Copper Tungsten Foil Electrodes

Foils and EDM

With their favorable characteristics, copper-tungsten electrodes are readily used as electrodes in EDM. Copper-tungsten’s machinability and malleability make it ideal for cutting and shaping, lending these electrodes a great deal of flexibility. Sheets of copper-tungsten can be shaped and machined on the fly to meet changing machining demands, making these ideal for prototyping and stress testing applications. The electrical conductivity of copper-tungsten also ensures that power isn’t wasted in trying to overcome resistance.

Precision Foils

We are now capable of manufacturing copper-tungsten sheet to an unprecedented level of flatness. Our precision-machining methods allow us to achieve tolerances as tight as +/-0.00005” (+/-0.00127 mm). Quality can be assured with our calibrated and certified Johansson Mikrokator, a comparator gauge that can measure a surface’s deviation from a standard thickness to one one hundred thousandth of an inch. If you can’t spare a hair of inaccuracy, these foils are the way to go.

Our Foils

The following parts list is not representative of all available foils. We offer foils from 25mm to 600mm in width and height, with the minimum thickness being .05mm, or 50 microns. Alloy percentages go from 70% to 60% tungsten, and 30% to 40% copper.

Thickness

Length and Width

MOQ

0.0508mm / .002″

100mm / 4″

5 Pieces


0.0762mm / .003″

100mm / 4″

5 Pieces


0.1016mm / .004″

100mm / 4″

5 Pieces


0.1270mm / .005″

100mm / 4″

5 Pieces


0.1524mm / .006″

100mm / 4″

5 Pieces


0.1778mm / .007″

100mm / 4″

5 Pieces


0.2032mm / .008″

100mm / 4″

5 Pieces


0.2286mm / .009″

100mm / 4″

5 Pieces


0.2540mm / .010″

100mm / 4″

5 Pieces


0.2794mm / .011″

100mm / 4″

5 Pieces


0.3048mm / .012″

100mm / 4″

5 Pieces


0.3302mm / .013″

100mm / 4″

5 Pieces


0.3556mm / .014″

100mm / 4″

5 Pieces


0.3810mm / .015″

100mm / 4″

5 Pieces


0.4064mm / .016″

100mm / 4″

5 Pieces


0.4318mm / .017″

100mm / 4″

5 Pieces


0.4572mm / .018″

100mm / 4″

5 Pieces


0.4826mm / .019″

100mm / 4″

5 Pieces


0.5080mm / .020″

100mm / 4″

5 Pieces


0.5334mm / .021″

100mm / 4″

5 Pieces


0.5588mm / .022″

100mm / 4″

5 Pieces


0.5842mm / .023″

100mm / 4″

5 Pieces


0.6096mm / .024″

100mm / 4″

5 Pieces


0.6350mm / .025″

100mm / 4″

5 Pieces


0.6604mm / .026″

100mm / 4″

5 Pieces


0.6858mm / .027″

100mm / 4″

5 Pieces


0.7112mm / .028″

100mm / 4″

5 Pieces


0.7336mm / .029″

100mm / 4″

5 Pieces


0.7620mm / .030″

100mm / 4″

5 Pieces


0.7874mm / .031″

100mm / 4″

5 Pieces


0.8128mm / .032″

100mm / 4″

5 Pieces


0.8381mm / .033″

100mm / 4″

5 Pieces


0.8636mm / .034″

100mm / 4″

5 Pieces


0.8891mm / .035″

100mm / 4″

5 Pieces


0.9144mm / .036″

100mm / 4″

5 Pieces


0.9398mm / .037″

100mm / 4″

5 Pieces


0.9652mm / .038″

100mm / 4″

5 Pieces


0.9906mm / .039″

100mm / 4″

5 Pieces


1.0mm / .0394″

100mm / 4″

5 Pieces