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US 2026/0073503 A1Published application
System for Assessing the Toughness of Longitudinal High Frequency Induction or Resistance Welds in Steel Tubes and Associated Method
AssigneeConsejo Superior de Investigaciones Cientificas
InventorsRicardo Fernández Serrano, Ma Carmen Peña Fernández
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Abstract
A system and method for the evaluation of longitudinal welds in steel tubes, and more specifically, of longitudinal welds made by high frequency induction welding (HFW) or electric resistance welding (ERW) comprises a system for the evaluation of the toughness of longitudinal welds by high frequency induction or electric resistance welding in steel tubes and an associated method.
Claims23
A system for assessing the toughness of longitudinal high frequency induction or resistance welds in steel tubes, comprising:
- an image acquisition means configured to acquire, in use, at least a two-dimensional image of an outer or inner surface of the tube in an analysis region (RA) around a bond line (LU) of the longitudinal weld, wherein the two-dimensional image comprises a first dimension (2x) essentially perpendicular to the bond line of the weld and a second dimension (2y) essentially parallel to the bond line (LU), and wherein the two-dimensional image comprises data associated with the microstructure of the tube in the analysis region (RA);
- a processing means configured to provide, from the data associated with the microstructure of the tube in the analysis region (RA), a greyscale profile with respect to the first dimension (2x);
- and
- an analysis means configured to analyze the greyscale profile and categorize the toughness of the tube in the analysis region (RA) around the bond line (LU) of the longitudinal weld.
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Dependencies are inferred from the claim text.