公开(公告)号：US20050230360A1

公开(公告)日：2005-10-20

申请号：US11151974

申请日：2005-06-14

申请人： Roman Maev ,  Frank Ewasyshyn ,  Serguei Titov ,  John Paille ,  Elena Maeva ,  Alexey Denisov ,  Fedar Seviaryn

发明人： Roman Maev ,  Frank Ewasyshyn ,  Serguei Titov ,  John Paille ,  Elena Maeva ,  Alexey Denisov ,  Fedar Seviaryn

IPC分类号： B23K1/00 ,  B23K11/24 ,  G01N29/00 ,  G01N29/04 ,  G01N29/06 ,  G01N29/24 ,  G01N29/26

CPC分类号： G01N29/262 ,  G01N2291/02827 ,  G01N2291/02854 ,  G01N2291/044 ,  G01N2291/106 ,  G01N2291/2672

摘要： A method and apparatus for evaluating the size and/or quality of a spot weld. The apparatus includes a two-dimensional array of ultrasonic transducers arranged with a delay line for positioning adjacent a surface of a weld. A layer of gel is placed between the delay line and the weld surface. The array of transducers emit ultrasonic waves that pass into the weld. The reflected waves are received by the transducers and relayed to a central processing unit that analyzes the time delay, amplitude, and amplitude attenuation to calculate the border of the weld nugget, the thickness of the welded material, the thickness of the gel layer, and other factors contributing to weld quality.

摘要翻译： 用于评估点焊的尺寸和/或质量的方法和装置。 该装置包括布置有延迟线的超声换能器的二维阵列，用于邻近焊缝的表面定位。 在延迟线和焊接表面之间放置一层凝胶。 换能器阵列发射超声波进入焊缝。 反射波被传感器接收并转发到中央处理单元，中央处理单元分析时间延迟，振幅和振幅衰减，以计算焊接熔核的边界，焊接材料的厚度，凝胶层的厚度和 其他因素有助于焊接质量。

公开(公告)号：US20070038400A1

公开(公告)日：2007-02-15

申请号：US11536726

申请日：2006-09-29

申请人： Hsu-Tung Lee ,  Roman Maev ,  Elena Maeva ,  Serguei Titov

发明人： Hsu-Tung Lee ,  Roman Maev ,  Elena Maeva ,  Serguei Titov

IPC分类号： G01N29/06 ,  G01N29/30

CPC分类号： G01N29/4481 ,  B23K11/24 ,  B23K31/006 ,  B23K31/125 ,  G01N3/00 ,  G01N29/0681 ,  G01N29/11 ,  G01N2203/0051 ,  G01N2203/021 ,  G01N2203/0296 ,  G01N2291/02854 ,  G01N2291/02863 ,  G01N2291/2672

摘要： A system and method for assessing the quality of spot weld joints between pieces of metal includes an ultrasound transducer probing a spot weld joint. The ultrasound transducer transmits ultrasonic radiation into the spot weld joint, receives corresponding echoes, and transforms the echoes into electrical signals. An image reconstructor connected to the ultrasound transducer transforms the electrical signals into numerical data representing an ultrasound image. A neural network connected to the image reconstructor analyzes the numerical data and an output system presents information representing the quality of the spot weld joint. The system is trained to assess the quality of spot weld joints by scanning a spot weld joint with an ultrasound transducer to produce the data set representing the joint; then physically deconstructing the joint to assess the joint quality.

摘要翻译： 用于评估金属片之间的点焊接头质量的系统和方法包括探测点焊接头的超声波换能器。 超声波传感器将超声辐射传输到点焊接头，接收相应的回波，并将回波转换为电信号。 连接到超声波换能器的图像重构器将电信号转换为表示超声波图像的数值数据。 连接到图像重构器的神经网络分析数值数据，输出系统呈现表示点焊接头质量的信息。 训练该系统通过用超声波换能器扫描点焊接头来评估点焊接头的质量，以产生表示接头的数据集; 然后在物理上解构联合评估联合质量。