F-head flare stainless steel main die

* Powder-metallurgy steel + PVD coating (TiAlN/TiN) – 3× longer wear life than conventional tool steels. * Flare cavity geometry optimized – minimizes work-hardening and stress, prevents splitting in 304/316L stainless. * Hardness/toughness balance (HRC 58–62) – withstands 200 t impact loads without chipping, maintains dimensional stability. * Mirror-finished inner surface (Ra ? 0.1 µm) – eliminates galling, ensures smooth metal flow and bright formed surfaces. * Integrated lubrication micro-grooves – reduces friction heat, lowers forming force by 8–12%, extends re-grinding intervals. * Custom relief angles & clearances – adaptable to wire Ø2.0–8.0 mm and various F-flare angles, for multiple stainless grades. * 100% in-process CMM, hardness & concentricity checks – guaranteed interchangeability with standard cold headers. * High-speed stable at 200+ spm – cuts downtime and scrap rate to <0.5% in mass production. * Optional DLC coating – boosts life 30–50% under highly abrasive conditions. * FEA-backed stress distribution – eliminates premature fracture at the flare root.