GMPM wire for wire cutting, Model 1.1, and GMHI wire, Model 1.2, are used for cutting and processing non-ferrous metals, steel, and magnetic materials. They feature high strength, excellent discharge performance, high surface finish, fast cutting speed, and long service life.
Tensile strength of molybdenum wire: Tensile strength is a measure of a material's ability to resist breaking under radial loads. It is measured by the weight that a unit cross-sectional area can support, such as in the British system as PSI (pounds per square inch) or in the metric system as N/mm² (newtons per square millimeter). Copper is a material with low tensile strength (245N/mm²), while molybdenum has high tensile strength (1930N/mm²). The tensile strength of wire depends on the material chosen, as well as the heat treatment and stretching process. Wires are sometimes categorized as "soft wire" and "hard wire," each with its advantages for different equipment and applications.

The diameter of molybdenum wire directly affects processing accuracy and efficiency. Smaller-diameter molybdenum wire can be cut in finer paths, suitable for precision work, but it has lower strength and is prone to breakage. Larger-diameter molybdenum wire can withstand high loads, ideal for high-intensity processing tasks, but may compromise some precision. Therefore, when selecting the diameter of molybdenum wire, it is necessary to decide based on specific processing requirements.

The diameter of wire EDM tungsten wire typically ranges from 0.12 to 0.20 millimeters, which is a standard size. The diameter of molybdenum wire available on the market can be as small as 0.1 millimeters, or as large as 0.3 millimeters. These smaller or larger wires are mainly used for special requirements or processing of special materials.

Electrical properties of wire EDM tungsten wire:
Modern wire-cutting power supplies place stringent requirements on the wire. They must withstand high cutting currents peaking over 700 amperes or averaging over 45 amperes, with efficient energy transmission to provide the pulse current needed to achieve high surface finish (over 0.2Ra). This depends on the wire's resistance or conductivity. Copper is one of the materials with high conductivity, used as a benchmark for other materials. The conductivity of copper is measured in IACS (Annealed Copper Standard), while brass has a conductivity of 20%.
In use, molybdenum wire is prone to deformation and breakage, so avoid bending the wire during installation. If it's accidentally bent, be sure to cut off the bent section to prevent breakage during processing. The wire cutting fluid also directly affects the performance of the molybdenum wire. Over time, the cutting fluid will turn black and should be replaced promptly.