1. Definition & Issues (The "Why")

High-precision stamping dies require an ideal balance between structural hardness and surface smoothness. Buyers often face critical hurdles:

• Surface Defacing (Scratches): Improperly polished die cavities leave streaks on aluminum or stainless steel surfaces, compromising aesthetic quality.

• Material Galling: High friction causes the workpiece material to adhere to the die surface, leading to part deformation and rapid tool degradation.

• Cumulative Dimensional Errors: Inaccurately machined die components result in tolerance stack-up, making final parts unsuitable for precise assembly.

Vina CNC eliminates these risks using automated CNC polishing technology and premium tool steels (DC53, SKD11) to achieve a mirror-finish, minimizing friction and ensuring superior part integrity.

2. Technical Classification (The "How")

• CNC Polished Mold: Advanced CNC grinding and polishing to achieve surface roughness Ra < 0.2, essential for high-aesthetic aluminum parts.

• Precision Machining: Utilizing high-speed CNC milling and Sodick Wire-EDM to maintain micron-level accuracy.

• Die Materials: High-performance alloy steels hardened to 60-62 HRC via vacuum heat treatment.

• Advanced Coatings: PVD coating options (TiN, TiCN) to enhance surface hardness and lower the friction coefficient.

3. Technical Advantages (The "Proof")

• Precision: Maintaining die component tolerances strictly at ±0.002mm to ±0.005mm.

• Operational Efficiency: Significant reduction in downtime due to superior anti-galling surface properties.

• Metrology: 100% verification using 3D CMM and digital surface roughness testers.

4. Contact Information

• Company: Vina CNC Professional Services

• Hotline: +84 904609889

• Email: vinacnc.us@gmail.com

• Address: Bac Ninh, Vietnam.