Abstract
In recent years, increasing interest has been shown in the cold rolling of strip between work rolls driven at different speeds. The present work investigated the potentialities of the process as a means of reducing the rolling load. The effects of mismatching the work roll speeds on roll separating force, roll torque and forward slip were investigated experimentally on a modified cold mill. The results show that a decrease in roll force of as high as 30–40% is possible when rolling with “dry” rolls. Theoretical discussions have been made also using simplified theories, the predictions of which are in reasonable agreement with experimental observations.
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