I need the processes they applied to the materials in this v

I need the processes they applied to the materials in this video in time

example at 0:40-0:50 seconds they applied this process

for this video https://www.youtube.com/watch?v=VpwkT2zV9H0

Solution

>> During this time frame, a process which is known as Electric Arc Welding (with the help of robot) are used

Arc welding is a type of welding that uses a welding power supply to create an electric arc between an electrode and the base material to melt the metals at the welding point. They can use either direct (DC) or alternating (AC) current, and consumable or non-consumableelectrodes. The welding region is usually protected by some type of shielding gas, vapor, or slag. Arc welding processes may be manual, semi-automatic, or fully automated. First developed in the late part of the 19th century, arc welding became commercially important in shipbuilding during the Second World War. Today it remains an important process for the fabrication of steel structures and vehicles.