Abstract: The deformation principles of
the steady-state and the unsteady-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 billets are provided.
Key words:
Involute spline shafts Open-die
extrusion Die angle
* This project is supported by Foundation of Ministry of
Machine-Building Industry . Manuscript received on April 12, 1995
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