Special machining, also known as "non-traditional machining" or "modern machining method", generally refers to a machining method that uses energy such as electric energy, heat energy, light energy, electrochemical energy, chemical energy, acoustic energy and special mechanical energy to remove or increase materials, so as to realize material removal, deformation, performance change or electroplating.

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Principle of WEDM: The moving thin metal wire is used as the electrode, and the workpiece is cut and shaped by pulse spark discharge.

Fine molybdenum wire is used as cutting tool electrode, and the wire storage tube makes the molybdenum wire move alternately in forward and backward directions, and the machining energy is provided by pulse power supply. The working liquid medium is poured between the electrode wire and the workpiece, and the workbench performs servo feed movement in two coordinate directions of the horizontal plane according to the spark gap state according to a predetermined control program, thus synthesizing various curve trajectories and cutting and forming the workpiece.

The machining principle of WEDM is different from other metal cutting equipment. In fact, the machining principle is the corrosion phenomenon of electrolytic melting, which is an accurate chemical reaction, rather than the physical cutting of conventional cutting equipment. WEDM, also known as numerical control WEDM, is a special metal cutting equipment, which belongs to the field of electrical machining and is mainly used for precision machining in industrial production.

Introduction to the characteristics of wire cutting

1, there is no direct connection.

In many people's cognition, machining parts with machine tools will definitely involve direct contact between parts and machines, but for wire cutting, it uses the principle of electric erosion, so it will not involve direct contact. This way is very good for parts, because there is no contact and it will not affect the shape of the parts themselves. Therefore, in the whole processing process, the error is also very small.

2. Save costs and expenses

For the wire cutting we are using now, it has a very good feature, that is, it is not necessary to design a special electrode, and the electrode wire can be directly used as the electrode, which will save a lot of cost. Therefore, the maturity of a technology is not to increase its cost, but to reduce its cost, which is the purpose.