| 摘要 |
A method and apparatus for producing a finished joint between the ends of wires or rods of like material and sectional size and shape by completely upsetting joined workpieces, thereby to thoroughly remove all heat-affected metal and to effect the establishment of bonds having properties or characteristics which equal or exceed those of the parent material, and which, as completed by the method and apparatus, preserve the uniformity of size, shape and smooth finish of the wires or rods at and adjacent the joint without added manual operations, and to the extent required to avoid having the joint interfere with further operations, such as coating, twisting into cable, insulating or further drawing of the wire or rod.
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