Making turbine or compression blade blanks

摘要

The invention is particularly intended for manufacture of large blades or vanes with antivibration platforms and double-root blades and vanes used in aircraft engines. A die set for hot shaping e.g. super plastic of the blank 18, comprises a male die (1) mounted on a top platen (7) of the die set for reciprocation relative to the blank (18) and for rotation in the plane of its reciprocation. In the initial position of pressing, the shaping surface of the male die (1) extends at an angle to the longitudinal axis of the blank (18). The female die (10) of the die set is mounted on a bottom platen (13) and includes a stationary bottom portion and a ring (11) movable relative to this bottom portion by rods (12) connected to the bottom ejector of the press. The dimensions of the components of the press are selected for the travel of the rods (12) to exceed the travel of the male die (1), to provide for ejection of the workpiece.