Method and device for optimized wire electrical discharge machining

An electrical discharge machining method on an electrical discharge machining machine (1) using an electrical discharge machining wire (4) packaged on a reel (5) forming an assembly with an identification data medium (11) in the form of a RFID radio tag data carrier in which is stored in digital form in specific locations identification data (ME) concerning said electrical discharge machining wire (4), wherein

• (a) the electrical discharge machining machine (1) receives, from the identification data medium (11), read identification data (ML) representative of the embedded identification data (ME) contained in the identification data medium (11),
• (b) the electrical discharge machining machine (1) adapts the machining parameters by taking account notably of the read identification data (ML) originating from the identification data medium (11) of the reel used for the machining,
• characterized in that:
• specific optimized machining parameters (PSP) are previously determined by machining tests carried out with electrical discharge machining wires of the same type as that of said electrical discharge machining wire (4) packed on the reel (5),
• said specific optimized machining parameters (PSP), and a control function (F), are previously stored in specific locations of storage means (17b) of the electrical discharge machining machine (1),
• standard machining parameters (PST) are previously determined by machining tests carried out with various electrical discharge machining wires,
• said standard machining parameters (PST) are previously stored in specific locations in the storage means (17b) of the electrical discharge machining machine (1),
• embedded control data (CE) are previously determined so as to be linked by the control function (F) to the embedded identification data (ME) of the electrical discharge machining wire (4), and are held in specific locations on the identification data medium (11),
• and in that, before the step (b):
• the electrical discharge machining machine (1) receives, from the identification data medium (11), read control data (CL),
• the electrical discharge machining machine (1) searches to see if the read identification data (ML) and the read control data (CL) are linked by the control function (F),
• if, and only if, the read identification data (ML) and the read control data (CL) are linked by said control function (F), the electrical discharge machining machine (1) provokes or authorizes the machining according to said specific optimized machining parameters (PSP),
• if the electrical discharge machining machine (1) determines that the read identification data (ML) and the read control data (CL) are not linked by said control function (F), the electrical discharge machining machine (1) provokes or authorizes the machining according to said standard machining parameters (PST).