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| Q. |
The electrode wires are usually made form |
| A. | graphite |
| B. | iron |
| C. | nickel |
| D. | brass |
| Answer» D. brass | |
| Explanation: wire used in wire cut edm are usually made of brass – either zinc-coated or uncoated. brass wire can be purchased in different hardnesses and different diameters. zinc coated wire is used in machining high melting point workpiece materials | |
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