With the development of digital technology, the digital welding machine and digital control technology of the ground connection technology of the representative office have entered the market steadily. Three Gorges project, West to east gas transmission project, aerospace engineering, marine engineering and other national large-scale infrastructure projects, effectively promoted the development of advanced welding, especially the development of welding automation technology and progress.  The automation of the welding of the automobile and the spare parts is changing rapidly.
The welding industry of our country is gradually moving towards high efficiency, automation and intelligence". Chinas welding automation rate is less than 30%, with the developed industrial countries, the gap between the 80%. From twentieth Century, the country gradually in various industries to promote automatic welding based on the welding method - gas shielded welding, to replace the traditional manual arc welding, has achieved initial success. It can be expected that in the future, the domestic automatic welding technology will develop at an unprecedented speed.
Current situation of high efficiency and automatic welding technology
In 1990s, China welding industry to realize the mechanization and automation of the welding process has been working as a strategic goal, the industry in the development of science and technology into practice in the development of welding automation, production lines and flexible manufacturing technology research and development of welding, design and development of the application of computer aided manufacturing; the flux cored wire growth rate increased significantly that would be more than solid wire in the next 20 years, will eventually become the leading product welding center. Prospect of welding automation technology
The development of electronic technology, computer microelectronics and automation technology, promote the development of welding automation technology. In particular, the introduction of digital control technology, flexible manufacturing technology and information processing technology to promote the revolutionary development of welding automation technology.
(1) the intelligent control system of welding process is one of the key problems in welding automation, and is also an important direction of future research. The study of optimal control methods, including linear and nonlinear control. The most representative is the fuzzy control, neural network control and expert system.
(2) flexible welding technology is also the focus of research. In the future research, a variety of optical, mechanical and electrical technology and welding technology, in order to achieve accurate and flexible welding. It is the basic way to improve the level of welding automation by using microelectronic technology to transform the traditional welding equipment. The numerical control technology with all kinds of welding equipment, in order to improve its flexibility, is a current research direction; in addition, combined with the welding robot and expert system, realize the automatic path planning, trajectory correction, automatic control automatic penetration depth function is the focus of the study.
(3) the integration of welding control system is the integration of human and technology, and the integration of welding technology and information technology. Information flow and material flow are important components of the integrated system, which can greatly reduce the amount of information and real-time control. Pay attention to the role of the people in the control and the treatment response and ability to judge, to establish friendly man-machine Christmas, make the person and the automatic system of harmony and unity, is not to be underestimated integrated system.
(4) improve the reliability of welding power supply, quality stability and control, as well as excellent dynamic performance, but also focus on research topics. With the adjustment of arc movement, wire and welding torch is developed, can detect the slope at the beginning, the temperature field and weld pool penetration status, and timely provide high performance welding welding parameters, and should actively develop welding process simulation technology of computer. The welding technology from "skill" to "science" evolution roller to realize welding automation is an important aspect.
The first ten years of this century will be the favorable period for the rapid development of the welding industry. The welding workers go15, must establish Zhinanershang determination. Seize the opportunity and strive for the improvement of the level of welding automation in china.