This paper describes the experience in teaching Astilleros Espanoles (AESA) steel fabrication workers the practical use of line heating (L/H) for accurate bending of plates, and the operational deployment of this technology in all shipyards in the group. This project is set within the developing dimensional accuracy improvement program, which is aimed at improving productivity, quality and allowing the implementation of a continuous improvement process. The approach used is for facilitating a systematic technology transfer from Japanese specialists, overcoming initial reluctance, promoting active participation with a commitment from workers and foremen, and assuring practical documentation of experiences in the form of a shop operating manual.