In recent years, the accuracy requirements of machine tools for machine tool processing have been continuously improved with the continuous development of China's manufacturing industry. Among them, the precision requirements of wire cutting machine tools are the most urgent. In the online cutting industry, the mainstream “medium wire” is widely used in the fields of mold making, precision small parts, special materials, cams, forming tools and sample processing, because this machine is used to process certain parts. This not only saves time in making stamping dies, but also shortens cycle times and reduces production costs.
precision medium wire cutting machine picture
Why is the wire processing part broken?
In the process of machining the workpiece, it is inevitable that the wire breakage will occur. The main reasons may be as follows: the tension of the molybdenum wire is reduced; the diameter of the molybdenum wire is improperly selected; the molybdenum wire is oxidized due to poor quality or poor storage; The molybdenum wire stays in the working area for too long because the speed of the wire barrel is too slow; the wire rod and the conductive block have grooves on the surface for a long time; the working fluid is of poor quality or the concentration is not suitable; the working fluid is too dirty Lead to poor discharge of machining chips; improper selection of electrical parameters leads to excessive current; tracking is too tight, resulting in short-circuit localization and high temperature.
middle wire cutting picture
How to solve the problem when the wire processing part is broken?
Check the molybdenum wire tension; select the appropriate molybdenum wire diameter; replace the molybdenum wire; check the surface of the wire rod and the conductive block for dents; replace the working fluid, use the medium wire to cut the professional working fluid, reduce the wire consumption; Intermittent, use a working fluid suitable for thick cutting; adjust the feed potentiometer to stabilize the feed; adjust the pulse width to small, increase the intermittent gear, or reduce the number of power tubes.
middle wire molybdenum wire guide picture
What is the middle wire cutting?
The middle wire cutting is also known as the Chinese traditional wire-cutting EDM wire cutting. It is a method of continuously moving molybdenum wire (molybdenum wire) as an electrode to perform pulse spark discharge on the workpiece to etch metal. Cutting and forming. Its principle is to make multiple iterations of the workpiece. At the beginning, it was cut with faster wire speed and higher frequency. The last knife used a slower drum speed and a weaker high-frequency current to repair the light, thus improving the processing finish.
middle wire cutting tungsten carbide parts picture
Why can molybdenum wire be used for cutting in the middle of wire cutting?
The reason why molybdenum wire can be used for the middle wire cutting is because the molybdenum wire has high precision and the wire diameter tolerance can be controlled within 0 to 0.002 mm. Moreover, the molybdenum wire also has an ultra-high tensile strength, a small elongation, a small tightness, a high surface finish, a high cutting precision, a large crimp ratio, and a uniform wire diameter. It is also important that the molybdenum wire has a low rate of wire breakage, a high processing rate, and good stability, and can achieve stable long-term continuous processing. In addition, its high cost performance is also a point of consideration for manufacturers.
molybdenum wire for middle wire cutting picture
Of course, molybdenum wire has many other uses. For example, molybdenum wire can be used to produce high temperature resistant equipment such as brackets, guide bars, heating rods, and the like. It can also be used as a heating wire for heating high temperature furnace materials and scaffold materials, as well as for high temperature thermal fields in molybdenum furnaces and tube sockets.
