Custom Magnesium CNC Machining Services
Weldo machining lightweight magnesium alloy parts with high specific strength, good heat dissipation, vibration absorption and electromagnetic shielding for electronics, automotive, aerospace and precision structural applications.
Why Choose Magnesium Alloys?
Magnesium combines low weight with practical strength, thermal performance and vibration control. Correct alloy selection and surface protection are essential.
Core Advantages
- Ultra-light 1.74 g/cm³ density
- Good heat dissipation and vibration absorption
- Strong electromagnetic shielding
- Over 95% recyclable; chips can be reused
Design Considerations
- Lower high-temperature resistance than some metals
- Wear resistance depends on alloy and application
- Surface treatment improves corrosion protection
- Chip, dust and heat control are vital during machining
Common Applications
- 3C electronics housings and support frames
- Automotive lightweight structures and mechanisms
- Aerospace arms, structures and aircraft doors
- Medical devices and lightweight sports equipment
Common Magnesium Types for CNC Machining
Select an alloy according to weight, strength, corrosion exposure, forming requirements and operating temperature.
AZ91D
StrengthAbout 9% aluminum, with strong hardness and relatively low cost. Published Knoop hardness: HK 76.2.
AZ31
FormabilityAbout 3% aluminum and good plasticity, with lower strength and hardness than AZ91D. Published HK 51.1.
ZK60
Load BearingA high-strength, wear-resistant option for load-bearing structures; its relative brittleness makes machining harder.
Mg-Mn
CorrosionOffers good corrosion resistance for chemical equipment and parts exposed to humid environments.
Mg-RE
High TemperatureRare-earth-containing alloys with more stable high-temperature performance for engine components.
Mg-Li
Lowest DensityAn extremely low-density metallic structural material for demanding lightweight applications.
Magnesium CNC Machining Parts
Examples from the original page show precision components, thermal structures, turbine forms and multi-axis machining capability.
Surface Finishes for Magnesium Parts
Based on Weldo's published CNC machining experience, these processes improve corrosion resistance, wear behavior, appearance or coating adhesion.
Corrosion Protection
Chemical conversion coating, anodizing and Alodine improve protection and coating adhesion.
Surface Texture
Polishing, sand blasting and brushing adjust roughness, reflectivity and visual texture.
Protective Coatings
Powder coating and electroplating add dense protective or functional surface layers.
Process Enhancement
Black oxide and heat treatment are selected where the alloy and performance target permit.
Why Work With Weldo ?
Multi-axis machining, DFM support and coordinated inspection help move magnesium projects from sample approval to repeat production.
Multi-axis capacity supports consistency in volume production.
Structural feedback helps reduce cost and improve machining efficiency.
CMM and related systems support dimensional verification.
Samples from 1 day; production commonly ships in 3–15 days.
Frequently Asked Questions
Concise guidance based on the original page’s machining, finishing and safety notes.
Which tools and cutting parameters suit magnesium alloys?
Fine- or ultra-fine-grain carbide tools are common; diamond-coated tools suit volume work. The original guidance favors rake and clearance angles above 10°, cutting speed above 300 m/min and feed above 0.1 mm/tooth, while preventing local heat buildup.
Which surface treatments are commonly used after machining?
Options include chemical conversion, anodizing, micro-arc oxidation and properly pretreated Ni/Cu/Cr electroplating. Selection depends on corrosion, wear, appearance and service conditions.
Does magnesium CNC machining involve safety risks?
Yes. Fine chips and dust can ignite near 500°C. Use appropriate wet cutting, fire suppression and dust collection; clean chips regularly and never blow them around with compressed air.
Send Your Magnesium Part Drawing for Review
Upload the drawing, material preference, quantity and surface requirement. Weldo can review manufacturability before quoting.
- STEP
- STP
- IGES
- STL
- DWG
- DXF
One project file is enough to begin the review.