Ultrasonic Testing of Welds
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author：admin
source：Hiwave
time：2025-01-02
catogory：Industry News
As the New Energy Vehicle (NEV) industry rapidly develops, ensuring the quality and reliability of its critical components has become increasingly important. The water……
As the New Energy Vehicle (NEV) industry rapidly develops, ensuring the quality and reliability of its critical components has become increasingly important. The water cooling plate, a core component of the battery thermal management system in electric vehicles, plays a vital role in maintaining optimal operating temperatures. The weld quality of these plates directly affects the system’s cooling efficiency and long term stability. This article explores how an Ultrasonic Scanning Microscope (SAM), particularly a Water Immersion Ultrasonic Scanning Microscope , can be utilized for efficient and precise inspection of welds in water cooling plates.
Working Principle of Ultrasonic Scanning Microscope (SAM)
The Ultrasonic Scanning Microscope (SAM) is a precision instrument that uses ultrasonic waves for nondestructive testing and high resolution imaging, specifically designed to detect internal defects, delamination, and cracks within materials.
1.Ultrasonic Wave Emission and Reception
Transducer: The SAM employs high frequency ultrasonic transducers that convert electrical signals into ultrasonic waves and receive the reflected signals.
Frequency Selection: Different frequencies are chosen based on application requirements to balance between resolution and penetration depth.
2.Sample Preparation and Coupling Medium
Sample Mounting: The sample to be inspected is securely fixed in a fixture to ensure stability and ease of scanning.
Coupling Medium: For Water Immersion SAM , the sample is partially or fully submerged in water, which serves as the coupling medium to ensure efficient sound wave transmission.
3.Scanning Process
Point by Point Scanning: The transducer moves across the sample surface point by point, emitting ultrasonic waves and capturing the reflected signals at each location.
4.Data Processing and Image Generation
Signal Acquisition: The received echo signals are recorded for further analysis.
5.Analysis and Reporting
Defect Identification: Users can visually inspect the location, size, and shape of internal defects.
Quantitative Analysis: Measurement of defect dimensions and other quantitative data.
Report Generation: Detailed reports summarizing the analysis results are compiled for quality assessment.
Water Immersion SAM is particularly suitable for inspecting small components, providing stable acoustic coupling, reduced noise interference, and enhanced detection accuracy.
