Spot Welding and its Methods

Spot Welding and its Methods Points : Spot Welding, Methods of spot welding, Types of spot welding, Single Spot Welding, Multiple Spot Welding, Roll Spot Welding Spot welding coalescence is formed through the heat obtain as of resistance to flow of an electric current during the work pieces press jointly by pointed or domed electrodes. Electrodes are brought collectively and detached as of the work pieces at fixed time and rate. Also a clamping force is applied during the electrodes by various proper means.

Spot Welding Methods Spot welding methods are commonly classify in to two set. Single Spot Welding Single spot welding is a weld prepared while the current is made to flow during single one weld spot through any precise period of current application. Multiple Spot Welding Multiple spot welding two or extra spots ate prepared are similar times through the period of current flow. Multiple spot welds might be also series welds or parallel weld depending upon the particular collection spot welding is also classified in to a different class, which is described beneath. Roll Spot Welding This welding, divided spot welds are made in a row with a seam welding machine by properly adjusting the speed of circular electrodes with intrusting the current at certain internal. Electrodes are not retract through the welding process and the electrode force is not detached among the spot welds. The circular electrodes give infect the similar physical action as dome or spherical spot welding electrodes. In roll spot welding the preferred weld spacing is obtain by correct adjustment of electrode speed and current off time roll spot welds are prepared by a shorter hold time than spot welds made in the common way.