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In the high-load roughing and precision finishing of flat surfaces, square end mills (flat mills) bear the brunt of mechanical stress. However, when machining abrasive materials like graphite, high-silicon aluminum alloys, or fiber-reinforced composites (FRP), traditional carbide mills suffer rapid flank wear and bottom-edge chipping. This results in “tapered” profiles, out-of-tolerance slots, and expensive scrap.
Tiansheng Hengzuan (TSHZ) has engineered the CVD Diamond Coated Square End Mill to secure edge sharpness at the atomic level. By utilizing a $HV10,000$ diamond armor, we deliver long-term verticality and unparalleled flatness for your most demanding projects.
In slotting and shoulder milling, the verticality of the peripheral edge is vital.
The Failure: When milling graphite, tungsten carbide edges wear down almost instantly. As the tool diameter shrinks, the resulting deep slots or steps develop a tapered deviation, leading to assembly failure or loss of airtightness in molds.
During face milling or floor finishing, the bottom edge bears the primary axial cutting force.
Quality Crisis: As the tool dulls, cutting resistance spikes, leading to micro-chipping on the bottom edge. This creates “step marks” and ruins the surface roughness, making it impossible to achieve a mirror finish.
When machining “gummy” materials like aluminum or plastics, chips tend to weld themselves onto the square cutting edge.
The Failure: BUE alters the actual geometry of the tool, leading to severe surface scratches and sudden dimensional jumps during the milling cycle.
Our CVD Diamond coating is maintained at a consistent thickness of 10-15μm, with a hardness five times that of tungsten carbide.
Longevity Benchmark: In continuous graphite electrode machining, TSHZ square end mills provide a cutting length up to 15x longer than standard tools. This allows you to maintain stable slot widths for shifts at a time without needing constant tool offset compensations.
The flatness of the bottom edge dictates the surface quality of the workpiece floor.
The Advantage: Our diamond surfaces undergo ultrasonic polishing to achieve extreme smoothness. This minimizes friction, prevents the adhesion of aluminum alloys, and allows the machined surface to retain the high brightness and original luster of the metal.
Roughing with square end mills often involves interrupted cuts and high impact loads.
Reliability: TSHZ utilizes a high-toughness carbide substrate specifically for non-standard square mills. Combined with our atomic-level bonding process, the coating remains intact without peeling or edge failure under heavy-duty cycles.
Graphite Mold Roughing: Ideal for the rapid material removal and floor finishing of 3D glass hot-bending molds for smartphones.
High-Silicon Aluminum Machining: High-efficiency milling for NEV (New Energy Vehicle) motor housings or gearbox casings, effectively suppressing tool sticking.
Fiber Reinforced Plastics (FRP): Precision trimming and slotting for aerospace interior components, ensuring clean, burr-free edges.
| Specification (Dmm) | Recommended RPM | Feed Rate (mm/min) | Axial Depth (Apmm) | Radial Depth (Aemm) |
| φ1.0 | 35,000 – 45,000 | 800 – 1,200 | 0.05 – 0.10 | 0.2 – 0.4 |
| φ4.0 | 12,000 – 18,000 | 1,500 – 2,500 | 0.20 – 0.50 | 0.8 – 1.5 |
| φ10.0 | 6,000 – 10,000 | 2,500 – 4,000 | 0.50 – 1.50 |
Graphite, Ceramics, and Carbon Fiber are the future, but they are “tool killers.” If you’re still using traditional coating, you’re fighting a losing battle.
Our CVD (Chemical Vapor Deposition) Diamond Coating creates a real crystalline diamond layer on the carbide substrate. This isn’t just a “finish”—it’s a shield.
Why top distributors choose our CVD series:
1.Ultra-Low Friction: Prevents chip welding and heat buildup.
2.Extreme Abrasion Resistance: Maintains sharp cutting edges $20 \times$ longer.
3.Surface Finish: Mirror-like results on the workpiece, zero secondary polishing needed.
