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
- Incompatible with metals boasting elevated melting points
- Incompatible with extensive sheet metal components
- Substantial die expenses
- Extended lead times
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?
- Complex Geometries & Tight Tolerances: We excel in intricate shapes, undercuts, and high-precision
features across a wide range of applications.
- High-Volume Efficiency: Rapid cycle times, long-lasting dies, and streamlined production
make die casting ideal for aerospace, automotive, electronics, and
consumer products.
- Performance-Driven Solutions: Our die-cast components are engineered for strength, durability,
heat resistance, and performance in critical sectors like defense,
robotics, and energy.
- Cost-Effective Manufacturing Reduced labor input over machining, repeatable quality, and
efficient processes lower your cost per part.
Die casting offers many advantages:
- Accuracy:Die casting offers tight tolerances, around ±0.05mm. Post-machining
might be required for functional surfaces.
- Complex shapes:Die casting provides complex shapes within closer tolerances than
many othermass production processes.
- Rapid fabrication process:The fabrication process time is cut short due to the simplicity of
the process.
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.
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:
| 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. |
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. |
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. |
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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Custom High Tolerance Die Casting Service For The Metal To Shape
Intricate Conponents. We are your best partner!
