Mold makers grappling with hardened tool steels (HRC 50–62) now have a formidable ally – the 35° Helix Rounded Corner End Mill. Designed specifically for deep-cavity machining, this tool leverages advanced geometry and grinding technology to slash cycle times while extending tool life.
Core Innovations
Variable Pitch 4-Flute Design: 30°/45° alternating pitch angles eliminate chatter in long-reach applications (L/D ratios up to 10:1).
Nano-Crystalline Diamond Coating: For processing carbon-fiber-reinforced polymers (CFRP) and glass-filled plastics.
Backdraft Relief Grinding: Prevents edge chipping during reverse plunging in EDM electrode machining.
Efficiency Metrics
50% Higher Feed Rates: 0.25mm/tooth in P20 steel vs. conventional 0.15mm/tooth.
0.005mm Runout Tolerance: Achieved through 5-axis CNC grinding with laser measurement feedback.
600+ Hole Drilling: In H13 die blocks before regrinding.
Case Study: Automotive Injection Mold
A Tier-1 supplier reduced core block machining time from 18 to 9 hours using these end mills:
12mm Tool: 8,000 RPM, 2,400mm/min feed in 52 HRC steel.
Zero Tool Fractures: Over 300 cavity sets produced.
20% Energy Savings: From reduced spindle load.
Available in Metric/Imperial Sizes – the smart choice for high-mix mold production.
Post time: Apr-10-2025
