Magnesium CNC Machining Services
Get high-quality CNC machined magnesium parts from a reliable China supplier. Custom designs, low-volume production, and mass manufacturing with tight tolerances.
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Certifications
ISO 9001:2015 | ISO 13485：2016 | IATF16949
Custom CNC Machined Magnesium Parts - China Manufacturer
BOYI provide custom CNC machined magnesium parts with high precision and durability. As a leading China supplier, we offer OEM & ODM services, rapid prototyping, and bulk production. With advanced 5-axis CNC milling, turning, and drilling, we efficiently manufacture complex magnesium components for industries like aerospace, automotive, medical, and electronics.
CNC Machining Capability in Magnesium Materials
Magnesium is a lightweight, strong metal with excellent machinability, making it ideal for CNC machining. Our CNC machining capabilities ensure precise fabrication of magnesium parts with exceptional accuracy and surface finish, making it a top choice for high-performance applications.
| Standards | Detail |
|---|---|
|
Tolerances |
+/- 0.01 mm |
|
Maximum Part Size |
4000 mm×1500 mm×600 mm |
|
Minimum Feature Size |
Φ 0.50 mm |
|
Wall Thickness |
0.8 mm |
|
Standard Lead Time |
3 business days |
|
Price |
$ $ $ |
|
Available PET at BOYI |
Magnesium Alloy AZ31B, AZ91D, WE43 |
Magnesium Alloy AZ31B
Magnesium Alloy AZ31B is a popular magnesium alloy known for its excellent combination of lightweight, strength, and good machinability. It is composed primarily of magnesium, with aluminum (Al) and zinc (Zn) as the main alloying elements. The “AZ” designation refers to the alloy’s composition, with the number “31” indicating the approximate percentage of aluminum (3%) and zinc (1%) in the alloy.
| Tensile Strength | Yield Strength | Elongation at Break | Hardness | Thermal Conductivity | Density | Modulus of Elasticity |
|---|---|---|---|---|---|---|
|
230-270 MPa |
150-180 MPa |
10-15% |
60-80 HB |
156 W/m·K |
1.78 g/cm³ |
45-50 GPa |
Magnesium Alloy AZ91D
Magnesium Alloy AZ91D is another widely used magnesium alloy, offering a slightly different composition and set of properties compared to AZ31B. It is composed primarily of magnesium, with aluminum (Al) and zinc (Zn) as the primary alloying elements. Specifically, AZ91D contains approximately 9% aluminum and 1% zinc.
| Tensile Strength | Yield Strength | Elongation at Break | Hardness | Thermal Conductivity | Density | Modulus of Elasticity |
|---|---|---|---|---|---|---|
|
230-290 MPa |
150-180 MPa |
3-8% |
60-70 HB |
130-150 W/m·K |
1.81 g/cm³ |
45-50 GPa |
Magnesium Alloy WE43
Magnesium Alloy WE43 is a high-performance alloy that contains rare earth elements, including ytterbium (Y), neodymium (Nd), and zirconium (Zr), along with aluminum and zinc. WE43 is commonly used in aerospace, military, and automotive industries, particularly in parts that need to withstand high temperatures and aggressive environments while maintaining light weight.
| Tensile Strength | Yield Strength | Elongation at Break | Hardness | Thermal Conductivity | Density | Modulus of Elasticity |
|---|---|---|---|---|---|---|
|
250 MPa |
220-250 Mpa |
2% |
70-90 HB |
120-140 W/m·K |
1.81 g/cm³ |
42-46 GPa |
Surface Finishing Options for Magnesium Parts
Magnesium alloys, due to their high reactivity, require careful attention to surface finishing to enhance their performance, appearance, and durability.
The polished finish offers a high gloss, smooth surface with Ra 0.8μm (Ra 32μin) roughness, ideal for mirror-like applications.
Bead Blasting
Magnesium parts surface is left with a smooth, matte appearance, with no thickness removal specified.
Black Oxide
Black oxide is a corrosion-resistant treatment for magnesium, providing a matte black finish, mild rust protection, and improved wear resistance.
Powder Coating
Applicable to magnesium parts, offering matte, gloss, or textured finishes with customizable colors. Thickness removed ranges from 0.05mm to 0.15mm.
As Machined
This finish retains visible tool marks and is suitable for both magnesium parts. There is no specific thickness removed in this finish.
Brushing
Brushing produces a satin texture on parts, offering a smooth, uniform finish while concealing minor flaws.
Chromate Conversion Coating
This finish can appear smooth or matte, often with a clear or slight yellow tint. A very thin layer (0.25–1 micrometer) is removed.
Painting
Available for magnesium parts, this finish can be matte, gloss, or textured, with color matching possible.
Why Choose BOYI for Magnesium CNC Machining?
BOYI excels in magnesium CNC machining with advanced equipment and expert handling of magnesium’s unique properties. We deliver high-quality, precise parts tailored to your needs, backed by strict quality control and fast turnaround times.
- Save 30-50% with efficient production.
- Quality Assurance: ISO 9001:2015 certified with SGS and RoHS.
- On-Demand Production: From 1 to 10k+ pieces.
- 50+ materials available.
CNC Machined Magnesium Applications
Some common applications include:
- Aerospace: Structural components, engine parts, housing
- Automotive: Engine components, transmission parts, chassis
- Electronics: Mobile phone cases, laptop casings
- Medical Devices: Surgical tools, implants
- Sports Equipment: Bicycle frames, golf club heads
- Military: Vehicle parts, weapon systems components
Pros and Cons of Magnesium CNC Machining
Pros of Magnesium CNC Machining:
- Lightweight and strong
- High strength-to-weight ratio
- Easy to machine
- Good vibration damping
- Corrosion-resistant with coatings
Cons of Magnesium CNC Machining:
- Highly flammable (requires safety precautions)
- Prone to surface damage
- Higher cost compared to aluminum and steel
- Limited alloy availability
- Requires specialized tools and techniques
