Process for determining weld quality using flexural characteristics
AssigneeKing Fahd University of Petroleum and Minerals
InventorsAdesina Akeem Yusuf, Iyad T. Alzaharnah, Bekir S. Yilbas
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Abstract
A process for determining the quality of a laser weld-seam, whereby a welded plate and a geometrically equivalent non-welded plate are subjected to a physical impact to generate a natural vibration frequency. The natural vibration frequency of the welded plate and the non-welded plate is then measured with an accelerometer and compared. The uniformity of the weld is then determined by the similarity between the natural vibration frequency of the welded plate and the geometrically equivalent non-welded plate.
Claims18
A process for determining the quality of a laser weld-seam, comprising:
- subjecting a welded plate comprising the laser weld-seam and a geometrically equivalent non-welded plate to a physical impact to generate a natural vibration frequency;
- measuring the natural vibration frequency of the welded plate and, separately;
- measuring the natural vibration frequency of the non-welded plate, with an accelerometer;
- comparing the natural vibration frequency of the welded plate to the natural vibration frequency obtained from the geometrically equivalent non-welded plate;
- determining a uniformity of the laser weld-seam by the similarity between the natural vibration frequency of the welded plate and the geometrically equivalent non-welded plate;
- and
- based on the determined uniformity of the laser weld-seam, welding a second plate with at least one welding parameter that differs from welding parameters used to weld the welded plate when the laser weld-seam is determined to be non-uniform.
Dependencies are inferred from the claim text.