Magnesium
CNC Machining
Services On Aria
From prototypes to production runs, our advanced CNC technology machines complex magnesium parts with tolerances to ±0.005mm and superior surface finishes.
Upload 3D CAD File to Start A New CNC Machining Quote
What is Magnesium CNC Machining?
Magnesium is the lightest structural metal, offering an exceptional strength-to-weight ratio, excellent machinability, and natural vibration-damping properties.
Magnesium CNC machining is a precision manufacturing process that uses computer-controlled tools to shape lightweight, high-strength magnesium alloy parts with tight tolerances for industries like aerospace, automotive, and electronics.
Why Choose Magnesium CNC Machining?
Lightweight
35% lighter than aluminum, 75% lighter than steel.
Exceptional Machinability
Faster cutting speeds, lower tool wear vs. aluminum.
Vibration Damping
Ideal for aerospace, automotive, and electronics.
EMI Shielding
Natural protection for sensitive electronic components.
100% Recyclable
Sustainable choice for eco-conscious projects.
Types of Magnesium Alloy
Material
AZ91D
AM60B
A380
Ultimate tensile strength
230
220
315
Tensile yield strength
150
130
160
Compression yield strength (mpa)
165
130
120
Delay rate
3
8
3.5
Impact strength
2.7
3.9
3
Fatigue strength (mpa)
97
110
138
Specific heat(J/kg℃)
1050
1650
963
Thermal conductivity
72
61
96.2
Modulus of elasticity
45
45
71
Die casting temperature
630~680
630~680
640~660
Magnesium CNC Machining Parameter
Parameter
Recommended Range
Description
Spindle Speed
1,500–6,000 RPM (varies by tool & alloy)
Higher speeds for fine finishes; lower for heavy cuts.
Spindle Power
3–15 kW (depends on machine & cut depth)
Higher power for roughing; lower for finishing.
Feed Rate
500–3,000 mm/min (20–120 in/min)
Softer alloys (AZ31B) allow faster feeds than harder ones (WE43).
Cutting Depth
0.5–5 mm (0.02–0.2 in)
Deeper cuts for roughing; shallow for finishing.
Cutting Width
30–70% of tool diameter
Stepover affects surface finish and tool life.
Machining Accuracy
±0.005–0.05 mm (±0.0002–0.002 in)
Tighter tolerances require slower speeds/finishing passes.
Surface Roughness
Ra 0.8–3.2 μm (32–125 μin)
Polishing/chromate coating can improve further.
Tool Type
Carbide end mills (2–4 flutes)
Uncoated or TiAlN-coated for heat resistance.
Tool Diameter
3–20 mm (0.12–0.8 in)
Smaller tools for detail; larger for material removal.
Coolant Type
Air blast or minimal water-soluble oil
Avoid excessive coolant (magnesium is flammable).
Chip Load
0.05–0.2 mm/tooth (0.002–0.008 in)
Prevents chip buildup and overheating.
Ramp Angle
5°–15°
Reduces tool stress during plunging.
Stepover
30–60% of tool diameter
Balance between speed and surface quality.
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