Abstract:Many kinds of defects occurring at winding process such as telescoping and starring have been recognized. Their main cause is internal stress of a wound roll. Thus, understanding internal stress of a wound roll is necessary to prevent these defects. In the field of web handling, analytical models have been developed to figure out radial and circumferential stress of a wound roll. So far, models have been built based on an assumption that web has uniform thickness. However, actual web thickness is not uniform. … Show more
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