UEX 2 Flutes Ball Nose End Mill For Mold Steel Up To HRC60

Technical notes

• The UEX series ball nose end mill is specially designed for precision machining of mold steel up to HRC60. It is especially suitable for mold cavities, complex curved surfaces, and semi-finishing to finishing applications where surface consistency and tool stability are critical.
• With ultra-fine carbide substrate, advanced TIALSIN coating, and optimized anti-vibration geometry, this tool helps achieve stable cutting, smooth contour transitions, and reliable surface finish in mold steel machining.
• Compared with square end mills and corner radius end mills, the ball nose geometry is better suited for 3D contour milling, radius transition machining, and cavity finishing where smooth cutting paths and better surface blending are required.
• 1. Ultra-Fine Grain Carbide Substrate
• UEX ball nose end mills are manufactured using ultra-fine grain powder carbide with grain size below 0.6 μm , combined with 12% cobalt content .
• This material structure provides high hardness while maintaining sufficient toughness, reducing the risk of edge chipping during complex machining paths.
• 2. HiPIMS TIALSIN Coating
• The cutting edges are coated with HiPIMS-applied TIALSIN coating , offering oxidation resistance and thermal stability at temperatures up to 1200°C .
• The dense coating structure improves adhesion strength, lowers friction, and enhances resistance to crack propagation under high cutting loads.
• 3. Tool Geometry & Design
• UEX ball nose end mills feature a geometry optimized for vibration control and surface consistency:
• • Unequal end teeth angle: 88° / 92°
• • Variable helix angle: 35° / 37°
• • Rake angle: 0° to -5°
• This design effectively reduces harmonic vibration during 3D contouring and finishing, resulting in smoother cutting action and improved surface quality on mold steel components.
• 4. Machining Applications & Industries
• Typical Industries
• • Mold & die manufacturing
• • Automotive mold components
• • Plastic injection molds
• • Die casting molds
• • Precision tooling industry
• Typical Machining Operations
• • 3D contour milling
• • Mold cavity finishing
• • Semi-finishing and finishing
• • Complex curved surface machining
• UEX ball nose end mills are suitable for materials up to HRC60 , including:
• • H13 mold steel
• • SKD61 tool steel
• • CPM powder metallurgy steel
• • 718H pre-hardened steel
• This makes the UEX series a reliable choice for mold shops handling high-hardness and high-value components.