Press and process for operating same

A method for operating a press (10), the press (10) comprising an upper tool (14) and a lower tool (15), which cooperate to shape a workpiece (11), with a work unit (32) that is controllable by a controller (31) that performs the shaping process of the workpiece (11) on the basis of press process values (A1 through An), the controller (31) having a composition matrix (34) stored in it, which contains an individually changeable function (fij) for each of the at least one press process values (A1 through An) and for each of the at least one workpiece parameter (P1 through Pm), this individually changeable function (fij) describing the relationship between the respective press process value (Ai) and each workpiece parameter (Pj) of the at least one workpiece parameter (P1 through Pm), and the at least one workpiece parameter (P1 through Pm) characterizing the workpiece (11) that is to be shaped and/or that has been shaped, the method for operating the press (10) comprising the following steps:

• determining the press process values (A1 through An) on the basis of all functions (f11 through fnm),
• outputting to the work unit (32) the determined press process values (A1 through An), and,
• performing the shaping process on the workpiece (11) by the work unit (32) on the basis of each of the current press process values (A1 through An).