What should be paid attention to when slow wire processing

Slow wire walking, also known as low-speed wire walking, is a kind of CNC machining machine tool that uses a continuously moving thin metal wire as an electrode to carry out pulse spark discharge on the workpiece, produce a high temperature of more than 6000 degrees, etch the metal and cut it into a workpiece.

Features: Because the wire cutting machine adopts the method of continuous wire supply of wire electrode, that is, the wire electrode is processed in the process of movement, so even if the wire electrode is lost, it can be continuously supplemented, so it can improve the processing accuracy of parts.

The electrode used in the slow wire is copper wire, the fast wire is molybdenum wire, and the fast wire is used reciprocatingly, and the slow wire can only be used once, of course, the slow wire machine is high, the processing cost is also high, and the quality of the processed product is also high, and the fast wire is the opposite.

Slow wire is a machine tool like a curium, which uses the electrode principle. It is used to cut metal, but the shape and position of his cut are controlled by a computer, and the accuracy is also very high, and the difference between a full walk and a line cut can be reached at the highest level.

What we need to pay attention to is that the "fast", "slow" and "medium" in fast wire, slow wire and medium wire do not refer to the actual cutting speed in processing. Slow wire walking is slow processing speed.

We often say fast wire and slow wire machine tools, and their division is divided according to the different running speed of the electrode wire. The earliest EDM wire cutting machine tools were divided into two categories according to the different running speeds of the electrode wires

One is the high-speed wire EDM wire cutting machine (WEDM-HS), which is referred to as fast wire cutting. The electrode wire is a fast reciprocating motion, the general wire walking speed is 8 10m s, the electrode wire can be reused, the processing speed is slow, and the fast wire walking is easy to cause the electrode wire to shake and stop when reverse, so that the processing quality decreases, it is the main type of production and use in China, and it is also the original EDM wire cutting processing mode in China;

The domestic fast-walking wire cutting machine tool is completely manual in operation and the environment is dirty.

The other type is the low-speed wire EDM machine (WEDM-LS), which is referred to as slow wire cutting. The electrode wire is slow unidirectional movement, the general wire walking speed is lower, the electrode wire is no longer used after discharge, the work is stable, uniform, small jitter, good processing quality, and the processing speed is fast, it is the main model produced and used in foreign and China's coastal areas.

The wire-cutting machine tool produced by Sodick company in Japan has high processing precision and easy operation.

The comparison between fast wire and slow wire in terms of machine tool and processing technology level can be seen in the following table.

In order to meet the needs of users, some large companies in China's mainland have introduced the advanced concept of international precision mold processing equipment and slow wire cutting technology on the basis of retaining the characteristics of fast wire cutting machine tools such as simple structure and low cost. Developed a wire-cutting machine (WEDM-CS) with an intelligent system that can realize multiple cuts.

The machine is more humane, convenient and has a wider range of application than fast wire. The "medium-speed wire walking" independently developed and produced in China not only has the moving speed of the electrode wire between "high speed" and "low speed", but also the processing quality is higher than that of the "high-speed wire walking machine" and close to the low-speed wire walking machine. However, the technology and accuracy of the wire is still limited, with the slow walking machine tool Ben Shi and the decline of the first line, whether the wire can be favored by users, it is worth paying attention to.

China's unique fast wire cutting machine (WEDM-HS), due to its simple structure, low cost, can meet the general process requirements, since the end of the sixties of the last century was successfully developed after the rapid development, has become the cheapest wire cutting equipment in the manufacturing industry. However, due to its processing quality problems have not been effectively solved, and with the continuous improvement of the technical level of the slow wire cutting machine (WEDM-LS) produced abroad, the development of the mold industry, which once made the Chinese proud of China's unique WEDM-HS, is now in a difficult development predicament, and it is difficult to meet the needs of mold development.

Not necessarily, the processing accuracy and working efficiency of slow wire are higher than that of fast wire, but its cost is also more expensive than fast wire.

Fast, and the process technology content is relatively high, the price of the product will be very high, and the sales speed is relatively fast, and the benefits are high.

Definitely, because its production is not as strict as slow wire walking, then the production is relatively fast.

Summary. <>

Hello dear, glad to ask your question Why is the processing accuracy of slow wire wire higher than fast wire walking? The advantage of slow wire is high precision and high efficiency, the disadvantage is that the machine and processing cost are high, the electrode wire is generally brass wire, used is a waste product, but also the use of resin and filter and so on. The fast filament wire is cut into low precision, the machine tool and processing cost are low, and the electrode wire is generally molybdenum wire, which can be recycled.

