Precision Machining
- CNC Machining Service
- CNC Milling
- CNC Turning
- Automatic Turning
- Machining Screw/Rivet
- Wire EDM Machining
- Casting & CNC
- Aluminum Profile & CNC
- Cold Heading & CNC
LML Metal Products Ltd.No. D309, Yunchuang E Valley, No. 3 Huanshi West Road, Tangxia Town, Dongguan City, Guangdong,China
(86) 17833674102dlynn9527@gmail.com
Materials
CNC Machining in G-10
G-10, a fiberglass-reinforced epoxy composite, delivers high mechanical strength, dimensional stability, and superior electrical insulation, making it ideal for CNC-machined critical components like electronic insulators, structural supports, and corrosion-resistant tool handles
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G-10
Designers and engineers frequently choose G-10 for CNC machining and CNC milling parts. Makes sense. This all-purpose plastic has been proven to offer:
- * Excellent machinability
- * High strength
- * Hardness
- * Heat tolerance
- * Corrosion resistance
- * Superior dielectric strength
- * Low weight
- * Low cost
- * Dimensional stability
Description
- Applications
- G-10 laminate is widely used in electrical insulators, PCB manufacturing jigs, aerospace components, marine hardware, and high-strength industrial tooling.
- Strengths
- Superior electrical insulation, Excellent strength-to-weight ratio, High dimensional stability, Chemical resistance, Flame retardant (UL94 V-0 compliant)
- Weaknesses
- Brittle fracture tendency, High tool wear during machining, Anisotropic properties (weak Z-axis), Higher cost than standard plastics, Limited high-temperature tolerance (max 130°C)
- Process compatibility
- CNC machining, Waterjet cutting, Laser cutting, Punching/die cutting
- Surface Treatment
- Sanding/polishing, Solder mask application, Conductive coatings (nickel/gold plating), Silkscreen printing
Characteristics
- Price
- $15-30/sheet (standard 1.6mm thickness) + higher machining cost (specialized tooling required)
- Lead Time
- Standard CNC: 5-10 working days, Rush service: 3-5 days (additional cost)
- Wall Thickness
- Minimum CNC machinable: 0.8mm (recommended ≥1.5mm for structural parts), Standard stock: 0.5-50mm
- Tolerances
- Standard machining: ±0.1mm, High-precision: ±0.05mm, Hole drilling: ±0.03mm
- Max part size
- Standard panel: 1000 × 1200mm, Maximum CNC bed size: 1500 × 3000mm × 100mm thickness
G-10 Processing Technologies
| Processing Technology | Process Characteristics | G-10 Type | Applications |
|---|---|---|---|
| CNC Machining | Precision milling/drilling (±0.05 mm) | Standard & G10/FR4 | Electrical insulators, brackets |
| Waterjet Cutting | Abrasive cutting (kerf 0.8-1.2 mm) | All grades | Complex shapes with no heat effect |
| Laser Processing | CO₂ laser cutting (0.1-0.3 mm precision) | Standard G10 | Precision electronics components |
| Punching/Stamping | High-speed blanking (up to 500 hits/min) | Thin sheets (0.5-3mm) | Mass production of washers/spacers |
| Thermoforming | Heating to 180-200°C for shaping | Thermoformable grades | Curved electrical enclosures |
| Surface Finishing | Grinding/polishing to Ra 0.4μm | All types | Sliding surfaces, wear plates |
Key Technical Notes:
Material Composition:G-10 consists of woven fiberglass cloth impregnated with epoxy resin.
Thermal Properties:Max continuous operating temperature 130°C (Standard), 180°C (High-Tg versions).
Cutting Tools:Use carbide or diamond-coated tools to minimize fiber breakout during machining.
Safety Precautions:Always use dust collection when machining to prevent fiberglass inhalation.
Electrical Properties:Dielectric strength >20 kV/mm at 1.6mm thickness.
Grades Comparison:
- Standard G10: TG 130-140°C
- G10/FR4 High Tg: Thermal deformation >170°C
- Fire-Retardant: UL94 V-0 rated
G-10 for Machining
G-10 epoxy laminate delivers exceptional strength-to-weight ratio and electrical insulation, making it ideal for aerospace components, electrical insulators, and marine hardware. Its UL94 V-0 flame resistance and dimensional stability withstand demanding environments, though anisotropic properties require specialized machining approaches to prevent Z-axis delamination.CNC machining G-10 demands diamond-coated tools due to rapid wear from abrasive glass fibers. Critical parameters include spindle speeds of 18,000-24,000 RPM and feed rates below 200 mm/min to achieve tight tolerances (±0.05mm). Thin-wall features (down to 0.8mm) require peck drilling and minimized cutting forces to avoid micro-fractures in this brittle composite.Standard panels (1000×1200mm) enable cost-effective production of PCB jigs and structural supports, with lead times of 5-10 days. Surface treatments like nickel plating or solder masking enhance functionality for electronic applications. Despite higher costs than metals ($15-30/sheet), G-10 remains unmatched for high-voltage insulation and corrosion-resistant tooling.GET INSTANT QUOTE
Gallery of G-10 Parts Manufactured by LML
The color of anodized finishes may exhibit some degree of variation due to standard alloy tolerance differences. Please refer to the color scheme below to observe the range of available colors.
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Read more about quality assuranceFAQs
LML takes the stress out of manufacturing by guaranteeing the quality and consistency of every part. Each order is dimensionally and visually inspected by our in-house quality control team to make sure it meets the LML Standard. If you’re not satisfied with your order, we’ll remake your parts as fast as possible, free of charge, or refund you - whichever you prefer.
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LML Metal Products Ltd.No. D309, Yunchuang E Valley, No. 3 Huanshi West Road, Tangxia Town, Dongguan City, Guangdong,China
(86) 17833674102dlynn9527@gmail.com
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