Gas Shielded Welding
Gas shielded welding,also known as Metal Inert Gas(MIG)welding or CO2 welding,is a common automatic welding method.In gas shielded welding,the welding arc is formed in the weld joint,while inert gas or mixed gas is used to prevent the weld from being contaminated by harmful elements like oxygen and nitrogen in the surrounding air.Gas shielded welding finds extensive use in steel structures,automotive manufacturing,shipbuilding,and rail transportation.
Arc Welding
Arc welding,also referred to as manual arc welding,is one of the earliest and most common welding methods.However,full automation of arc welding is achieved through welding robots.Arc welding employs a metal rod called an electrode,which melts and fuses with the base material during the welding process.Arc welding is commonly used in the fabrication of bridges,pressure vessels,petrochemical equipment,and other heavy-duty structures.
Laser Welding
Laser welding is a high-energy focused welding technique that utilizes a laser beam to generate high temperatures,fusing metal components together.Laser welding offers advantages such as high precision,small heat-affected zones,and rapid welding speeds.It is extensively applied in electronics,aerospace,microelectronics devices,and precision instrument manufacturing.
Electron Beam Welding
Electron beam welding is a method that uses the kinetic energy of high-speed electrons to melt and weld metals.Electron beam welding is characterized by deep weld penetration,minimal heat-affected zones,and high welding speeds.It is commonly employed in high-end manufacturing fields like aerospace,defense industries,and space exploration.
Plasma Arc Welding
Plasma arc welding involves ionizing gas to create a plasma arc,which is then used for welding.This method is suitable for materials with good electrical conductivity,such as stainless steel,aluminum alloys,and copper alloys.Plasma arc welding finds application in food processing,aerospace,chemical equipment,and other industries.
Pressure Welding
Pressure welding is a method that achieves welding by placing metal components between electrodes and applying pressure and heat.Pressure welding is used for connecting thin plates,wires,and pipes of metal components.It is widely employed in automotive manufacturing,home appliance production,and pipeline engineering.
Friction Welding
Friction welding is a method of heating and joining two metal components through high-speed friction.This welding method is suitable for connecting high-strength and high-temperature materials and is commonly used in aerospace,automotive manufacturing,and machinery production fields.
In summary,automatic welding methods include gas shielded welding,arc welding,laser welding,electron beam welding,plasma arc welding,pressure welding,and friction welding.These methods are extensively applied in various fields such as steel structure manufacturing,aerospace,automotive production,electronic devices,and chemical equipment,providing efficient and precise welding solutions for diverse industries'production and manufacturing needs.
