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US 2010/0133248 A1Published application
Method and device for quality control of a weld bead
AssigneeRENAULT s.a.s.
InventorsHenri Pinon, Sebastien Vallet, Igor Smurov, Philippe Bertrand, Mikhail Ignatieu
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Abstract
A method for quality control of a weld bead made using a welding tool. The method collects, by an optical pyrometer having a high frequency acquisition sensor, at least one signal representative of the temperature of a melted portion of the weld bead, and includes a frequency phase for checking that the recurring frequencies are within an acceptable range of reference frequencies, to determine if the weld bead is defective.
Claims10
1-9. (canceled)
A method of checking quality of a weld bead produced by a welding tool, the method comprising:
- collecting, by an optical pyrometer including a high-frequency acquisition sensor, at least one signal representative of temperature of a molten portion of the weld bead;
- and
- processing/analyzing the signal for identifying possible defects in the weld bead,
- wherein the signal processing/analyzing includes a frequency phase recording repetition frequencies of the signal by mathematical tools and verifying that the repetition frequencies lie within a reference frequency-acceptance range, so as to determine whether the weld bead includes a defect.
1 more element
Dependencies are inferred from the claim text.