How to calculate the cost of WEDM?

1, WEDM fee, you need to calculate the area of WEDM first, that is, the contact area between molybdenum wire and parts, and multiply the area by the unit price;

2. For example, cut a steel plate with a thickness of 20mm, a length of 700mm and a width of 50mm along the length direction, with a linear cutting area of 700 * 20 = 14000 mm 2 and a linear cutting area of 50 * 20 =1000mm2 along the width direction;

3. The specific unit price varies from region to region.

Extended data:

Low-speed unidirectional WEDM；;

The electrode wire of low-speed WEDM uses copper wire as the tool electrode, and generally moves in one direction at a speed lower than 0.2 mm/s. A pulse voltage of 60~300V is applied between the copper wire and the processed material such as copper, steel or superhard alloy, and a gap of 5~50um is maintained, and the gap is filled with insulating media such as deionized water (close to distilled water).

Spark discharge occurs between the electrode and the workpiece, which consumes and corrodes each other and etches countless pits on the surface of the workpiece. Through the monitoring and control of numerical control and the execution of servo mechanism, this discharge phenomenon is uniform, so that the workpiece is processed into a product with the required size and shape accuracy.

At present, the accuracy can reach 0.00 1mm and the surface quality is close to the grinding level. The electrode wire is not used after discharge, and the resistance-free reverse electrolysis power supply is adopted, generally with automatic threading and constant tension device. The work is stable, uniform, small jitter, high machining accuracy and good surface quality, but it is not suitable for machining large-thickness workpieces. Because the machine tool is precise in structure, high in technology, high in price and high in use cost.

Baidu encyclopedia -WEDM