Inch XCN Coating Regular Punches

Inch XCN-coated regular punches are used in close-space die sets and die/press tooling where the punch repeatedly contacts sheet or strip material and must maintain stable edge condition. The XCN-coated working surface is suited for production stamping and punching because it helps reduce wear at the tip during high-cycle forming.

• Automotive and appliance metal stamping: Select the appropriate tip geometry (X, R, K, O, H, L, J, N, V, Y, Z) to match the part profile and feeding direction while keeping the shank stable through the broad 12–250 in shank-diameter range.
• General die making for controlled part forming: Use the regular punch format with consistent engagement to improve forming repeatability, especially where die clearances are tight and access is limited.
• High-throughput punching stations: The coated face supports longer service life under repeated forming cycles, helping reduce downtime for tip wear inspections.

The provided specification set focuses on inch XCN coating and geometry options, but it does not include the underlying steel grade or explicit hardness values (HRC). For accurate material selection and heat-treatment confirmation (e.g., quenched & tempered, nitrided, or through-hardened), request the steel grade and heat-treat certification for the exact punch configuration.

• Coating performance: XCN coating is selected to improve wear resistance at the punch face during repeated forming cycles, which typically increases tip life and stabilizes dimensional control.
• Trade-offs: Coatings improve surface wear behavior, while the base steel toughness and core hardness govern resistance to chipping and edge fracture under misfeed or high load.
• What to compare if multiple material grades are offered: Compare base hardness (HRC) for wear vs. toughness, since higher hardness can increase wear resistance but may reduce impact tolerance.

To select the correct inch regular punch, match the punch shank diameter and length coding to the die insert and stripping conditions. Start with D (shank dia.) = 12–250 in, ensuring the punch fits the guide/bushing and maintains concentricity under load.

• Choose tip geometry: Select from H, J, K, L, N, O, R, V, X, Y, Z based on the part geometry and required edge penetration profile.
• Select point length via S/B/C/D/E codes: Standard S point length B & L: 150–250 (coded inch). Alternate ranges include B (150–400, 150–500, 150–600; or 175–600), C (175–600; 200–700), D (200–600; 200–700; 225–700), and E (225–700; 250–700).
• Check critical dimensions: Verify P = 0.042–1.625 in and W = 0.062–0.5 in to match the cutting edge relationship with the mating die opening.
• Tolerance/fit: Use die clearance and guide fit specifications from your tooling standard; coating and geometry affect wear rate, but fit must be dimensionally correct to prevent side loading.