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How To Lap Weld On Auto Body Sheet Metal - (Auto Body Welding) Technology Program

http://bit.ly/autowelding ABRN and Butler Community College have partnered together to bring you the ABRN HOW2 tips. In this auto body training student led video Kevin and Todd, BCC students, demonstrate auto body welding on how to perform a stitch weld and triggering technique. This technique is used to prevent the metal from overheating, which is a concern in the automotive industry. Overheating can result in warping or weakening certain types of metal. Stitch welding allows the technician to weld a 1/2 to 3/4 weld in one area, then move to another area to weld while the previous weld cools. Triggering allow the technician to get proper penetration without overheating the metal. The students practice these weld on metal coupons as shown in the video. Then the welds are destructive tested to determine if metal is properly welded.
Length: 03:14

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