1. Definition & Issues (The "Why")

Cold Heading Molds are the core components in the mass production of bolts, screws, and structural fasteners. Utilizing low-quality molds leads to critical operational failures:

• Low Fatigue Resistance: Molds crack under extreme heading pressure, causing catastrophic downtime and potential machine damage.

• Dimensional Instability: Rapid wear of the die cavity leads to inconsistent part diameters, resulting in high scrap rates and QC failures.

• Poor Surface Integrity: Improperly finished dies create surface scoring on fasteners, diminishing the aesthetic and functional quality of the product.

Vina CNC partners with industry-leading manufacturers to provide molds featuring Ultra-Fine Micro-grain Carbide, ensuring maximum rigidity and flawless surface finishes for high-speed headers.

2. Technical Classification (The "How")

• Complete Punch Sets: First and second punches engineered for optimal metal flow and grain structure.

• High-Density Main Dies: Premium Tungsten Carbide cores (HRA 88-92) for extreme wear resistance.

• Precision Trimming Dies: Sharp-edged hexagonal and torx dies designed for high-fatigue life.

• Material Integrity: Advanced vacuum heat treatment to eliminate internal stresses and prevent brittle fracture.

3. Technical Advantages (The "Proof")

• Extended Service Life: Proven performance across multi-million cycle high-speed operations.

• Micron-Level Precision: Cavity tolerances strictly maintained at ±0.005mm.

• Metrology: 100% material verification via spectroscopy and dimensional check with 3D CMM.

4. Contact Information

• Company: Vina CNC Professional Services

• Hotline: +84 904609889

• Email: vinacnc.us@gmail.com

• Address: Bac Ninh, Vietnam.