Binding Wire

Binding Wire: The soft iron wire used for binding together parts of jewelry while being soldered.
Bobbing: Sand bobbing is a process used for polishing soft metals and removing scratches, pit marks and other imperfections without dragging the metal.

binding wire
A soft iron or steel wire used to hold objects together and in place during soldering
brooch ...

I believe in the use of binding wire quite often in solderings that have to go right.

See also: Wire, Jewel, Surface, Metal, Soldering