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首页> 外文会议>SAE Aerospace Manufacturing and Automated Fastening Conference >Testing of Adhesive Bonds on Large Industrial Components made of CFRP with a Robot Inspection System Using Active Thermography, Leading to Reduced Cycle Times
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Testing of Adhesive Bonds on Large Industrial Components made of CFRP with a Robot Inspection System Using Active Thermography, Leading to Reduced Cycle Times

机译：用活性热成像用机器人检测系统对CFRP制成的大型工业部件上的粘合剂粘合，导致循环时间减少

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摘要

The integration of omega stringers to panels made of carbon fiber reinforced plastic (CFRP) by adhesive bonding, which is achieved by baking in an autoclave, must be subject to high quality standards. Failures such as porosity, voids or inclusion must be detected safely to guaranty the functionality of the component. Therefore, an inspection system is required to verify these bonds and detect different kinds of defects. In this contribution, the advantages of a robotic inspection system, which will be achieved through continuous testing, will be introduced. The testing method is the active thermography. The active thermography has major advantages compared with other non-destructive testing methods. Compared to testing with ultrasonic there is no coupling medium necessary, thus testing will be significantly enhanced. To ensure the water to drain away, which is necessary for the function of the ultrasonic transducer, the shell element must be turned upside down in a subsequent step. This is very complex and requires much time. Due to the spatial expansion of the shell elements, a further advantage will be achieved by a continuous movement of the inspection system. In this variant of testing with active thermography, the positioning time for the measurement system is eliminated and by spatial shifting the contrast of failure measurement, a much shorter testing time will be achieved. As a result, the inspection system has the potential to reduce cycle times substantially. Additionally, failures into adhesive bonds can be automatically detected by a down-streamed image processing.
机译：通过在高压釜中烘烤的粘合剂粘合，欧米茄桁条对由碳纤维增强塑料（CFRP）制成的面板的集成，必须进行高质量标准。必须安全地检测孔隙度，空隙或包含孔隙，以保证组件的功能。因此，需要检查系统来验证这些债券并检测不同类型的缺陷。在这一贡献中，将引入通过连续测试实现的机器人检查系统的优点。测试方法是有源热成像。与其他非破坏性测试方法相比，主动热成像具有重大优势。与超声波的测试相比，没有必要的耦合介质，因此测试将得到显着提高。为了确保水排出，这对于超声换能器的功能是必要的，必须在随后的步骤中颠倒壳体元件。这非常复杂，需要很多时间。由于壳体元件的空间膨胀，通过检查系统的连续运动将实现另一个优点。在具有有源热成像的测试变型中，测量系统的定位时间被消除并通过空间移位的故障测量对比度，将实现更短的测试时间。结果，检查系统具有大大减少循环时间的可能性。另外，可以通过下流式图像处理自动检测到粘合粘合的故障。

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