An extruder for making a curved workpiece has an extruder frame including
a counterbeam extending transversely of an extrusion direction and formed
with a recess that is throughgoing in the direction and a tool recessed
in the recess and including a die having a downstream face spaced
upstream in the direction from a downstream side of the counterbeam. A
hot metal block is pressed against an upstream face of the die to extrude
a strand in the direction from the downstream face of the die.
Immediately downstream of the die a transverse external force is applied
to the strand to bend it. The tool includes a pressure plate that extends
completely through the counterbeam in the extrusion direction.