Is it possible to re-braze a joint? If so, how?

Re-brazing a joint is indeed possible, and the correct approach involves cleaning the joint and reapplying the filler metal. This process is necessary to ensure a strong connection, as any contaminants from the initial brazing can compromise the quality of the re-brazed joint.

When a brazed joint needs to be repaired or modified, thorough cleaning must be undertaken to remove any residual flux, oxides, or contaminants. This prepares the surface for the new application of filler metal, allowing for proper adhesion and structural integrity. Ensuring that the surfaces are clean and free of oxidation is crucial for the success of the re-brazing.

This method allows for corrections, adjustments, or enhancements to be made to the original joint without completely dismantling the assembly, thus offering a practical solution for maintenance or modification of brazed components.

Other options fail to recognize the possibility of re-brazing or the necessary procedures involved, which is why they are not suitable choices in this context.