Abstract
Resistance spot welding is a fast and inexpensive method of welding and is therefore the most
common form of welding used for automobile bodies. This method of welding, however,
requires the work pieces to be clamped between an upper and lower electrode. In addition,
since the lower electrode has to perform welding while avoiding the work pieces, it is
inevitable that a long movement time is generated for each welding point. Another
disadvantage of resistance spot welding is that the welding gun is large, which results in
higher investment and maintenance costs. As a consequence, the development of faster and
cheaper methods of welding is essential for further reducing vehicle manufacturing process
costs.
This article describes the development of a series welding method that does not use a back
electrode. This method enables high speed welding of two points simultaneously from one
side without the need for clamping the work pieces, thereby reducing manufacturing process
costs.
Keywords - Welding, electrode, series, One-Sided Welding