Welding is a process that joins metal pieces together. Welding can be done with a variety of metals, including steel, aluminum, and copper. There are seven basic types of welding:1. buttwelding: Two pieces of metal are joined together by pressing them together and then welding the edges together.

2. seamwelding: This type of welding is used to join two pieces of metal that have different thicknesses or shapes. The weld is created by heating the metal to a high temperature and then using an oxy-acetylene torch to create a molten pool. The weld is then cooled and solidified using a filler rod.

3. tackwelding: This type of welding is used to join two pieces of metal that are not joined at their edge. Instead, the weld is made on the surface where the two pieces of metal meet. Tackwelding is often used in manufacturing where it is more difficult to Weld two edges together than it is to join them at their surface.

4. overlay welding: This type of welding is used to make an area on one piece of metal look like it was originally part of another piece of metal. Overlay welding

Welding is a process that is used to join two or more pieces of metal together. There are seven basic types of welding, and each has a different process and requirements.Welding processes:

Shielded Metal Arc Welding (SMAW): This is the most common type of welding, and it uses a shielded gas arc to weld metal surfaces.

Gas Tungsten Arc Welding (GTAW): GTAW uses a tungsten electrode to weld metal surfaces.

Gas MIG Welding: Gas MIG Welding uses an electric current to weld metal surfaces.

Active passive Shielded Metal Arc Welding (ApMSW): ApMSW uses both an active and passive shield to protect the welding area.

Stick welding: Stick welding is used to join small pieces of metal together. It is less common than other types of welding.

Welding Equipment: Welders need specialized equipment to do welding properly. This includes an arc welder, MIG welder, or TIG welder, as well as clamps, wire baskets, and torches.