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Development and Practicing of Automatic Fluorescent Magnetic Particles Inspection
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English
Abstract
The fluorescent magnetic particle inspection is widely used as a visual inspection method for checking cracks generated in hardening and grinding of induction-hardened parts.
However, automation of this inspection process has strongly been demanded, due to poor environmental conditions and production line speed.
To satisfy such a demand, we have developed a method for picking up images of automotive parts with higher S/N ratio and an original algorithm for image processing which helps measure cracks accurately without being affected by the illuminance and magnetic particle solution concentration.
Then we selected the front axle shaft as the object to study practical use and have solved various technical problems in actual use, thereby succeeding in actual application to our production lines.
Topic
Citation
Fukui, T. and Morinaga, Y., "Development and Practicing of Automatic Fluorescent Magnetic Particles Inspection," SAE Technical Paper 930576, 1993, https://doi.org/10.4271/930576.Also In
Simulation and Development in Automotive Simultaneous Engineering
Number: SP-0973; Published: 1993-03-01
Number: SP-0973; Published: 1993-03-01
References
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- Nagata et al “Development of Automatic Dry magnetic Particle Flaw DetectionSystem” First Industrial Image Sensing Symposium 35 40 1986
- Cheu Y.F. Automatic Crack Detection With Computer Vision and Pattern Recognition of Magnetic Particle Indications Materials Evaluation 42 11 1506 1510 1984
- Yamazaki “Study on Printing Defect Detection System Using Image Processing” Collection of papers at 1988 Spring Assembly of Precision Engineering Society 55 56 1988
- Honda “Empty Bottle Inspection System” Automation 30 11 33 39 1985
- Ozaki et al “Image Processing - From Fundamentals to Applications -” Kyoritu Publishing 1983