Tuesday, 20 November 2012

Seam welding (schematic Arrangement)

SEAM WELDING
This type of resistance welding which consists in making a continuous seam of weld on two overlapping metal sheets is known as seam welding .illustrates arrangement of a seam welding .
Seam Welding ( Schematic Arrangement)

This process of welding consists in making a continuous weld on two overlapping metal sheets .Heat obtained from the resistance of the current produces the necessary fusion and joint .The current is passed through the overlapping sheets which are held togther under pressure between two circular electrode .timed pluses of currents pass through the metal as it workpieces between the electrodes to form overlapping elliptical wleds .the timing of the welds and the movement of the work cooling must be adjusted so the workpieces do not too hot. External cooling of the work is used to avoid overheating.

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