One-way successive plate cross wedge rolling machine

Abstract

In our last paper (Sci China Ser E-Tech Sci, 2009, 52(11): 3117–3121) we designed the precision forming machine with rolling plate CWR (cross wedge rolling). This kind of machine colligates the advantages of high rigidity and small floor space for roller CWR machine and those of simple die manufacture and high precision for plate CWR machine. At the same time, it abandons the shortcomings of complex die manufacture and poor precision for roller CWR machine, and those of poor rigidity and large floor space for plate CWR machine. During rolling, the upper and lower rolling plates of the machine make reciprocating slide toward or away from each other, so the inertial forces should be overcome, which will cause great energy loss, besides, large floor space is needed when the rolled workpiece is large. In order to solve the above problems, this paper presents the one-way successive plate CWR machine, whose rolling plates need not make reciprocating slide. Hence, it has high energy utilization efficiency and production efficiency. Furthermore, the roll scale can be removed automatically. In particular, the machine can produce large axisymmetrical workpieces.