剪斷스피닝 加工의 上界解析 = A Upper-bound Analysis for Shear Spinning

국문 초록 (Abstract)

剪斷스피닝 加工에 있어서 變形에너지 理論의 上界解析法을 導入하여 加工을 求하였다.
Von Mises 材料로 假定하여 얻어진 結果는 롤러의 移送速度 및 코너半經이 減少할수록, 맨드럴의 圓錐半角이 클수록 加工 接線力은 減少하였고, 加工限界가 向上되는 파라메터가 되었다.
提案된 解析의 結果를 Kobayashi의 解와 比較하였고 아주 비슷한 結果를 얻었다. 또한 單純剪斷理論에 의하여 提案된 加工 接線力과 比較 및 檢討하였다.

다국어 초록 (Multilingual Abstract)

The expression for the tangential force of a shear spinning was derived with the use of a upper-bound method in a deformation energy theory.
And the results obtained from assumptions of von Mises' material are as follows; the working tangential force is decreased with decreasing the feed and the radius of corner of a roller, and increasing the half angle of a mandrel.
A present theory also was very similar to Kobayashi's results.
In addition, the simple shear theory was discussed with the present theory.