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Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by using high heat to melt the parts together and allowing them to cool causing fusion. Welding is distinct from lower temperature metal-joining techniques such as brazing and soldering, which do not melt the base metal.
( https://en.m.wikipedia.org/wiki/Welding)
The average salary for welders is $36,720, which is a pretty typical middle class welding job. However, welding jobs will bottom out around $25,000 a year, which may be common for many entry-level welding positions. On the other hand, the 90th percentile of welders earn around $57,000 a year.

The welding is cool because of the difference thing you can do in the field and the money you can make and the job you be in like work in car for this business like BMW or Ram or other car business.