Final answer:
Gas Metal Arc Welding (GMAW) is the process using a continuous consumable wire electrode and a shielding gas, requiring safety gear to protect the welder from the heat and light produced during welding. It is efficient and often used in industrial applications.
Step-by-step explanation:
The welding process characterized by the use of a continuous consumable wire electrode and a shielding gas is known as Gas Metal Arc Welding (GMAW). This method involves feeding a wire electrode continuously through a welding gun, where it melts and joins the metal pieces. A shielding gas is also propelled from the gun to protect the weld area from atmospheric contamination. This process is commonly used in industrial settings for its efficiency and speed.
Equipment such as welder's gloves and helmets are crucial for a welder's safety, shielding from the thermal energy of the electric arc which can cause skin burns and retinal damage. Welding can also involve protection techniques to prevent corrosion, like the use of cathodic protection and protective coatings. The latter includes galvanization, where a thin zinc layer offers protection, or sacrificial electrodes that safeguard through a galvanic process.