Dimensional Changes in Tube Swaging

The purpose of this study was to investigate changes in the wall thickness of tubes sunk by the rotary swaging process. The independent variables were: Workpiece material, original wall thickness of tube, die angle, die overgrind, and diameter reduction. The results indicated that of these five variables only the diameter reduction was a factor in wall-thickness increase. Material and other process variables did not appear to have appreciable effect within the range studied.