Welders use electrical currents to heat up metal to a point where it can bond with another piece. Welding consists of constant physical activity, requires heavy lifting, bending and maintaining awkward positions to reach areas that need to be repaired. Work duties can vary depending on the industry that employs you. For example, the equipment you use and work with is different if you're working in auto mechanics than if you worked with electronic manufacturing.
The education requirements for being a welder are different for every employer. Some employers require welders to have a high school diploma and require completion of employer based welding tests. Other employers want you to have a certificate or undergraduate degree from a technical school, vocational school, or a community college.
Welders just beginning can advance to skilled positions and take on more complex jobs. Some may become supervisors, inspectors or technicians. Some will even open their own welding and repair shops.
Welders that work in auto mechanics for example will earn around $20 an hour. If they are doing underwater pipe fitting they will be paid around $200 an hour because it is more dangerous and requires extreme caution.