工艺与制造英文2020被引 5
用于复杂形状接合面阻力焊接的定制加热元件
A tailored heating element for resistance welding of complex shaped joining surfaces
Erik Dahl, Helmut Schürmann, Christian Mittelstedt · Institute for Lightweight Construction and Design (KLuB), Department of Mechanical Engineering, Technical University of Darmstadt, Darmstadt, Germany
摘要整理
为了获得结构件设计的更大自由度，开发了一种单丝加热元件，能够焊接大面积和复杂形状的表面。采用所开发的加热元件对连续碳纤维增强聚酰胺6（CF-PA6）的焊接工艺窗口进行了研究，主要改变电功率、电能和接合压力等工艺参数。通过单剪和双剪试验以及显微图像分析，评估了这些工艺参数对焊接接头质量的影响。基于试验结果，提出了工艺参数的推荐值。通过改变试样的环境条件来分析湿度对剪切传递接头的影响，采用了PA6试样的加速调湿方法。此外，还提出了一种无传感器的焊接过程温度监测方法，并与传统测量方法进行了对比。该研究为CF-PA6复合材料的阻力焊接工艺优化和质量控制提供了重要参考。
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