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Swaging forms a mechanical interlock between components by forcing zinc into a softer material, such as a rubber hose, or by forcing it around irregular features, such as the strands of a steel cable. (see below) The cast fittings are normally cold-worked by tools that simultaneously apply forces in opposite directions and eliminate the need for a backup surface. Quantitative design data have yet to be developed for this type of application. Design is usually governed by previous experience and proved by test and development.


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Rotary swaging forces the metal from the fitting around the strands of the steel cable forming a permanent connection that is stronger than the cable.

Reference 21