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US 2019/0270153 A1Published application
Dual cathode tooling device for electroerosion
AssigneesMetalsa S.A. De C.V., La Corporacion Mexicana De Investigacion En Materiales, S.A. De C.V.
InventorsJesus Manuel Orona Hinojos, Melvyn Alvarez Vera, Pedro Perez Villanueva, Rene Javier Hinojosa Garza
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Abstract
Electroerosion devices and methods for performing electroerosion machining are disclosed. The electroerosion devices may perform simultaneous electrical discharge machining and pulsed electrochemical machining (S-ED/PEC) through the use of at least two different types of electrodes and a quasi-dielectric working fluid.
Claims20
An electroerosion device comprising:
- an electrode assembly defining a central axis, the electrode assembly comprising a first electrode and a second electrode, the second electrode having a first open axial end to receive the first electrode and a second axial end that is at least partially closed by an end wall;
- a fluid supply containing a working fluid having a resistivity from about 0.01 MΩ·cm to about 1.5 MΩ·cm;
- a working apparatus configured to translate the electrode assembly relative to the workpiece;
- a power supply for electrically powering the electrode assembly;
- and
- a control system configured to control the power supply and the working apparatus.
3 more elements
An electroerosion machining method, the method comprising:
- driving an electrode assembly towards a workpiece, wherein the electrode assembly comprises a first electrode and a second electrode, the second electrode having a first open axial end to receive the first electrode and a second axial end that is at least partially closed by an end wall;
- supplying an electrical current between the electrode assembly and the workpiece while feeding a working fluid from a fluid supply through a gap defined therebetween, wherein the working fluid has a resistivity from about 0.01 MΩ·cm to about 1.5 MΩ·cm and comprises NaBr, NaCl, KCl, Na2SO4, HCl or combinations thereof;
- and
- performing electrical discharge machining (ED), pulsed electrochemical machining (PEC), or a combination thereof.
1 more element
Dependencies are inferred from the claim text.