Abstract: With the adjustment of global energy structure and the improvement of energy efficiency, modern petrochemical and other industrial equipment is increasingly developing towards the direction of large-scale. Welding, as a traditional connection process, is still the key manufacture technology of modern industrial equipment. However, welding inevitably brings tensile residual stress, which is the main reason for the failure of welding structure, such as stress corrosion, fatigue and fracture, and has an important impact on the structural integrity and safety service of pressure equipment. Therefore, the effective control m of welding residual stress is the key to ensure the structural integrity of large pressure equipment. As a kind of "invisible and untouchable" natural defect, the accurate calculation method and reliable measurement methods of welding residual stress are also the basis of scientific and effective control. In this paper, based on the research achievements in the field of welding residual stress domestic and foreign, this study summarized the research progress in residual stress calculation, measurement and control nearly half a century. The research status of the integrated calculation method for welding residual stress combining process, material and structure simulation is analyzed. Various welding residual stress testing methods are reviewed in detail, and their advantages and disadvantages are summarized. Then, the regulation methods of residual stress are classified and described, with emphasis on the newly emerged regulation methods of residual stress. Finally, the development trend in the field of welding residual stress calculation, measurement and control is prospected.

Key words: pressure equipment, welding residual stresses, calculation, measurement, control