Which process expands a soft copper tube to relieve another tube of the same diameter?

Which process expands a soft copper tube to relieve another tube of the same diameter?

• A. Swaging
• B. Splicing
• C. Flaring
• D. Soldering

Answer: (A)

The main idea here is changing the diameter of copper tubing by deforming the metal. Swaging is the process that enlarges (or tightens) a tube by using dies or tooling to plastically deform the outer surface. When you need a soft copper tube to pass over or relieve another tube of the same diameter, swaging expands the tube slightly so it can slide over or release its grip, giving a clean slip fit without forcing it. Splicing, flaring, and soldering do not change the tube’s diameter in this way: splicing joins pieces, flaring creates a widened end for a nut or fitting, and soldering joins with solder.

The main idea here is changing the diameter of copper tubing by deforming the metal. Swaging is the process that enlarges (or tightens) a tube by using dies or tooling to plastically deform the outer surface. When you need a soft copper tube to pass over or relieve another tube of the same diameter, swaging expands the tube slightly so it can slide over or release its grip, giving a clean slip fit without forcing it. Splicing, flaring, and soldering do not change the tube’s diameter in this way: splicing joins pieces, flaring creates a widened end for a nut or fitting, and soldering joins with solder.