Abstract
Metal spinning is a plastic forming method in which a rotating metal material is pushed by a roller to form a product. It is suitable for the production of a wide variety of products in small quantities owing to the low cost of forming dies. We have achieved the fabrication of noncircular shapes by using robot technology, which is difficult to realize by conventional methods. A prototype of a practical spinning machine has been developed in collaboration with a spinning machinery manufacturer. In this research, we have basically set our preference for commercial realization over academic contribution. This research was carried out in a bottom-up and trial-and-error manner, and the targets of this research were frequently modified depending on the situation. Bricolage, utilizing the combination of available and limited resources at hand, played a key role in the research activity. Decision-making reflected three-actuals theory, which values the actual field site, actual object, and actual situation. We included increased customer satisfaction in the criteria of value and carried out sales activities as a part of the research.
