摘要
ＥＸＰＥＲＩＭＥＮＴＡＬＳＴＵＤＹＯＮＯＰＥＮ－ＤＩＥＣＯＬＤＥＸＴＲＵＳＩＯＮＦＯＲＭＩＮＧＴＥＣＨＮＩＱＵＥＦＯＲＩＮＶＯＬＵＴＥＳＰＬＩＮＥＳＨＡＦＴＳＥＸＰＥＲＩＭＥＮＴＡＬＳＴＵＤＹＯＮＯＰＥＮ－ＤＩＥＣＯＬＤＥＸＴＲＵＳＩＯＮＦＯＲＭＩＮ...
The deformation principles of the steady- state and the unsteady一state of open- die cold extrusion for involute spline shafts are analyzed by means of experiments. On one hand,based on the deformation principles of the steady- state, data for determining structural parameters of the die, the size of the billet and the constraint condition of this technique are given. On the other hand, according to the principles of the unsteady- state, data for modifying the shapes and sizes of the bil- lets are provided.
