Let's look at some different wire feed welding processes

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The machine used in this video:
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0:00 Intro
0:10 Wire Feed Welding
0:54 Short Circuit MIG Welding (GMAW-S)
2:37 Spray Transfer MIG (GMAW)
4:04 Pulsed MIG Welding
5:26 Self Shielded Flux Cored Arc Welding
7:35 Gas Shielded Flux Cored Arc Welding