AZ31B Magnesium CNC Machining & Manufacturing
AZ31B is the industry standard for applications requiring high strength-to-weight ratios. As a lightweight alternative to aluminum, it delivers significant mass reduction for robotics, aerospace, and portable industrial equipment.
Machining AZ31B demands specialized operational protocols—especially chip management and fire safety—that standard machine shops often overlook. BGCNC provides managed manufacturing for AZ31B components, coordinating the entire supply chain from raw material procurement to specialized surface finishing.
- Weight Reduction
- 0%
- vs. Aluminum 6061
- Same structural integrity
- Supply Chain
- Single point of contact
Why AZ31B for High-Performance Hardware
AZ31B is favored for its excellent vibration damping, electromagnetic shielding, and superior machinability compared to other magnesium alloys. In product design, shifting from aluminum 6061 to AZ31B can reduce component weight by approximately 35% without sacrificing structural integrity.
High Strength-to-Weight Ratio
Ideal for mobile robotics and drone frames, where every gram affects payload and battery life.
Vibration Damping
Superior performance in high-speed automation equipment, reducing resonance and mechanical noise.
EMI Shielding
Natural attenuation properties for sensitive electronic enclosures and instrument housings.
Precision CNC Machining Protocols
Processing magnesium is not the same as milling standard aluminum. At BGCNC, our partner facilities adhere to strict safety and quality standards to ensure part integrity and facility safety.
Every project is routed to a facility equipped and audited specifically for magnesium work—not a general aluminum shop.
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Chip Management
Magnesium chips are highly flammable. Our partners use dedicated collection systems, ensure machines are cleared of steel or aluminum dust, and utilize specialized non-water-based coolants to prevent thermal runaway.
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Tooling Optimization
We utilize sharp, high-rake-angle tooling to minimize heat generation during the cutting process. This reduces the risk of part distortion and surface micro-cracking.
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Dimensional Stability
Given the thermal conductivity of AZ31B, our engineers account for work-holding pressure to prevent deformation in thin-walled sections.
Specialized Surface Finishing & Corrosion Protection
The primary drawback of AZ31B is its susceptibility to oxidation and galvanic corrosion. A raw magnesium part will degrade quickly in most environments. Our supply chain includes certified partners capable of applying the necessary protective layers to ensure long-term durability.
Chemical Conversion Coating
Chromate / Non-Chromate
Essential for providing a base for paint adhesion and initial corrosion resistance.
Anodizing
Magnesium-Specific
Specialized magnesium anodizing provides a hard, ceramic-like surface that significantly improves wear resistance and environmental durability.
Powder Coating & Painting
Final Sealing
Final sealing layers that provide the aesthetic finish and the primary barrier against moisture.
Engineering Support: Beyond the Drawing
Choosing the right material is only half the battle. Our engineering team reviews your CAD files to determine if AZ31B is the optimal choice for your specific application.
We analyze wall thickness, tolerances, and secondary operations before production begins—so lightweighting goals are met without compromising manufacturability.
Wall Thickness
Ensuring structural rigidity while leveraging magnesium's lightweight properties.
Tolerances
Accounting for the material's thermal expansion coefficients during high-precision machining.
Secondary Operations
Evaluating if inserts or bushings are required, as magnesium threads can be prone to stripping if not designed with adequate depth and reinforcement.
Managed Supply Chain for Low-to-Medium Volume
Managing a magnesium project across multiple suppliers is complex. BGCNC acts as your single point of contact in China, handling coordination between raw material suppliers, CNC shops with magnesium-specific safety protocols, and certified finishing houses.
Supplier Auditing
Verifying that the selected facility has dedicated equipment for magnesium processing.
Quality Inspection
Performing in-process checks to ensure surface finish requirements are met before the corrosion-sensitive parts are shipped.
Logistics Coordination
Ensuring proper packaging to prevent moisture exposure during transit.
Project Readiness Requirements
To provide an accurate quote for your AZ31B components, please submit your technical documentation.
Send Your Drawings- 3D CAD Files
- STEP or IGES formats.
- 2D Technical Drawings
- Specifying critical tolerances, surface finish requirements, and designated areas for masking during finishing.
- Volume & Lifecycle
- Expected annual quantities to determine the most cost-effective production batch size.
- Application Environment
- Details on the final operating environment to help us select the correct corrosion protection system.
Get Started with Your Project
If you are designing high-performance hardware and require a partner who understands the nuances of AZ31B magnesium, BGCNC is ready to assist. Contact our engineering team to discuss your project requirements.
- Email: info@bgcnc.com
- Location: Hongrongyuan · Honghu-Technologiepark, Bezirk Longhua, Shenzhen, China
Send us your drawings today for a DFM (Design for Manufacturing) review and a comprehensive project quotation.