Abstract
Metal spinning is a plastic forming method in which rotating metal material is pushed by a roller to form a product. It is suitable for production of a wide variety of products in small quantities due to low cost forming dies. We have achieved fabrication of non-axisymmetric shapes by using robot technology, which was 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 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, has played a key role in the research activity. Decision-making has reflected Three-actuality theory, which values actual field site, actual material, and actuality. We have added the increase of customer satisfaction to the criteria of value and have set the sales activities as a part of the research.
