HRC70 Metal Ceramics Ball Nose End Mills

Coating: NO

Grain Size: Metal Ceramics

HRC: 70

Helix Angle: 40

Flutes: 2            

Application:   HRC＜70 Carbon steel, Cast Iron steel, Die steel, Alloy steel, Tool steel, Welding auxiliary steel......

Non-standard production & OEM is welcomed anytime.

Carbide Ball End Mills: The UltimateSolution for Curved Surface Machining, Creating Perfect High-Gloss Curves

In mold manufacturing, automotive bodypanels, and precision parts machining, milling complex curved surfaces hasalways been a technical challenge. Traditional flat-bottomed cutters struggleto conform to the curvature of curved surfaces, easily leaving tool marks andsteps, severely impacting product appearance and precision. Carbide ball endmills (also known as ball end mills), with their rounded cutting edge design,have become the core tool for conquering 3D curved surfaces and complexcavities, easily achieving flawless, high-gloss finishes.

The core feature of carbide ball end millsis their fully rounded cutting edge. The cutting edge forms a uniform arc fromthe tip to the edge, with the curvature precisely matching the curvature of themachined surface. Whether it's a convex surface, concave surface, or complexfree-form surface, it can achieve a continuous, smooth cutting trajectory,completely eliminating tool marks and steps found with flat-bottomed cutters.Combined with high-precision grinding technology, the cutting edge curvatureerror is controlled at the micron level, resulting in a mirror-like smoothsurface after machining, eliminating the need for subsequent polishing andsignificantly improving production efficiency and product quality.

As a specialized tool for machining curvedsurfaces, the material and performance of ball end mills directly determine themachining effect. Our carbide ball end mills utilize an ultra-fine graintungsten carbide matrix, sintered using precision powder metallurgy technology,achieving a hardness of 87-93 HRA, far exceeding that of ordinary high-speedsteel tools. Simultaneously, they are coated with a high-temperature resistantand wear-resistant AlTiN/TiAlN nano-coating, effectively reducing cutting frictionand blocking high temperatures, maintaining cutting edge stability even underhigh-speed cutting, and eliminating chipping and rolling issues.

Maximum Machining Precision for CurvedSurfaces: The high-precision circular cutting edge fit allows for surfaceroughness of Ra0.2-0.8μm, perfectly meeting the high-precision appearancerequirements of mold cavities, automotive interior parts, and 3C electroniccasings.

Double Cutting Efficiency: Thehigh-temperature resistant coating supports high-speed cutting, increasingmachining speed by 3-5 times compared to ordinary ball end mills. The machiningcycle for complex curved parts is significantly shortened, adapting to theneeds of mass production.

Extended service life: The base wearresistance is 8-12 times that of high-speed steel ball end mills. The coatinghas strong adhesion and is not easily peeled off. A single end mill cancomplete more curved surface machining tasks, significantly reducing consumablecosts.

Wide material compatibility: It can stablymachine various materials such as hardened steel, die steel, stainless steel,aluminum alloy, and titanium alloy. Whether for roughing or finishing, itmaintains stable cutting performance.

To meet the needs of curved surfacemachining under different working conditions, we have optimized the carbideball end mills in multiple dimensions, showcasing professional quality in thedetails:

Optimized helical flutes: Adopting a 45°large helix angle design, the chip removal channel is wide and smooth, allowingchips to be quickly discharged during cutting without clogging or scratchingthe curved surface. It is especially suitable for machining deep cavities andhighly curved surfaces.

Precision edge treatment: Micron-level edgegrinding + micro-passivation treatment results in a sharp and resilient cuttingedge, ensuring cutting efficiency while avoiding chipping and collapse problemson thin-walled curved surfaces and easily deformable materials.

Multi-specification coverage: Diametersrange from 0.5mm micro-diameter to 20mm large-diameter diameter; cuttinglength, number of teeth, and coating can be customized as needed; 2-flute,3-flute, and 4-flute options are also available to meet thehigh-speed/low-speed cutting needs of various materials such as aluminumalloys, steel, and stainless steel.

Upgraded vibration resistance: Optimizedtool holder diameter-to-length ratio ensures high tool holder rigidity,eliminating vibration and runout during cutting, guaranteeing surface accuracywhen machining large curvatures and long cutting edges, and preventing texturemarks.

Core application scenarios, unlocking newpossibilities for curved surface machining

Carbide ball end mills, with theirexcellent curved surface performance, have become essential tools in manyhigh-end manufacturing fields. Core application scenarios include:

Mold manufacturing: Machining curvedcavities and rounded corner transitions in plastic molds, die-casting molds,and hardware molds, achieving high surface finish, extending mold life, andreducing subsequent processing costs.

Automotive Manufacturing: Machining ofcurved surfaces for automotive interior parts (dashboards, door panels, centerconsoles), exterior panels, and new energy vehicle battery casings, meetingboth appearance and precision requirements for automotive components.

3C Electronics Industry: Machining ofcurved surfaces for mobile phone frames, laptop shells, and smart wearabledevices. Micro-diameter ball end mills can precisely complete minute arccutting, adapting to the needs of precision hardware machining.

Aerospace Industry: Machining of complexcurved surfaces for aircraft engine blades and aerospace structural components.Maintaining high precision and stability under high-temperature andhigh-strength material cutting, ensuring the quality of aerospace parts.

Choosing the Right Ball End Mill EnhancesCore Competitiveness in Curved Surface Machining. Carbide ball end mills, asthe "golden tool" for curved surface machining, have become the corechoice for curved surface machining in high-end manufacturing fields due totheir precise fit of the arc cutting edge, the durability and efficiency of thehard-core material, and the all-scenario adaptability of detailed design.Whether it's complex mold cavities or curved parts in automobiles and 3Celectronics, they can help you improve product quality, shorten processingcycles, and reduce overall costs with stable cutting performance.