Spot Welding Machine Working Principle

The working principle of resistance welding is the generation of heat because of electric resistance.

Spot welding machine working principle.

The only difference here is that projection or embossed joints are used for the welding purpose. Working principle of electric arc welding. Today we will learn about resistance welding principle types application advantages and disadvantages. The working principle of arc winding is in a welding process the heat can be generated with an electric arc strike among the workpiece as well as an electrode.

The resistance welding such as seam spot protection works on the same principle. This is glowing electrical discharge among two electrodes throughout ionized gas. Spot welding or resistance spot welding is a type of electric resistance welding used to weld various sheet metal products through a process in which contacting metal surface points are joined by the heat obtained from resistance to electric current. This welding process could be manual fully or semi automated.

Projection welding is one of the types of resistance welding and its working principle is quite the same as the resistance welding. Resistance welding is a liquid state welding process in which the metal to metal joint created in liquid or molten state. The process uses two shaped copper alloy electrodes to concentrate welding current into a small spot and to simultaneously clamp the sheets. In this article we have studied about welding transformer working and application.

Resistance spot welding operation is used for joining the plates of railway tracks fuel tanks domestic radiators etc. In the last session we had discussed gas welding process and arc welding process and whereas in today s session we will discuss on resistance spot welding along with its definition construction working principle applications defects advantages and disadvantages. Whenever the current flows through electric resistance then heat will be generated the same working principle can be used within the electric coil. Basic idea of welding transformer a welding transformer is a step down transformer that has thin primary winding with a large number of turns and its secondary has more area of cross section and less number of turns ensuring less voltage and very high current in the secondary.

Usually spot welding as also other erw machines are automatic and work on the following weld cycle. In the projection welding as per the name different projections are formed for effective welding.