What is the working principle of slow wire cutting machine, what are the differences between fast wi

The slow wire cutting machine uses copper wire as a tool electrode, generally moves in one direction at a lower speed, applies an impulse voltage of 60 300V between the copper wire and the workmade materials such as copper, steel or cemented carbide, and maintains a gap of 5 50um, and the gap is filled with insulating medium such as ionizer water (close to distilled water), so that spark discharge occurs between the electrode and the workpiece, and the instantaneous high temperature of the electric spark can make the local metal melt and oxidize, and be consumed and corroded by each other, and electro-etch countless small pits on the surface of the workpieceThrough the monitoring and control of NC control, the servo mechanism executes to make this discharge phenomenon uniform, so that the workpiece is processed, so that it becomes a product that meets the required size and shape accuracy.

Extension of knowledge points:

Wire cutting machine is a kind of wire EDM machine, which uses a thin metal wire (called electrode wire) that moves continuously as an electrode to erode the metal and cut the workpiece by pulse spark discharge. It is mainly used for processing a variety of complex shapes and precision and fine workpieces.

Wire cutting is the use of continuously moving thin metal wire (called electrode wire) as an electrode to perform pulse spark discharge on the workpiece to ablate the metal and cut the forming. 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 electrode wire is no longer used after discharge, and the work is stable, uniform, small jitter, and the processing quality is good. Moreover, the advanced power supply technology realizes high-speed processing, and the maximum productivity can reach 350mm2 min

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 surface roughness of the workpiece processed by the slow wire cutting machine can usually reach Ra= and above, and the roundness error, straight line error and size error of the slow wire cutting machine are much better than that of the wire cutting machine, so when processing high-precision parts, the slow wire cutting machine has been widely used.

Wire cutting belongs to the category of electrical processing, invented by the former Soviet Union, China is the first country used for industrial production, at that time by Fudan University and Suzhou Changfeng Machinery Factory cooperation production is the earliest model called Fudan type, we have developed a fast wire system (HS) on this basisEurope, the United States and Japan have developed the Slow Walking System (LS).

The main differences are: 1, tungsten molybdenum alloy wire is used in China, and brass wire is used abroad; 2. China uses saponification working liquid, and foreign countries use deionized water; 3. China's wire walking speed is about 11 meters per second, and 3 5 meters in foreign countries, 4. Our electrode wire is reused until the wire is broken, and it is no longer reused after going abroad, 5. Our precision is not as high as abroad.

First of all, the speed of wire walking, the speed of fast wire walking is greater than or equal to, the common value is 6 to 10m s, and the speed of slow wire cutting is less than or equal to, the common value is to; The second is the working state of the electrode wire, and the fast wire cutting machine tool is a reciprocating wire supply and repeated use. The slow wire cutting machine is a one-way moving line and is used at one time. The electrode wire material of the fast wire cutting machine tool is molybdenum wire and tungsten-molybdenum alloy, while the wire cutting wire is made of brass, copper, copper as the main alloy or electrode wire of plated composite material.

Smuggling cutting machines, drilling machines, drilling machines, etc., the first to promote Suzhou Longkai Electromechanical Technology. Because the company's main spinneret die, CNC drilling machine, CNC perforating machine, fast wire cutting, wire cutting, turret milling machine, surface grinder, EDM molding machine and other mechanical and electrical equipment are exported to all over the world, self-operated and first-class import and export business of various commodities and technologies (except for commodities and technologies that are restricted or prohibited from import and export by the state), and the quality is guaranteed.

The differences between fast wire cutting and slow wire cutting are:The speed of wire walking, the working state of the wire, the material of the wire, the method of threading, and the length of the working wire.

First, the speed of wire walking:1. The cutting speed of fast wire is greater than or equal to, and the common value is 6 to 10 ms.

2. The cutting speed of slow wire cutting is less than or equal to. Commonly used values to.

Second, the working state of the electrode wire:1. The fast wire cutting machine tool is a reciprocating wire supply and is used repeatedly.

2. The slow wire cutting machine is one-way moving and one-time use.

3. Electrode wire material:1. The electrode wire material of the fast wire cutting machine tool is molybdenum wire and tungsten-molybdenum alloy.

2. The slow wire cutting is made of brass.

Copper, copper-based alloys, or electrode wires of composite materials.

Fourth, the way of threading:1. The threading method of fast wire cutting can only be manual.

2. The slow wire cutting and threading method can be manual or automatic.

5. Length of working electrode wire:1. The length of the working electrode wire is hundreds of meters.

2. The length of the working electrode wire for slow wire cutting is several kilometers.

The above content refers to Encyclopedia - Fast Wire.

