electric car aluminum bonding detection project
Related equipment: American NDT Systems IBT 3100+BondHub adhesive detection 3D imaging detector
Solve the problem: High efficiency and accurate detection of bonding effect on the premise of no dissection of the car">
When propagating inside the material,Ultrasonic faced with a defect will produce acoustic phenomena, such as reflection, scattering, and transmission.According to the structure characteristics of the tested sample, the internal quality of the material is often evaluated by using the sound pressure of the reflected wave at the bottom surface of the material or the sound pressure at the interface of the defect or the change in sound pressure of the transmitted wave.
Two-layer aluminum plate sample transmission method
Three layers of aluminium plate sample transmission method
Bonding of three-layer of aluminum sheet
By comparison,transmission test results can clearly see the distribution of the glue layer,because the glue layer is distributed in the form of a ring,the lowest acoustic transmission energy of air(the black part of the result),the second is glue(red part of the middle),the highest sound transmission energy(the yellow part).
Two-layer aluminum plate sample reflection method
Three-layer aluminum plate sample reflection method
As can be seen,when using reflection detection,the bonding of two layers of thin plates can be detected well,but the energy loss of sound waves is severe when the three-layer sample is tested,the results near the probe bonding layer can be detected and It is difficult to detect the results of the third layer.
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