Welding, also known as welding, is a manufacturing process and technique for joining metals or other thermoplastic materials such as plastics by heat, high temperature, or high pressure.
There are many energy sources for modern welding, including gas flame, arc, laser, electron beam, friction and ultrasonic.
In addition to being used in factories, welding can be performed in a variety of environments, such as in the field, underwater, and in space.
Welding can be dangerous to the operator wherever it is, so proper precautions must be taken when welding.
The possible injuries caused by welding to the human body include burns, electric shock, visual impairment, inhalation of toxic gases, and excessive ultraviolet radiation.
