Diffusion bonding is a welding technique that uses heat and pressure to join two or more pieces of metal without any additional material.
Diffusion-bonded heat exchangers from AIC stand out with the ability to operate at extremely high pressure while maintaining a compact design. DBHE heat exchangers are six times smaller than traditional shell-and-tube devices designed to work within the same parameters.
The metal surfaces to be bonded are cleaned to remove any contaminants that could interfere with the bonding process.
The metal surfaces are placed in a clamping fixture, which holds them in place during the bonding process.
The metal surfaces are heated to a temperature that is high enough to allow the atoms to migrate and intermix.
Pressure is applied to the metal surfaces to help bring them into close contact and facilitate the bonding process.
The metal surfaces are allowed to cool to solidify the bond.
Diffusion bonding produces a high-strength bond between the metal components, making it suitable for applications that require a strong, durable connection.
The bonding process does not require the use of a brazing alloy or other external filler material, which can reduce the weight of the final product.
Diffusion bonding eliminates any porosity that may be present in the metal components, which can affect the strength and reliability of the bond.
The bonding process does not introduce any contaminants into the metal components, which can help to preserve the integrity of the material.
High pressure and uniform heating used in the diffusion bonding process result in a bond with minimal stress concentrations, which can improve the overall reliability and performance of the final product.
Diffusion bonding can be used to join a wide range of metal alloys, including dissimilar materials such as aluminum and steel.