Resistance Spot Welding Market Overview On Revolutionary Trends

Global Resistance Spot Welding Market: Overview

Resistance spot welding is a process where the surfaces of the metals are joined together by heat generated by resisting the electric current. This is a relatively old process in welding which came into existence in the 1900s. This process is adopted widely for welding purposes. The main aspects are the pressure applied to the metal surfaces, the electric current passed through the electrodes, contact resistance, the electrode material properties, the surface condition and the timing. If the current applied is more, a hole would be generated on the spot of the weld instead of the surfaces getting joined together. The voltage depends upon the resistance the metals surfaces. Even low current is not advisable as it would melt the metal surfaces due to low resistance (the resistance increases with increase in voltage) and hence optimum voltage based on metal surfaces and their resisting abilities is considered. The quality of resistance spot welding can be judged by the joint strength and the nugget size.

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Global Resistance Spot Welding Market: Drivers

The advantages of resistance spot welding are driving the growth of the market. The resistance spot welding has many benefits such as the initial cost involvement is less (except maintenance cost), distortion of parts is eliminated, resistance spot welding technology does not need skilled man power, there is uniformity in the joints made (if the ideal process conditions and method is followed), semi-automatic as well as automatic operations can be carried out, no requirement of edge preparation and the welding can be carried out in quick succession as it needs just few seconds to make the joint. The resistance spot welding is significantly important in car, railways and bus owing to its adoption to automatic operations and fast processes.