Development of Non-Destructive Technology for Detecting Grinding Burns
| Autor: | Ryo Ito, Murakami Shinji, Takayuki Azuma, Tsunemoto Kuriyagawa, Shinji Soma |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | International Journal of Automation Technology. 7:700-707 |
| ISSN: | 1883-8022 1881-7629 |
| Popis: | The nitric acid corrosion method that is currently in use in the production field to inspect for grinding burns on workpieces has some disadvantages: its detection levels depend on people and equipment, and is a destructive inspection method that does not allow for a total inspection. This study therefore aims to develop a non-destructive technology for detecting grinding burns, one that will allow for quantitative total inspections on a production line. An eddy current sensor seems very promising as a means of performing non-destructive inspections because of its short measuring time and low costs. In this paper, we propose a method of simultaneously measuring the eddy current sensor’s output at two different frequencies (the multi-frequency measuring method), as this method is not affected by any variations in the basic material of the inspection object, and we then verify its effectiveness. In addition, we prototype a grinding burn detection system using the proposed measuring method, and we evaluate the determinations it makes on grinding burns on workpieces. As a result, the proposed multi-frequency measuring method is found capable of determining grinding burns on workpieces more quantitatively and with higher sensitivity than the nitric acid corrosion method. |
| Databáze: | OpenAIRE |
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