Wire electric-discharge machine

A wire electric-discharge machine comprising:

• a wire electrode for machining a workpiece;
• a lower guide for supporting said wire electrode in a lower position;
• an upper guide for supporting said wire electrode in an upper position;
• two electrical supply dies respectively located in said lower guide and said upper guide so as to supply electricity to said wire electrode;
• and a lower wire guide holder having a two-layered structure with a space formed between the two layers, said lower wire guide holder comprising:
• a wire guide located in a central portion of said lower wire guide holder, wherein said wire guide has the same thickness as said lower wire guide holder, and wherein said lower wire guide holder and said wire guide are provided in a lower nozzle located in an upper portion of said lower guide and adapted to jet a working fluid;
• and
• a working-fluid supplying port for supplying the working fluid into the space in said lower wire guide holder, wherein said working fluid supplying port is provided in a lower layer portion of said lower wire guide holder.

A wire electric-discharge machine comprising:

• a wire electrode for machining a workpiece;
• a lower guide for supporting said wire electrode in a lower position;
• an upper guide for supporting said wire electrode in a upper position;
• two electrical supply dies respectively located in said lower guide and said upper guide so as to supply electricity to said wire electrode;
• and a lower nozzle, provided at an upper end of said lower guide, having an upper interior surface, wherein said upper interior surface is flat.