Why slow wire is more accurate than fast wire cutting.

Hello dear, glad to ask your question Why is the processing accuracy of slow wire wire higher than fast wire walking? The advantage of slow wire is high precision and high efficiency, the disadvantage is that the cost of the machine and the cover grinding is high, the electrode wire is generally made of brass wire, and it is a waste product after use, and resin and filter are also used. The fast filament wire is cut into low precision, the machine tool and processing cost are low, and the electrode wire is generally molybdenum wire, which can be recycled and used.

Hello, dear, thank you for your patience, the answer has been found for you, you check it out, ·· Thank you! <>

Thank you.

The differences between wire cutting fast wire and medium wire and slow wire are as follows:

State-of-the-art wire cutting machineHigh-precision finishing circuits employedIt is an effective technology to improve the straightness of the processed workpiece and make thick parts processedAccuracy is significantly improved；In order to carry out the micro-finishing of small fillets, narrow slits, narrow grooves and fine parts, high-quality CNC low-speed wire EDM machine tools can use electrode wires for cutting.

So-calledMedium slag wire transfer processing does not mean that the wire speed is between high speed and low speed, but the composite wire cutting machine, that is, the principle of wire cutting is to use high-speed (8-12ms) wire during rough machining, and low-speed (1-3ms) wire during finishing, so that the work is relatively stable, the jitter is blind, and the error caused by material deformation and molybdenum wire loss is reduced through multiple cuttings, so that the processing quality is also relatively improvedThe processing quality can be between high-speed and low-speed wire walking machines

Fast wire processing is due to the cutting processThe electrode wire runs at high speedAnd the name. Fast wire processing machine tool is China's original electrical processing machine tool, after decades of continuous improvement and development, has become an important processing means in the manufacturing industry. YesMeet the requirements of medium and low-grade mold processing and other complex parts manufacturing, occupies a considerable weight in the low-end market.

Slow wire is a kind of processing machine tool that uses a continuously moving thin metal wire (called electrode wire) as an electrode to carry out pulse spark discharge to abrode the metal and cut the workpiece. During slow wire processing, there is a loose contact light voltage discharge phenomenon between the electrode and the workpiece. When the flexible electrode wire is close to the workpiece to what is commonly considered a discharge gap (e.g. 8 10 m), no spark discharge occurs, and even when the electrode wire has touched the workpiece and the gap is no longer visible from the microscope, the spark is often not visible, and the normal spark discharge occurs only when the workpiece bends the electrode wire upwards and shifts it by a certain distance (a few microns to tens of microns).

At this time, the wire electrode is each given 1 m, and the discharge gap is not reduced by 1 m, but the electrode wire increases a little interlinear tension, and the workpiece increases a little lateral pressure. Based on this, it is believed that there is some kind of electrochemically generated insulating film dielectric between the electrode wire and the workpiece.

Introduction to Slow Wire Walking:

Slow wire is a kind of CNC machining machine tool that uses a continuously moving thin metal wire (called electrode wire, generally copper wire and molybdenum wire trace shed) as an electrode to carry out pulse spark discharge on the workpiece, produce a high temperature of more than 6000 degrees, etch the metal and cut it into a workpiece. The principle of slow wire processing is the phenomenon that there is a gap between the electrode and the workpiece, and the metal is continuously discharged to remove the metal.

Roughly the same as fast filament, the electrode wire of slow filament is a one-time use with high processing accuracy. The pulse power supply applies voltage to the missing parts and electrode wires in the field, resulting in spark discharge, which causes the workpiece to be melted and vaporized. Perform cutting.

Wire EDM is referred to as wire cutting. It is developed on the basis of EDM perforation and forming processing. It has not only enabled the development of the application of EDM, but also replaced the EDM perforation and forming process in some aspects.

Today, wire EDM machines account for the majority of EDM machines. The surface of the processed hunger blind is relatively rough.

Slow-walking wire is also a kind of wire cutting, which uses a continuously moving thin metal wire (called electrode wire) as an electrode to carry out pulse spark discharge to abrode the metal and cut the workpiece. It is mainly used for processing a variety of complex shapes and precision small workpieces, according to the running speed of the electrode wire, the EDM wire cutting machine is usually divided into two categories: one is the slow wire (also called the low-speed wire EDM wire cutting machine) electrode wire for low-speed unidirectional movement, the general wire speed is lower, the accuracy is up to the level, and the surface quality is close to the grinding level.

The finished surface is very smooth.