document certifying that the welder has made his welds according to the standards prescribed.

the joining of welding metal and base metal.

the lowest temperature where metal becomes liquid

tool used for gas welding to control the flow of gases used.

Safety glasses

the temperature that needs to be reached to allow metal to begin to liquefy.

the highest temperature where a metal remains completely solid.

a point where metals have been fused together by heating the materials to a suitable temperature. Filler metals or pressure may be used to accomplish the weld.

protection equipment worn to protect the welder’s face and neck.

tool used in gas cutting to control the gases that are used for preheating and cutting metal.

the metal material that will be welded or cut.

the voltage that runs along the welding arc.