This paper benchmarks some methods of nondestructive testing for zero and high mileage spot weld quality/integrity and degradation evaluation (pin holes, voids, cracks, fatigue, corrosion, etc.). The methods include X-ray radiography, ultrasonic imaging, ultrasonic pulse/ echo, pulsed infrared or thermography, and laser/TV holographic interferometry imaging. The advantages and limitations of each method are provided with descriptive principles and real test examples. It is found that X-ray radiography combined with ultrasonic echo technique is the most favorable one considering time and cost for the current zero and high mileage spot weld evaluation.
Nondestructive Evaluation of Spot Weld Integrity/Quality: Method Comparison
Sae Technical Papers
International Congress & Exposition ; 1999
1999-03-01
Conference paper
English
Nondestructive Evaluation of Spot Weld Integrity/Quality: Method Comparison
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