What Is Welding?
Welding, also known as fusion, is a manufacturing process and technology that involves joining metals or other thermoplastic materials such as plastics through heating, high temperature, or high pressure.
There are many sources of energy for modern welding, including gas flames, electric arcs, lasers, electron beams, friction, and ultrasonic waves. In addition to being used in factories, welding can also be carried out in various environments such as the wild, underwater, and space. No matter where it is, welding may pose a danger to the operator, so appropriate protective measures must be taken during welding.
Key Points about Welding:
Heat Source: Common welding methods use electric arcs, gas flames, lasers, or friction to generate the necessary heat.
Filler Material: Sometimes an extra metal (filler) is added to strengthen the weld.
Shielding: To prevent contamination from oxygen or moisture in the air, gases or flux coatings are often used.
Types :
Arc welding (e.g., Stick, MIG, TIG) – uses an electric arc to melt metal.
Gas welding (e.g., Oxy-acetylene) – uses burning gases to produce heat.
Resistance welding – uses pressure and electric current.
Advanced methods – such as laser or ultrasonic welding.
The development trend of welding technology
Improving welding productivity is an important driving force for the development of welding technology
Enhancing the mechanization and automation levels of preparation workshops is currently a key development direction for advanced industrial countries around the world.
The automation and intelligence of the welding process are important directions for improving the stability of welding quality and addressing harsh working conditions.
The development of emerging industries continuously drives the advancement of welding technology.
The research and development of heat sources is the fundamental driving force for the advancement of welding technology.
Energy-saving technology is a matter of widespread concern.
Welding robots are industrial robots engaged in welding (including cutting and spraying).
With the development of electronic technology, computer technology, numerical control, and robot technology, automatic welding robots have been used in production since the 1960s, and their technology has become increasingly mature.
They mainly have the following advantages:
Stabilize and improve welding quality, and be able to reflect welding quality in numerical form;
Improve labor productivity;
Improve the labor intensity of workers and enable them to work in hazardous environments;
Reduced the requirements for workers' operational skills;
Shortened the preparation period for product modification and replacement, and reduced the corresponding equipment investment.
Applicable to the following industries：
Automotive (frames, exhausts, body panels)
Aerospace
Shipbuilding
Construction machinery
Consumer appliances
Therefore, it has been widely applied in various industries.