Video: Basics of Welding Machinery

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Learn the basics of welding from an expert in arc, tig and mig welding in this free DIY video.

Comments

Ashfaq Mar 12, 2011
goood i like it
jankenb2 Mar 23, 2009
Mac, I work as a curriculum writer for a large metropolitan community college and am currently collaborating with our vocational program instructors writing adaptive programs for students interested in welding. Your video's are excellent. My students have found them interesting, on target and the perfect length. I want to thank you for producing these very helpful and informative welding videos. The safety videos are particularly good as they highlight the need for safety in the weld shop and how it is the responsibility of the welder for protecting his as well as others from injury. Again...wonderful. JGA
jankenb2 Mar 23, 2009
Mac, I work as a curriculum writer for a large metropolitan community college and am currently collaborating with our vocational program instructors writing adaptive programs for students interested in welding. Your video's are excellent. My students have found them interesting, on target and the perfect length. I want to thank you for producing these very helpful and informative welding videos. The safety videos are particularly good as they highlight the need for safety in the weld shop and how it is the responsibility of the welder for protecting his as well as others from injury. Again...wonderful. JGA
btel Aug 02, 2008
i m very interest for this vidio
mikep4 Aug 02, 2008
thanks

Video Transcript

I am here to discuss the arc welding process called MIG welding. MIG is a short form that stands for Metal Inert Gas welding, it is a very popular, easy to use arc welding process. It consists of a very high strength steel wire coiled in a roll, a set of drive rollers, a power supply, a MIG gun and a supply of inert gas to shield the weld pool. It is very versatile, the wires come in a wide variety of metals for different users. You can get ordinary carbon steel wire, even though this looks like copper wire, it is actually carbon steel wire covered with copper, a thin layer copper tip to aid in the welding process. It helps the electricity to get on to the wire, as it goes to the contact tip. You can get stainless wires, you can get nickel wires, you can get wires for welding galvanized steel, very popular wire for welding aluminum. You can get aluminum welding wires etc. They come in a wide variety of diameters, different sizes of thickness of wire for different applications and for different machines. One of the integral parts of the machine is a bottle of compressed inert gas that is fed through the gun. The gas is used to protect the arc welds molten puddle from the oxygen and nitrogen in the atmosphere. We will go into this whole system in greater detail as we go through the series of lectures on MIG welding.

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Basics of Welding Machinery

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