The research presented in the article involved the analysis of various factors, including 1) type, length and the cross-section of the supply conduit, 2) synchronous/asynchronous operation of welding machines and 3) temperature of the conduit on supply voltage drop in resistance welding machines. The article discusses the unfavourable effect of the above-named voltage drop on the quality of welds, including a decrease in the weld nugget diameter and the reduction of weld strength.

doi: 10.17729/ebis.2019.5/7