Multistage press and method for producing a formed part

A multi-stage press for solid forming of a wire section, comprising:

• a wire feed with a related apparatus for cutting to length, as well as
• a transfer device having grippers, for holding a wire section cut to length and for transfer of this section to subsequent forming stages,
• wherein means for partial heating of a wire section (81) are arranged on the side of the apparatus (3) for cutting to length that lies opposite the wire feed (2),
• wherein the wire feed (2), the forming stages (12), and the apparatus (3) for cutting to length can be controlled independently of one another,
• wherein the means for partial heating of a wire section (81) comprise an induction coil (4), and
• wherein the wire feed (2) is set up for temporary introduction of a wire section (81) into the induction coil (4), and the wire feed (2) comprises a servo-drive (21) for defined forward and backward movement of a wire section.

A method for the production of a formed part, in particular of a screw, using a multi-stage press,

• wherein a wire (8) is first heated on the end side,
• wherein the wire (8) is passed from a coil, by way of a wire feed (2), to an induction coil (4), where it is heated to a defined temperature on the end side, on a wire end section (82),
• wherein the wire (8) is passed to the induction coil (4) by way of a servo-drive (21), and
• wherein the wire (8) is moved into the induction coil (4) in accordance with the desired length of the wire end section (82) to be heated, and after the desired temperature has been reached, i.e. after the dwell time required for this purpose, it is moved out of the induction coil (4) again, subsequently a wire section (81) having a desired length is cut at a defined distance from the heated wire end section (82), and the partially heated wire section (81) achieved in this way is passed to multiple forming stages (12), one after the other, by way of a transfer device (7).