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Table 2 Specific welding parameters used in the experiment

From: Effects of Cover Sheets on the Nugget Growth and Fracture Behavior of Resistance Spot Welded Q&P980 Steel Joints

Welding parameter

Experimental condition

Number of welding pulses

3

Cooling time between pulses

20 ms

Welding time per pulse

120 ms

Electrode force

4.5 kN

Holding time

250 ms

Welding current

5.5 kA - expulsion (0.5 kA interval)