@article{oai:kyutech.repo.nii.ac.jp:00004890, author = {Akiyama, Tetsuya and 秋山, 哲也 and 角保, 光義 and Terasaki, Toshio and 寺崎, 俊夫 and Kitamura, Takanori and 北村, 貴典}, issue = {1}, journal = {溶接学会論文集}, month = {Feb}, note = {To form curved surface, in-plane strain is introduced into a plate by using several methods such as line heating, press working and laser heating in shipbuilding and sheet metal working in forming nose shape for the shinkan-sen. Laser forming could be a potential useful method for sheet metal forming as well as press working. Curved surface is classified based on its features of primary curvature radius into two typical shapes, so called bowl and saddle. So, when we research some technique to form curved surface, at least two types of bowl and saddle shapes should be investigated. For the bowl shape, some researchers reported that initial curvature radius has no effect on the in-plane strain induced by laser heating. In this report, the effect of initial curvature on the in-plane strain induced by laser heating is investigated for the saddle shape. As a result, shrinkage distributions caused by in-plane strain were varied with different initial curvatures. In this phenomenon, bending moment acts a key role in both heating and cooling processes., 秋季全国大会, 平成20年9月10-13日, 北九州国際会議場, 福岡県}, pages = {61--66}, title = {レーザー加熱を用いた薄板鞍形成形時の収縮量に及ぼす初期曲率半径の影響}, volume = {27}, year = {2009}, yomi = {アキヤマ, テツヤ and テラサキ, トシオ and キタムラ, タカノリ} }