Encyclopedia - Slow wire cutting.

First, the speed of wire walking:The cutting speed of fast wire is greater than or equal to, the common value is 6 to 10m s, while the speed of slow wire cutting is less than or equal to. Commonly used values to.

Second, the working state of the electrode wire:The fast wire cutting machine is a reciprocating wire supply and is used repeatedly. The wire-cutting machine is one-way moving and one-time use.

3. Electrode wire material:The electrode wire material of the fast wire cutting machine tool is molybdenum wire and tungsten molybdenum alloy, while the wire cutting wire of slow wire cutting is the electrode wire of brass, copper, alloy with copper as the main body or plating composite material.

Four: electrode wire diameter. The diameter of the electrode wire of the fast wire cutting machine tool is to, and the diameter of the electrode wire of the slow wire cutting wire is to, and the diameter of the electrode wire of the slow wire cutting is to, and the common value diameter is .

Five: threading method. The threading method of fast wire cutting can only be manual, while the threading method of slow wire cutting can be manual or automatic.

Six: the length of the working electrode wire. The length of the working electrode wire for fast wire cutting is hundreds of meters, while the length of the working electrode wire for slow wire cutting is several kilometers.

Seven: electrode wire vibration. The electrode wire of fast wire cutting vibrates greatly, while the electrode wire of slow wire cutting vibrates less.

Eight: electrode wire tension. The tension of the electrode wire of the fast wire cutting is fixed after the wire is loaded, while the tension of the electrode wire of the slow wire cutting is adjustable after the wire is loaded, usually up to 25.

Nine: the structure of the wire transportation system. The structure of the wire transportation system of the fast wire cutting machine tool is simple, while the structure of the moving wire system of the slow wire cutting machine tool is more complex.

Ten: Pulse power supply. The open circuit voltage of the fast wire cutting machine tool is 80 100V and the working current is 1 5A, while the open circuit voltage of the slow wire cutting machine tool is 300V and the working current is 1 32A.

Eleven: working fluid. The working fluid of the fast wire cutting machine tool is an emulsion or water-based working fluid, while the slow wire cutting machine tool is deionized water, and kerosene is used in some cases.

Twelve: resistivity of working fluid. The resistivity of the working fluid of the fast wire cutting machine tool is, while the resistivity of the working fluid of the slow wire cutting machine tool is 10 100.

Thirteen: guidewire mechanism type. The type of guide wire mechanism of fast wire cutting machine tool is to use guide wheel, which has a short life, while the type of working liquid guide wire mechanism of slow wire cutting machine tool is to use a guide and have a relatively long life.

Fourteen: It's not the same. Fast wire cutting is cheap, and slow wire cutting is expensive.

Not a concept. EDM machine tools are specifically divided into EDM forming machine tools and EDM wire cutting machine tools. The processing principle of the two is the same, both of which use the current positive and negative electrode contact discharge to produce high temperature to melt the metal, so as to achieve the purpose of cutting.

Wire cutting machine tools are divided into fast wire walking and slow wire walking. As the name suggests, it is distinguished by the speed of the electrode wire movement. Fast walking wire is generally used as an electrode wire for recycling. The processing efficiency is relatively high, and the accuracy is low.

Copper wire is used as the electrode wire, which has low processing efficiency and high precision, and generally needs to be cut 3-4 times. High processing costs. Wire EDM uses electrode wires to reciprocate and cut parts like a saw. The disadvantage is that only parts that are connected up and down can be machined.

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 wire passing does not mean that the wire travel speed is between high and low speeds, but the composite wire cutting machine, that is, the principle of wire walking 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 small, 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.

Answer: Hello, I'm glad to answer for you, 1, the accuracy is different: fast wire refers to the molybdenum wire walking back and forth, which is more economical than molybdenum wire, low precision. The medium wire running speed reduces the running speed of the molybdenum wire, and also reduces the jitter during the processing of the molybdenum wire, and improves the accuracy and surface gloss of the workpiece.

2. The working principle is different: the fast wire uses a continuously moving molybdenum wire (called electrode wire) as an electrode to carry out pulse spark discharge to ablate the metal and cut the workpiece. Medium wire is an upgraded product of fast wire, so it can also be called:

The processing speed of fast wire, which can be cut many times, is close to that of slow wire, and the quality of processing also tends to be slow. The wire walking speed is between 1 12m s and can be adjusted as needed.

3. Different application fields: fast wire is mainly used to process various workpieces with complex shapes and precision and fineness. In the early stage of use, the accuracy and surface gloss of the cutting workpiece are improved compared with fast wire cutting.

With the passage of time, the processing effect of wire cutting gradually weakens.