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

the joining of welding metal and base metal.

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.

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

Safety glasses

https://www.auto.edu/blog/working-in-welding-the-ultimate-welding-terms-glossary/#:~:text=the%20range%20of%20temperatures%20between%20solidus%20and%20liquidus.

process of reheating hardened steel below the lowest critical temperature and then allowing it to cool to make the steel stronger.

the highest temperature where a metal remains completely solid.

the lowest temperature where metal becomes liquid

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

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

the metal material that will be welded or cut.