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.

Category:

Howto & Style

Tags:

• auto body training
• auto body technology
• auto body welding
• auto welding
• collision repair training
• lincoln
• lincoln welder
• mig
• wire welding
• wire feed welding
• jessi combs lincoln
• fabrication
• auto
• body
• welding

[gunforme]

How thick is that sheet metal? It looks as thick as 16 gauge. I am currently trying this on 22 gauge which is really thin. I have to use a copper backing or it just burns holes through it. I will be doing some floor pans before spring. Chances are the floor pans will be about 18 gauge I would think so if I can do this on 22 gauge I should have less troubles on the thicker stuff.

[ButlerCollision]

@gunforme I think this was 18 gauge. I agree, thicker steel is much easier to weld. One tip for welding thin metal is to trigger it. This will help control the heat to prevent burn-through. Thanks for watching the videos. Donnie Smith

[macspud28]

I'm supprised that you are teaching people to weld without your arms being covered up. You can get serious skin danage from the sunburn effect of the UV from electric arc.

[ButlerCollision]

@macspud28 We have leather sleeves and jackets we use when we are welding. We did not want to cover the Butler shirts for the video.

[arcflash6]

Yea good penetration.... Shity bead.... Anx when you stitch weld u dont need any torch motions decent tho good job