Welding body seams

TIG process also gives a much much greater control over the amount of heat put into a weld and thus a smaller weld affected area, BUT also requires a great level of skill because you are using both hands and a foot (if you use a foot throtle) mig will work fine but as stated a flanger will provide for the best joint and weld in a spot weld fashion, do not, I repeat DO NOT weld in a continious seam fashion or your panel will wave at everyone from a mile away.