Electric discharge machine with changing processing parameters

An electrical discharge machine that infuses a processing liquid in a gap between a wire and a workpiece and processes the workpiece using predetermined processing parameters, said electrical discharge machine comprising:

• processing parameter storage means that stores standard processing parameters;
• means that stores a relationship between a nozzle height and liquid flow rate;
• means that determines rate of liquid flow during rough processing based on the relationship;
• and
• liquid flow rate changing means that changes a liquid flow rate parameter among the processing parameters, wherein the workpiece is processed using the processing parameters changed.

An electrical discharge machine that infuses a processing liquid in a gap between a wire and a workpiece and processes the workpiece using predetermined processing parameters, said electrical discharge machine comprising:

• processing parameter storage means that stores standard processing parameters;
• means that stores a relationship between a nozzle height and wire tilt;
• tilt correction value determining means that determines the wire tilt during processing based on the relationship;
• and
• tilt correction value changing means that changes a tilt correction value parameter among the processing parameters, whereby the workpiece is processed using the processing parameters changed.

An electrical discharge machine that infuses a processing liquid in a gap between a wire and a workpiece and processes the workpiece using predetermined processing parameters, said electrical discharge machine comprising:

• processing parameter storage means that stores standard processing parameters;
• means that stores a relationship between nozzle height and wire shift;
• shift correction value determining means that determines the wire shift during processing based on the relationship;
• and
• shift amount changing means that changes a wire shift amount parameter among the processing parameters, whereby the workpiece is processed using the processing parameters changed.

An electrical discharge machine that infuses a processing liquid in a gap between a wire and a workpiece and processes the workpiece using predetermined processing parameters, said electrical discharge machine comprising:

• processing parameter storage means that stores standard processing parameters;
• nozzle distance detection means that detects a processing state in a first processing step and detects a nozzle distance from the processing state detected;
• and
• processing parameter determining means that determines the processing parameters for subsequent processing steps based on the nozzle distance detected, wherein the workpiece is processed using the determined processing parameters.