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The Iron Age 1888-07-12: Vol 42

1888 Reed Business Information US

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‘THE Electric Welding Machines. THURSDAY, JULY 12, 1888, IRON AGE Lynn, Mass. In view of the interest at- tached to the subject we need not specially commend to the at- tion of our readers the engravings on this page, illustrating two types of machines by means of which their welding is accom- plished. The principle in- volved in this new art is that of causing currents of electricity to pass through the abutting ends of the pieces of metal which are to be welded, thereby generating heat at the point of contact, which also becomes the point of greatest resistance, while at the same time mechanical pres- sure is applied to force the parts together. As the currents heat the metal, at their junction, to the weld- ing temperature, the pressure follows up the softening surface until a complete union or weld is effected, and, as the heat is first developed in tie interior of the parts to be welded, the in- terior of the joint is, it is claimed, as efti- ciently united as the visible exterior. With such a method and apparatus, it is found possible to accom- plish not only the common kinds of welding of iron and steel, but of metals which have hereto- fore resisted attempts at welding, and…

Citation

The Iron Age 1888-07-12: Vol 42. Reed Business Information US. 1888.