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3D Printing vs. CNC Machining： Choose the Right Technology for you project
Quick Comparison at a Glance
Metal 3D Printing: Complex, lightweight metal metal parts & part consolidation.
Polymer 3D Printing: Prototypes, complex designs & low-cost tooling.
CNC Machining: High-strength, high-precision & high-volume parts.
Direct Technology Comparison
Design freedom
3D printing:
Best of complexity. Ideal for organic shapes, internal channels, and part consolidation.
CNC Machining:
Best of simplicity. Optimal for prismatic geometries and high-precision features.
Part performance
Metal 3D Printing:
High performance, complex geometries. Near-full density, suitable for demanding applications but in complex forms.
Polymer 3D Printing:
Form over force. Best for prototypes, jigs, and non-structural parts where complexity is key over strength.
CNC Machining:
Industry standard. Produces fully dense, isotropic parts with the best mechanical properties.
Precision & Surface finish
3D Printing:
Good, but requires help. Has inherent limitations; critical features often require secondary CNC machining for precision.
CNC Machining:
The benchmark. Delivers the tightest tolerances and best surface finish, often part-ready off the machine.
Cost-Effectiveness
Metal 3D Printing:
King of value in complexity. Justified when design complexity provides performance benefits unachievable by other means.
Polymer 3D Printing:
King of prototypes and complexity. Most economical for low-volume, highly complex parts and rapid iteration.
CNC Machining:
King of volume and simplicity. Most cost-effective for medium-to-high volumes and simpler geometries.
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Foshan Jiarui Metal Technology Co., Ltd.
Email：forrest.tam@junmingcase.com
Whatsapp:8618934329483
Address: No. 36, Development Zone, Donglian Xiangnan Village, Danzao Town, Nanhai District, Foshan City, Guangdong Province, China
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