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Welding is one of the most common joining techniques in nearly all industrial branches. The applications for welded joints vary from welding in the garage to highly industrialized welding processes in safety relevant components like cars, airplanes, pipelines, and power plants. It is obvious that the requirements for weld quality differ depending on the application. For safety relevant parts, the welds have to be technically flawless and nondestructive testing has to identify possible flaws before a component is put into operation. This chapter gives an overview of the relevant welding techniques and probable flaws within the welds. Depending on the welding technique, different flaws are likely and should be detected by nondestructive evaluation (NDE) after or during the welding process. Several NDE techniques qualify to detect the flaws within welds. The main techniques, which are present in current standards for weld testing, are described in this chapter. More advanced techniques that are not yet standardized will also be discussed. Industry 4.0 offers a variety of new opportunities and new challenges for industrial processes. This evolution also has an impact on NDE, as nondestructive testing is essential to safety relevant products, structures and components in all areas of our lives. The overall impact on NDE and the linked transformations are subsumed as NDE 4.0. Welding processes already are highly automated in some safety relevant industrial branches like automotive or aerospace industries. Another relevant industrial branch is pipe production as pipelines are crucial for energy and chemical industries. The quality assurance of these parts is held to a high standard and in-line NDE is common. In other safety relevant branches like power generation, manual welding and weld testing are still state of the art, for example, during installation of piping systems. The relevance for NDE 4.0 in context of weld testing is discussed in the fourth part of this chapter. In the last part different applications are shown, where automated testing takes place in different industrial applications.

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Nondestructive Testing of Welds

  • 工具书词条

  • 发表日期：

    2025年

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  • A. Juengert,
  • M. Werz,
  • Roman Gr. Maev,
  • Michael Keller,
  • P. Labud,
  • Ryan Scott,
  • Andrew Ouellette,
  • Matthias Dobler

摘要

Welding is one of the most common joining techniques in nearly all industrial branches. The applications for welded joints vary from welding in the garage to highly industrialized welding processes in safety relevant components like cars, airplanes, pipelines, and power plants. It is obvious that the requirements for weld quality differ depending on the application. For safety relevant parts, the welds have to be technically flawless and nondestructive testing has to identify possible flaws before a component is put into operation. This chapter gives an overview of the relevant welding techniques and probable flaws within the welds. Depending on the welding technique, different flaws are likely and should be detected by nondestructive evaluation (NDE) after or during the welding process. Several NDE techniques qualify to detect the flaws within welds. The main techniques, which are present in current standards for weld testing, are described in this chapter. More advanced techniques that are not yet standardized will also be discussed. Industry 4.0 offers a variety of new opportunities and new challenges for industrial processes. This evolution also has an impact on NDE, as nondestructive testing is essential to safety relevant products, structures and components in all areas of our lives. The overall impact on NDE and the linked transformations are subsumed as NDE 4.0. Welding processes already are highly automated in some safety relevant industrial branches like automotive or aerospace industries. Another relevant industrial branch is pipe production as pipelines are crucial for energy and chemical industries. The quality assurance of these parts is held to a high standard and in-line NDE is common. In other safety relevant branches like power generation, manual welding and weld testing are still state of the art, for example, during installation of piping systems. The relevance for NDE 4.0 in context of weld testing is discussed in the fourth part of this chapter. In the last part different applications are shown, where automated testing takes place in different industrial applications.