As a graphite machining engineer, you know the pain: high temperatures during milling cause surface roughness, tool chipping, and burrs — all leading to scrapped parts and downtime. The good news? Wet coolant systems aren’t just an option — they’re essential for consistent, high-quality results.
Graphite’s low thermal conductivity makes it prone to localized overheating. In one real-world case study from a battery electrode manufacturer in Germany, uncontrolled heat caused average tool life to drop from 45 minutes to just 18 minutes per setup — resulting in a 37% yield loss. When you add wet coolant with proper flow rate (≥ 30 L/min) and pressure (2–4 bar), those numbers flip: tool life increases by up to 60%, and surface finish improves significantly.
| Condition | Avg. Tool Life | Surface Roughness (Ra) | Yield Rate |
|---|---|---|---|
| Dry Milling | 18 min | 12 μm | 63% |
| Wet Coolant System | 29 min | 4 μm | 89% |
Pro Tip: Pair your wet system with PCD (polycrystalline diamond) tools — they maintain sharpness longer under heat stress. One client in Singapore reported reducing rework by 42% after switching to this combo.
“The difference wasn’t just in quality — it was in confidence. Now we can run overnight shifts without worrying about tool failure.” — Dr. Lin Wei, Senior Process Engineer at Zhejiang BatteryTech
To get the most out of your wet coolant system:
If you're working in electronics or EV battery manufacturing, consider a machine like the DC6060G — featuring integrated wet coolant delivery and full-seal design. It doesn't just cool better; it protects sensitive components from contamination. That means fewer rejects, less cleaning time, and more uptime.
