Abstract:
The invention relates to an electrical discharge machine (EDM) (1) for machining a conductor element such as a metal piece, the machine comprising a cutting wire (5) that is paid out from an upstream coil (6) to a downstream reception member. The machine (1) comprises a carrier means (13) that is provided with an orifice (100) for the metal piece to pass and is equipped with guiding means (18, 18'), such as a plurality of return pulleys (18, 18') for said cutting wire (5). It further relates to an improvement of a method for electrical discharge machining. Through simple, reliable and inexpensive means, the invention allows producing tridimensional parts on conventional wire cutting machines. It also allows the EDM to increase its capacity and execution speed. Another aspect of the invention is related to a method of machining a conductor element. This method is characterized in that it comprises a step of guiding the cutting wire (5) by guiding it to multiple tangent points around of the conductor element. The multiplication of tangent points results in higher machining speeds that are directly proportional to a number of passes of the cutting wire (5).