| 摘要 |
Methods and apparatus are disclosed for processing of steel billets or the like to remove surface defects. A material-removing device such as a grinding wheel is automatically controlled to initiate removal of material at points where defects have been detected and to continue removal of material as long as cracks or other defects continue to be detected. In certain disclosed embodiments, an inspection is performed using magnetic particle or other inspection equipment, the initial removal of material being controlled therefrom. Thereafter, material-removal is controlled from signals produced by a probe which is carried in the removal device or adjacent thereto. In other disclosed embodiments, a thin layer of material is removed to permit detection of defects by a probe, the material-removal being both initiated and continued under control of probe signals.
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