| Reducing a surface roughness of hot-rolled stainless steel is essential to improve a buffing quality of cold-rolled stainless steel. Even though steel shot blasting increases the surface roughness (R_(max) value) of hot-rolled and annealed stainless steel, it is the most effective process for descaling. In order to improve the surface quality, the shot mark depth generated on the surface by shot blasting should be predicted and controlled. The relationship among the initial shot blasting velocity, shot size, blasting distance, blasting angle as well as shot mark depth was estabilished by a regression method. The results are in good agreement with the experimental results. This regression method could be applicable to other materials. |
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