Pipe welding is a complex material forming and processing process that integrates computer, automatic control, information processing, machinery and electricity. It is mainly used for the field installation and welding of various pipelines and other production tasks.
Due to the difference of welded pipe, dimension and position, the actual position of arc movement in welding will constantly change. Therefore, it is required that the welding equipment can detect the deviation and penetration of welding seam in real time, and adjust the welding path and welding parameters.

For this kind of complex control process, this book mainly introduces the current situation of pipeline welding research；Welding quality control information sensing technology, including welding image processing method, welding process control information voice prompt technology and MIG welding arc acoustic sensing technology；Pipe welding process control hardware and software system design, including the design of pipe welding process control system, arc under the strong interference of computer multimachine communication design, pipe TLG welding system anti-interference design, the principle of pipe welding process control system software design, pipe welding machine computer operating platform, and the execution unit computer program module；The numerical simulation of temperature field and stress field of welded pipe can provide reference data for cold machining processes such as bending, expanding pipe and forming edge after welding, and provide basis for parameter optimization selection of welded pipe specification。
The pipeline welding technology is described in detail, including the pipeline welding small current automatic contact arc ignition process, the pipeline welding arc length adjustment and control, the thick wall tube welding side wall penetration process, based on the visual pipeline welding seam tracking deviation control, based on the arc acoustic sensing pipeline welding quality control and the offshore pile tube automatic welding machine application。