Wholesale Metal Forming Dies Supplier & Suppliers

While high-alloy tool steels reach working hardnesses around 58–64 HRC, cemented tungsten carbide consistently maintains 85–92 HRA (equivalent to roughly 70–82 HRC) alongside an elastic modulus nearly three times that of steel (~600 GPa vs 210 GPa). This high rigidity eliminates die flex under load, suppresses micro-welding and adhesive galling, and extends die maintenance intervals from tens of thousands of cycles to millions of cycles, delivering far superior lifetime production economics.

Cracking during Electrical Discharge Machining (EDM) is typically driven by residual stresses or irregular cobalt distribution in low-grade sintered blanks. Zhongfu utilizes computerized Sinter-HIP processing followed by controlled step annealing cycles to relieve internal thermal stresses. We also offer specialized EDM-resistant carbide grades formulated with grain-growth inhibitors that stabilize the binder matrix against the thermal shock of wire cutting.

Yes. Custom carbide wear tooling and die manufacturing are our primary OEM focus. We work directly with your 2D and 3D CAD files (DXF, DWG, STEP, IGES) to supply preformed sintered blanks, ground punches, EDM ready-blocks, and fully ground die components held to tight geometric tolerances down to ±0.002 mm.

Conventional cobalt binder is ferromagnetic. For forming magnetic materials, electronics sensor components, or working in harsh galvanic and acidic chemical environments, a non-magnetic nickel-based binder matrix is recommended. Nickel-bonded carbides maintain high wear resistance, eliminate magnetic interference during precision parts ejection, and offer superior corrosion resistance.

Standard sintered die blanks and pre-pressed rods typically ship within 7 to 10 working days. Custom precision-ground components requiring custom press tooling, Sinter-HIP, and optical profile diamond finishing generally ship within 18 to 25 days. Expedited production lanes are available for urgent breakdown tooling replacements.