OEM Customized Carbide Mould Punch Pins & Rods

The detail information of product

1. Definition & Issues (The "Why")

Punch pins and rods are critical components subjected to extreme concentrated stress in cold heading, stamping, and die-casting molds. Buyers often encounter:

Sudden Fracture: Traditional steel punches often deform or snap when processing hard materials or operating at high cycling speeds.
Surface Abrasion & Material Galling: Continuous friction leads to rapid tip wear and material welding (galling) onto the punch, ruining part quality and mold efficiency.
Special Size Constraints: Standard off-the-shelf components often fail to meet the requirements of complex mold designs that demand non-standard geometries and micron tolerances.

Vina CNC eliminates these risks by utilizing HIP-Sintered Tungsten Carbide combined with micron-level CNC grinding, ensuring perpetual hardness and a mirror-finish surface to minimize frictional drag.

2. Technical Classification (The "How")

Advanced Material Grades: Utilizing fine-grain carbide grades to maximize the balance between fracture toughness and surface hardness.
Complex Geometry Engineering: Tailor-made production of flat, pointed, stepped, and profiled punch heads according to unique CAD specifications.
HIP Sintering Process: Hot Isostatic Pressing ensures a void-free internal structure, enabling the pins to withstand millions of cycles without internal fatigue.
Ultra-Precision Finishing: CNC grinding maintained at rigorous ±0.001mm tolerances with a surface roughness of Ra 0.1.

3. Technical Advantages (The "Proof")

Extended Service Life: Service life is 10 to 20 times longer than tool steel counterparts (SKD11, SKH51).
Operational Stability: Maintains sharp cutting edges and dimensional accuracy through millions of strokes, drastically reducing machine downtime.
Metrology: 100% verification of concentricity, Rockwell hardness (HRA), and microscopic grain structure analysis.