When brazing with copper fittings, is it optional to flex the filler metal?

When brazing with copper fittings, it is essential to understand the role of the filler metal in establishing a strong bond between the two pieces being joined. The correct approach involves allowing the filler metal to flow into the joint through capillary action, which means that flexing the filler metal is not necessary for the process to be effective. Instead, it’s more about preparing the surfaces and ensuring proper heating to enable the filler to melt and adequately fill the joint.

Since flexing the filler metal is optional, it indicates that the effectiveness of the brazing process depends more on proper technique and temperature management rather than on manipulating the filler itself. It’s crucial that the surfaces to be joined are clean, and the appropriate temperature is reached to ensure that the filler metal flows correctly without the need for any physical alteration of the filler.