Electronics
Precision CNC machining is central to electronics manufacturing, where tight tolerances (+/- 0.005 mm or tighter), thermal management, and electromagnetic shielding are critical requirements.
Key Electronics Applications
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Enclosures & Housings: Custom aluminum or brass chassis for RF/EMI shielding, ruggedized handheld devices, and optical assemblies.
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Heat Sinks & Cold Plates: High-aspect-ratio finned aluminum or copper blocks designed to dissipate heat from CPUs, GPUs, and power transistors.
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Connectors & Pins: Swiss lathe micro-machined pins, sockets, and coaxial connectors using high-conductivity metals.
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PCB Stiffeners & Carriers: Precision-milled frames that prevent PCB flex during assembly or high-vibration operation.
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Semiconductor Fixtures: Wafer handling chucks, test sockets, and alignment jigs requiring ultra-flat surfaces and ESD-safe plastic or ceramic materials.
Material Selection Guide
| Material Category | Common Alloys / Plastics | Key Properties & Best Uses |
| Aluminum | 6061-T6, 7075-T6, 6063 | High thermal conductivity, excellent strength-to-weight ratio, easy to anodize. Default for housings and heat sinks. |
| Copper & Brass | C110, C101 (OFC), C360 | Superior electrical/thermal conductivity. Used for busbars, contacts, liquid cold plates, and RF components. |
| Stainless Steel | 304, 316L, 17-4 PH | High corrosion resistance and structural strength for connectors, fasteners, and medical electronic bodies. |
| Engineering Plastics | PEEK, Delrin (POM), PTFE, Ultem | High dielectric strength, low outgassing, thermally stable. Used for insulators, test sockets, and circuit carriers. |
Critical Manufacturing Considerations
1. EMI / RF Shielding: Seamless mating surfaces and gasket grooves milled into housings are vital to prevent high-frequency radiation leakage.
2. Burr Control & Deburring: In high-density electronics, conductive micro-burrs can detach and cause short circuits. Micro-milling, chemical deburring, or ultrasonic cleaning are standard requirements.
3. Surface Finishes:
Type II / III Anodizing: Provides electrical insulation and corrosion protection (often masked in grounding zones).
Electroless Nickel Plating: Offers uniform conductive coating for complex interior geometry.
Alodine / Chromate Conversion: Maintains electrical conductivity while protecting aluminum from oxidation.