An Investigation on Conversion from Tacit Knowledge to Explicit Knowledge in Hand Lay-Up Fabrication Method

摘要

Hand lay-up fabrication has been used for forming composite structures since ancient times as it can be performed as long as the mold, skills, and materials are available. Hence highly specialized control technique and the tradition of skill are required to ensure the consistent stability of product quality. In this study, the authors thus conducted a motion analysis experiment using hand lay-up fabrication experts as subjects. The experiment, seemingly a new and only attempt in Japan, quantified techniques that are not visibly apparent and considered to be tacit knowledge. The mechanical properties and dimension stability of samples were measured, and their relationships with the motions of experts were also evaluated. It was also suggested mat highly specialized control techniques, the appropriate training of non-experts, and technical tradition are possible.