Engineering industrial micro-grain cemented carbide cutting tools, unground & h5/h6 ground rods, and specialized multi-axis CNC milling cutters for high-efficiency machining across global industries.
Directly sintered and ground from certified submicron WC-Co powder. Sourced by global cutting tool manufacturers, tier-1 CNC machine shops, and distribution networks.
China accounts for over 80% of global tungsten reserves, centered primarily in Jiangxi and Hunan provinces. By establishing integrated manufacturing facilities directly at the mineral source, Jiangxi Apex Carbide eliminates intermediate supply volatility and delivers uncompromised metallurgical consistency.
We do not purchase secondary scrap or commercial blended grade powders. Our production starts from Ammonium Paratungstate (APT), synthesizing virgin tungsten carbide (WC) micro-powders with exact cobalt binder ratios (6%–12%) and proprietary grain growth inhibitors (VC, Cr3C2).
Operating low-pressure Sinter-HIP integrated furnaces at 1450°C and 100 bar inert gas pressure ensures 100% theoretical density. Residual micro-porosity is eradicated to ISO grade A00-B00 levels, directly boosting tool Transverse Rupture Strength (TRS > 4000 MPa).
Equipped with 5-axis CNC grinding centers (Rollomatic, ANCA, Walter) and German Helicheck optical measuring instruments. Every end mill maintains h5/h6 shank tolerance, edge runout under 0.003 mm, and mirror rake flutes that minimize cutting thermal friction.
Milling is transitioning from conventional shallow cuts to trochoidal roughing, dry high-speed machining (HSM), and high-feed milling (HFM) of exotic alloys. Solid end mill manufacturing must evolve beyond simple hardness toward comprehensive thermodynamic durability.
Chatter and harmonics are the primary causes of micro-chipping in deep pocket milling. Apex engineers incorporate differential flute spacing (e.g., 35°/38° unequal helix) to dynamically disrupt natural vibration frequencies, delivering superior surface finishes (Ra < 0.2 µm).
Modern tooling demands specialized micro-coatings. We apply high-aluminum TiAlN, TiSiN (nanocomposite hardness > 3800 HV, oxidation threshold up to 1100°C), and ultra-smooth Diamond-Like Carbon (DLC) for non-ferrous material anti-galling.
A razor-sharp edge without preparation often fails prematurely due to high mechanical stress. Apex implements drag finishing and brush honing to control edge radiusing (k-factor and edge hone between 5–25 µm), dramatically increasing edge longevity in hardened mold steels.
From aerospace titanium blisks to micro-electronic mold components, our solid carbide tooling lines are matched specifically to the thermal and metallurgical behaviors of the workpiece.
Milling Inconel 718, Hastelloy, and Ti-6Al-4V demands high red-hardness and thermal conductivity to extract heat away from the shear zone. Our 10%–12% cobalt submicron grades with internal coolant channels prevent built-up edge (BUE).
For pre-hardened and quench-hardened tool steels (H13, D2, NAK80, 50–68 HRC). High-rigidity ball nose and corner radius end mills with TiSiN nanocomposite coating enable direct dry finishing, eliminating EDM spark erosion steps.
Lightweighting requires aggressive, high-speed roughing of 6061/7075 aluminum alloys and cast iron engine blocks. Our 3-flute mirror-polished end mills run at cutting speeds (Vc) up to 800 m/min without aluminum welding to the flutes.
Bone plates, surgical fasteners, and dental implants made from biocompatible stainless steel (316LVM) and cobalt-chrome require micro ball-end mills down to Ø0.2 mm with defect-free cutting edges and ultra-precise radius runout.
Review our primary metallurgical grades to determine optimal balance between hardness (wear resistance) and transverse rupture strength (fracture toughness) for your workpiece application.
| Grade Designation | Cobalt Content (Co %) | Grain Size (µm) | Density (g/cm³) | Hardness (HRA / HV30) | TRS (MPa) | Recommended Machining Target |
|---|---|---|---|---|---|---|
| APX-U06 | 6.0% | 0.4 – 0.6 (Ultrafine) | 14.95 | 93.2 HRA / 1850 HV | 3800 | Graphite, non-ferrous metals, cast iron, abrasive plastics |
| APX-S10 (Universal) | 10.0% | 0.6 – 0.8 (Submicron) | 14.45 | 92.2 HRA / 1680 HV | 4200 | Carbon steel, alloy steel, tool steel ≤ 48 HRC, titanium |
| APX-N12 (Toughness) | 12.0% | 0.5 – 0.7 (Submicron) | 14.15 | 91.8 HRA / 1620 HV | 4500 | Stainless steels, interrupted cutting, high-feed milling |
| APX-H08 (High Hard) | 8.0% | 0.2 – 0.4 (Nano/Micro) | 14.65 | 94.0 HRA / 1950 HV | 4000 | Hardened mold steels up to 68 HRC, dry high-speed finishing |
We simplify international supply contracts by removing technical guesswork, ensuring complete batch reproducibility, and providing flexible supply structures.
Expand your tool brand with turn-key packaging. We offer full shank laser etching of client logos, tool codes, batch identifiers, custom-designed barcode labels, and bulk or individual plastic tube packaging.
Every shipment is accompanied by standard 3.1 chemical analysis inspection certs, density measurements, magnetic saturation (Cobalt-magnetic), coercive force (Hc), and Helicheck optical geometry logs.
Mitigate tungsten market swings. We maintain dedicated semi-finished rod and blank inventories for contract buyers, ensuring standard tool dispatches within 7 to 10 days upon release orders.
Precision-manufactured carbide cylindrical parts, coolant-fed drill rods, and extended reach profiling end mills designed for demanding production environments.
Direct answers to the common technical and commercial queries raised by machining directors, CNC supply distributors, and global procurement specialists.
For standard catalog solid carbide rods and end mills, our MOQ starts from just 1 piece, allowing tooling engineers to validate geometry, runout, and tool life. For drawing-based OEM custom step tools, custom coatings, or non-standard preformed blanks, our initial trial batch MOQ is typically 5 to 10 pieces.
Traditional vacuum sintering leaves microscopic voids and pores that serve as crack propagation initiation points under cyclic milling stress. Our Sinter-HIP technology applies up to 100 bar of argon pressure at peak temperature, forcing cobalt to wet all WC crystal boundaries and eliminating residual voids, resulting in maximum transverse rupture strength.
Yes. Our engineering division operates specialized CAD/CAM programming workstations interfaced with 5-axis Walter and ANCA grinders. We review your part drawings, propose optimal helix angles, core thickness, and edge preps, and manufacture direct-to-spec custom tooling.
Our centerless grinding lines routinely deliver h6 and h5 outer diameter (OD) tolerances (down to -0.005 mm / +0 mm). Radial total runout is held strictly within ≤ 0.003 mm across the working length, ensuring immediate readiness for tool grinding without additional shank preparation.
We provide industrial PVD coatings including AlTiN/TiAlN for standard steel milling, TiSiN nanocomposite coatings for high-temperature hard milling up to 68 HRC, multi-colored or DLC (Diamond-Like Carbon) coatings for aluminum mirror finish, and AlCrN coatings for heat-resistant superalloys.
Standard in-stock carbide rods and end mills ship within 24 to 48 hours. Batch production orders for ground rods, coated end mills, and custom-formed blanks require 7 to 25 calendar days depending on batch scale, supported by direct air express (DHL/FedEx/UPS) or ocean shipping.