METHOD FOR ANALYZING WELDES FORMED BY A LASER WELDING PROCESS AND

The invention relates to a method for analyzing a weld formed by a laser welding process, comprising: thermally exciting the weld by irradiating at least one laser pulse onto the weld, detecting an attenuation characteristic of temperature radiation emitted by the weld, and determining whether there...

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Bibliographische Detailangaben
Hauptverfasser: LORENZ THOMAS, REISER JOHANNES, HELLER STEFAN, GRAU STEFAN, NOLTE JENS, MOSER RUDOLF, DONG WEI QIANG, TUNK, ANDREAS, BIRMANNS STEFAN
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention relates to a method for analyzing a weld formed by a laser welding process, comprising: thermally exciting the weld by irradiating at least one laser pulse onto the weld, detecting an attenuation characteristic of temperature radiation emitted by the weld, and determining whether there is a weld defect based on the evaluation of the detected attenuation characteristic. The invention further relates to a laser machining system for analyzing a weld seam formed between at least two workpieces by means of a laser welding process. 本发明涉及一种用于分析通过激光焊接过程形成的焊缝的方法,所述方法包括:通过将至少一个激光脉冲照射到所述焊缝上来热激励所述焊缝,检测由所述焊缝发射的温度辐射的衰减特征,以及基于对检测到的衰减特征的评估来确定是否存在焊接缺陷。此外,提出一种用于分析通过激光焊接过程在至少两个工件之间形成的焊缝的激光加工系统。