On the Study of Cold Pressure Welding

Abstract

As regards cold pressure welding, the writers carried out tests with the following results :
Figures of merit (Al to Al, 35%; Cu to Cu, 22%) were larger than F. C. Kelley's data reported in the Welding Journal, August, 1951; dissimilar metal cold pressure welding (Al to Cu, Brass to Ag, Steel, to Al) gave satisfactory bonds and cold pressure welding with inserted alloys (Al to Cu to Al, Cu to A¹ to Cu, Steel to A₁ to Steel) was also successful.
The writers developed the study on this problem to such an extent that application of this process has been widened from non-ferrous to ferrous alloys (steel to steel; figure of merit, 8%) which hitherto admitted of no hot pressure welding.
This unique process of steel cold pressure welding can be applied manually or by hand tools, only the simplest equipments and no special training being required for it.