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Wire Cutting Molybdenum Wire 0.18mm Molybdenum Wire
1. Molybdenum Wire 0.18 mm Description of Wire Cutting Molybdenum Wire:
Molybdenum wire with a diameter of 0.18 is referred to as 0.18 wire cutting molybdenum wire. It is frequently referred to as wire EDM molybdenum wire since wire EDM machine tools frequently employ it. An EDM wire cutting machine must be used for cutting wire. The basic physical principle is that free positive ions and electrons accumulate in the field, and soon form an ionized conductive channel. A current is formed between the two plates, resulting in countless collisions between particles, forming a The plasma area, which quickly rose to high temperatures of 800 to 1200 degrees, instantly melted some material on the surfaces of the two conductors. Therefore, the wire cutting machine has strict requirements on molybdenum wire, such as Mo content of not less than 99.3%, good tensile strength, low elongation, large crimp rate, uniform wire diameter, and no oxide layer on the surface.
2. Characteristic Of Wire Cutting Molybdenum Wire 0.18mm Molybdenum Wire:
Electrical Characteristics:
Modern wire cutting power supplies place strict requirements on the electrode wire. It needs to withstand large cutting currents of over 700 amps peak or 45 amps average, and the energy transfer must be very efficient to provide the high frequency pulsed current required to achieve high surface finishes (above 0.2Ra). The conductivity or resistance of the electrode wire determines this. Copper is one of the materials with the highest electrical conductivity, and it is used as a benchmark against which other materials are measured. The conductivity of copper is marked as 100% IACS (International Annealed Copper Standard), while the conductivity of brass is 20%.
Mechanical properties:
Molybdenum wire has the characteristics of good tensile strength, low elongation, large crimp rate, and consistent wire diameter, which can well meet the requirements of wire cutting machines for the mechanical properties of electrode wires.
Geometric characteristics:
Wire-cut molybdenum wire has high efficiency and high precision. The wire cutting machine requires the electrode wire to have geometric characteristics with minimal error. The molybdenum wire electrode wire made by the gem drawing die has smooth surface, excellent roundness and wire diameter tolerance. For the characteristics of +/-0.001mm.
Thermophysical properties:
The thermophysical properties of the electrode wire are the key to improving cutting efficiency. Molybdenum wire has thermophysical properties such as high melting point, high temperature resistance and corrosion resistance, so it is widely used in wire cutting machine tools.
3. Molybdenum wire used in wire cutting machine tools has the following advantages:
1). Good tensile strength;
2). High surface finish, good chemical stability and high cutting precision;
3). Small elongation and small tight wire;
4). The crimp rate is large, the wire diameter is consistent, the wire is not easy to break, and the service life is long;
5). The high frequency power can be increased to improve the roughing efficiency;
6). Accurate measurement, vacuum packaging, prevent oxidation and mildew, and can be stored for a long time.
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