base material. Insufficient heat on the rod will cause it to merely lie in the softened trough of base material
without having fused to it. Both of these conditions, of course, mean an unsatisfactory weld. NOTE: A
slight yellowing of the rod and base material is caused by slight overheating. This, however, is desirable
during welding practice, to assure the beginner of having at least enough heat. It helps to
eliminate the possibility of making cold welds. Once satisfactory welder manipulation is achieved, the
beginner should gradually eliminate the yellowish tinge, but maintain the flow lines. Eventually, the
beginner should produce cold welds intentionally in order to recognize them as such. They have no flow
lines and minimum fusion takes place. This procedure should be repeated and alternated until the welder
can rapidly from a cold weld or a hot weld to a good weld.
10. You can stop the weld at any point merely by withdrawing the welder from the welding area. The rod
can then he twisted but not pulled off, while still soft, or cut with cutting pliers or a knife.