PCD (Polycrystalline Diamond) countersink drills, widely used in aerospace carbon fiber composites, are now transforming battery housing production for new energy vehicles. As lightweighting demands grow, their extreme hardness, wear resistance, and long lifespan make them ideal for machining aluminum alloy/composite laminated structures.
Core Advantages Driving Adoption:
30+% Higher Efficiency
Unique cutting-edge geometry prevents material adhesion and eliminates burrs/delamination common with traditional tools.
8-12x Longer Tool Life
Superior wear resistance reduces part-per-cost for high-volume production.
Proven Industry Application
Deployed at leading EV/battery manufacturers for scalable, cost-effective solutions.
3 Critical Applications in EV Battery Production
●High-Silicon Aluminum Alloy Machining
▷Solution: Countersink drill using a gradient PCD composite (diamond content 88%-92%)
▷Performance:
Cutting speed: 300 m/min on AlSi12 die-castings
Tool life: 8-12x longer vs. carbide
▷Case Study:
Integrated drilling-countersinking tool reduced tray processing time to 3.2 minutes per piece at a top battery manufacturer.
●Delamination-Free CFRP Machining
▷Solution: A suitable negative rake cutting edge design, combined with 5MPa high-pressure internal cooling
▷Results:
Max layer separation: <0.2mm on T800 CFRP
Hole accuracy: ±0.03mm (e.g., 4680 battery boxes)
●Multi-Function Tool Innovation
▷PCD Drill-Reamer-Countersink Combos enable single-pass drilling, countersinking, and chamfering.
▷Benefits:
70% less tool-change time
30% improved chip evacuation (anti-adhesion design)
Mirror-finished substrate reduces cutting resistance
Material-Specific Solutions
