Precision Small-Hole Drilling in Carbon Fiber | Silt Carbon

Carbon fiber composites are prized across automotive, aerospace, medical and industrial sectors for their unmatched strength-to-weight ratio and corrosion resistance. Yet drilling sub-2 mm holes remains a costly bottleneck—tear-out, tool wear and heat-induced delamination routinely drive scrap rates above 10 % and downtime up to 20 %.

Key Challenges

• Tearing & Splitting: Poor chip evacuation and heat buildup cause edge damage and delamination.

• Tool Wear: Abrasive fibers and resin aggression shorten fine drill bit life, increasing replacements.

• Heat-Induced Damage: Cutting temperatures up to 300 °C can soften or burn resin, weakening interfaces.

• Hole Accuracy: Low-rigidity micro-tools bend under load, yielding oval or off-position holes.

Silt Carbon’s Precision Solutions

• Diamond-Coated Drill Bits: Extend tool life by 30 % and ensure consistent hole quality.

• Optimized Peck-Drilling: Controlled feed rates and dwell cycles reduce heat and improve chip flow.

• Advanced Cooling Systems: Maintain sub-100 °C cutting zones to protect resin matrices.

• Pilot-Hole & Countersinking: Pre-drilling and precision countersinks deliver ±0.05 mm tolerances.

With over 15 years of carbon fiber expertise and full in-house control, Silt Carbon’s turnkey OEM services transform drilling challenges into scalable, cost-effective production.

Discover how our high-precision drilling can lower your scrap rates and accelerate time-to-market—contact our engineering team today.