Abstract Automated weld deposition coupled with the real-time robotic Non-Destructive Evaluation (NDE) is used in this paper. For performance verification of the in-process inspection system, an intentionally embedded defect, a tungsten rod, is introduced into the multi-pass weld. A partially-filled groove (staircase) sample is also manufactured and ultrasonically tested to calibrate the real-time inspection implemented on all seven layers of the weld which are deposited progressively. The tungsten rod is successfully detected in the real-time NDE of the deposited position. The same robotic inspection system was then used to continuously monitor an intentionally-manufactured crack for 20 h. The crack was initiated 22 min after the weld ended and it grew quickly within the next 1.5 h. The crack growth stopped approximately after 2 h and no considerable change in the reflection signal was detected for the next 18 h of monitoring.

中文翻译：

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使用自动焊接和过程检测系统连续监测有意制造的裂纹

摘要 本文使用自动焊接沉积与实时机器人无损评估 (NDE) 相结合。为了验证过程检测系统的性能，将有意嵌入的缺陷钨棒引入多道焊缝中。还制造了一个部分填充的坡口（阶梯）样品并进行了超声波测试，以校准对逐步沉积的所有七层焊缝实施的实时检查。在沉积位置的实时无损检测中成功检测到钨棒。然后使用相同的机器人检测系统连续监测故意制造的裂纹 20 小时。裂纹在焊接结束后 22 分钟开始出现，并在接下来的 1.5 小时内迅速增长。