Abstract
Users OF resistance welding equipment are finding “presswelding” to be ideally suited to many of their high-production applications. In its general concept, presswelding may be likened to present-day stamping-press practice; however, instead of forming or trimming, the weld press produces from 16 to 160 spot welds practically simultaneously on a given assembly. The welding press also differs from the usual stamping press in that the ram or movable platen is generally located in the lower part of the machine. This arrangement facilitates the location of the welding units and usually favors loading of the parts to be welded. Figure 1 shows three typical press types. The 4-post machine is used for large assemblies while the 2-post or open press is used for smaller operations.
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