@article{oai:soar-ir.repo.nii.ac.jp:00013023,
 author = {清野,  次郎 and 町田,  基},
 journal = {信州大学工学部紀要},
 month = {Dec},
 note = {The formability of fine sheets ranging from 0.5 mm to 0.1 mm has recently been discused. So-called conical cup test, developed by Prof. S. Fukui, is also applicable to fine sheet under suitable dimensions of tools and such dimensions for fiine sheets of Al, Cu and Mild Steel are shown. But the above-mentioned test is too difficult for fine and soft sheet, such as alminum of 0.1 mm in thickness, because the centering of the circular blank in the die hole is difficult. In the deep-drawing tests of fine sheets of Al, Cu and Mild Steel by means of the flat punch and conical die, the drawing limit for the conical die of 60 degrees is compared with that for 40 degrees. The result is that the drawing limit in the case of the conical die of 40 degrees is somewhat higher than that obtained for 60 degrees., Article, 信州大学工学部紀要 29: 107-112 (1970)},
 pages = {107--112},
 title = {極薄板のコニカルカップ試験},
 volume = {29},
 year = {1970}
}