In WEDM machine tools, different consumables are often selected according to different machine tools, while molybdenum wire and copper wire are commonly used consumables in WEDM. We all know that the models of WEDM include slow wire, fast wire and medium wire, so what model of WEDM should molybdenum wire and copper wire be used? What is the difference between them?
First of all, let's analyze the copper wire, which is generally divided into brass, red copper and phosphor copper. The copper content of brass wire is 65% and the zinc content is 35%; the pure copper content of copper wire is 99.8%; the copper content of phosphor copper wire is 85 ~ 90% and the tin content is 5 ~ 15%. They are all formed by hot rolling copper rod without annealing. In special cases, small size wire may require intermediate annealing, which can be used for mesh weaving, cable, copper brush filter, etc., so copper wire is generally used for slow wire cutting.
Then we analyze molybdenum wire. Molybdenum is a rare metal and an irreplaceable strategic material. Molybdenum has gray surface luster, dark gray powder and high melting point. Due to its special properties, molybdenum can improve the strength, wear resistance, heat resistance and weldability of steel. It has a wide range of applications and good prospects in metallurgy, agriculture, electrical, chemical industry, environmental protection, aerospace and other important departments. Due to the small expansion coefficient, high conductivity and good thermal conductivity of molybdenum wire, molybdenum wire is generally used for fast wire cutting and medium wire cutting.
The above is the difference between molybdenum wire and copper wire.
