Collar drawing using a urethane pad

A new process for the forming of a triangular flange in hollow shafts from Ti6Al4V alloy

“…Another method of hollow products forming is extrusion of the flange with application of a flexible ring [6,7]. A semifinished product used in this method is a sheet ring with a hole cut in the middle.…”

Recent developments in friction-assisted sheet metal forming processes

“…Collar drawing using a urethane pad as shown schematically in Fig. 11 is being developed presently [14].…”

Investigations into collar drawing using urethane pads

“…The present process [7], an application of the well known Maslennikov's technique for drawing very deep cups produces flanged collars with a substantially longer tubular part compared with that produced in conventional collar drawing: Fig. 1 shows a schematic diagram of the tooling used for repeated squeez- * Corresponding author.…”