Welding, a crucial process in the realm of metalworking, encompasses various fundamental forms. The most common among them is fusion welding, where heat is applied to melt the base metals and a filler material, creating a permanent bond. Another form is pressure welding, which involves applying high pressure to join metals without the need for melting. Brazing and soldering, though distinct from welding, also involve heating and the use of a filler material to create a joint. Each of these forms has its unique applications and advantages, making welding a versatile and indispensable technique in the manufacturing industry.