product. In magnesium die-casting, magnesium alloys are melted either in a die-casting machine or in a
separate furnace. The molten material is then poured and allowed to solidify in the mold (gravity-feed casting) or forced into the mold and
held at high pressure by a hydraulic press (pressure die casting). When sufficient time has passed for the molten material to take on the
shape of the intended product and solidify, the mold opens, and the part is removed, either automatically or manually.
Disadvantages of Die Casting Process
Magnesium Alloy Properties
| Magnesium Alloy
| Density | Yield Strength | Elongation | Elastic Modulus | Melting Temperature |
| AZ91D
| 1.81 g/cm3 | 160 MPa | 3% | 45 GPa | 875-1105 °F |
| AZ91HP
| 1.81 g/cm3 | 160 MPa | 3% | 45 GPa | 875-1105 °F |
| AM60B
| 1.80 g/cm3 | 130 MPa | 8% | 45 GPa | 1005-1140 °F |
Why choose JYH for die casting?
Die casting offers many advantages:
The main applications of magnesium die castings are described below:
| Magnesium parts can be used as connectors, housings for electronic and telecommunication equipment.
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| You can also use magnesium alloy die casting to make efficient thermal imaging camera housings.
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| Magnesium die castings are often used as body parts for cars, airplanes and even bicycles.
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| Some magnesium alloys have enhanced ductility, creep resistance, corrosion resistance and can withstand high temperatures. These properties make it ideal for engine and transmission components.
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Magnesium die castings can significantly reduce weight without affecting strength, which is a great advantage. In particular, the aerospace and automotive industries are the most widely used industries for magnesium.
Benefits of Magnesium Die Casting
Magnesium parts & components provide tighter seals for fittings
Can cut down on production costs and is extremely strong under high stress
Can withstand extreme temperatures
Easy to cast
High heat and corrosion resistance, rustproof and more premium properties
Extremely durable and long service life
Low weight and easy to take or install
Types Of Die Casting Processes
In the industrial realm, two main methods for die casting are the hot chamber and cold chamber processes.
Below, we outline the details of these two processes.
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Hot-chamber die casting
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Hot-chamber die casting utilizes a molten metal reservoir to fill intricate molds quickly, making it ideal for low-melting point alloys like zinc and tin.
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Cold Chamber Die Casting
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Cold chamber die casting is excellent for handling high melting point materials like aluminum, preventing damage to the pumping system caused by extreme temperatures. In this method, molten material is poured into a cold chamber before being injected into the die, utilizing a hydraulic system similar to hot chamber casting.
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Surface Finish
Surface finishing is crucial in die casting to enhance product aesthetics and functionality, ensuring parts meet precise specifications and
provide optimal performance.
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| Powder Coating
| Ceramic Coating
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| Anodizing
| Plating
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Die Casting Process
Whether it's hot or cold chamber die casting, the standard procedure involves injecting molten metal into a die mold using high pressure.
Here are the detailed steps in the die casting process:
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| l Clamping At the outset, clean the die to eliminate impurities and apply lubrication for smoother injection and product removal. Once cleaned and lubricated, firmly close the die with high pressure.
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| l Injection Melt the chosen metal and pour it into the shot chamber. The method differs based on the process being used. | |
| l Cooling While the die is closed, allow the metal to cool and solidify. The resulting solid material will take on the shape of the mold design.
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| l Ejection After unclamping the die mold, an ejection mechanism will push the solid casting out of the mold. Make sure the product has fully solidified before ejecting.
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| l Trimming This marks the final step, involving the removal of excess metal from the sprue and runner on the finished product. Trimming can be done using a trim die, saw |
JYH has rich experience in die casting services. Die casting is a method of forming solid metal parts and is suitable for a wide variety of industries. Die castings are valued for their precise detail, durability and consistent grade.
With more than a decade of experience, JYH has produced thousands of custom die castings for customers worldwide. Available in all types and designs, our die castings are manufactured for longevity and aesthetic value. It can resist extreme conditions and long-term wear and tear.
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