Analysis of Performance of Oil-Filled Inner Spiral Fin Moving Mandrel

In this paper, The lubrication characteristics of oil_filled inner spiral fin moving mandrel in spinning process was studied systematically. Compared with the traditional ones, there is the oil_filled behavior in spinning process of the oil_filled inner spiral fin moving mandrel. The axial drawing loads decrease with increase in the axial speed, especially with increase in the oil_filled pressure. The structures of ball stopper and taper entry din are better. Experimental results are consistent with the theoretical analyses.