Vacuum Brazing of PDC and Stainless Steel – Finished Product

Vacuum brazing is a critical manufacturing process used to produce high-performance PDC (Polycrystalline Diamond Compact) and stainless steel finished products, especially for cutting, drilling, and wear-resistant applications. PDC offers exceptional hardness and abrasion resistance, while stainless steel provides strength, toughness, and corrosion resistance. Vacuum brazing enables these dissimilar materials to be joined reliably without damaging the diamond structure.

The process is carried out in a high-temperature vacuum brazing furnace, where a high-vacuum environment prevents oxidation and protects the PDC from thermal degradation. An active brazing alloy, typically containing elements such as silver, copper, and titanium, is used to ensure proper bonding between the PDC and stainless steel. Brazing temperatures are carefully controlled, generally in the range of 650–850 °C, to achieve strong bonding while maintaining the integrity of the PDC.

Vacuum brazing produces clean, uniform, and void-free joints with minimal thermal stress and distortion. The finished product exhibits high bonding strength, excellent wear resistance, and long service life, even under extreme mechanical and thermal conditions. The precise and oxidation-free process also ensures consistent quality and repeatability.

Due to these advantages, vacuum brazed PDC and stainless steel finished products are widely used in oil and gas drilling tools, mining equipment, cutting tools, and advanced industrial wear components, where durability, precision, and reliability are essential.