What is the process called when the end of a copper tube is expanded for brazed or soldered joint?

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Multiple Choice

What is the process called when the end of a copper tube is expanded for brazed or soldered joint?

Explanation:
Swaging is the process of enlarging the end of a copper tube so it can slip over another tube or fitting and then be joined by brazing or soldering. By expanding the end, you create a proper, snug fit that allows solder to flow and wet both surfaces, giving a strong, leak-free joint. This is different from flaring, which makes a conical flare for flare fittings, or from beading and crimping, which serve other joint types or mechanical retention rather than a brazed/soldered capillary joint.

Swaging is the process of enlarging the end of a copper tube so it can slip over another tube or fitting and then be joined by brazing or soldering. By expanding the end, you create a proper, snug fit that allows solder to flow and wet both surfaces, giving a strong, leak-free joint. This is different from flaring, which makes a conical flare for flare fittings, or from beading and crimping, which serve other joint types or mechanical retention rather than a brazed/soldered capillary joint.

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