Principle 5 for the selection of working fluids in EDM

EDM is a large range, which is generally divided into: wire EDM, fine hole EDM and EDM EDM. The processing fluid selected for different processing processes is different.

Wire EDM wire EDM is to use saponification liquid as the working liquid; Wire EDM EDM is water or oil as the working fluid, fine hole discharge EDM is the use of pure water or spark oil, EDM molding processing used kerosene as the processing fluid in the early days, and spark oil is commonly used as the processing fluid today. All EDM applications have different requirements for processed products, and the selection of processing fluids also has special requirements.

Basically, spark oil is used!

Qiaomao Machinery believes that EDM:

1. The function of the working fluid, that is, the spark oil: it is to form a spark discharge channel, and quickly restore the insulation state of the discharge gap after the discharge is over;

2. Compress the discharge channel to increase the discharge energy;

a.Kerosene. b.Machinery oil.

c.Water. d.Special emulsion.

Correct answer: d

1. Insulating, conductive electrolyte.

It is difficult to produce fire and discharge.

2. Cooling and deionization, if the high temperature generated by the discharge returns to the insulated state when the dissipation is not in time, the arc discharge will be generated.

3. Take away the interpolar erosion products, and take away the erosion products in time under the action of the working liquid to avoid secondary discharge.

4. Other functions, such as rust prevention, interpolar washing, etc.

Pulsed power supply. The voltage applied to the discharge gap must be pulsed, otherwise, the discharge will become a continuous arc.

The so-called pulse power supply, actually.

It is an electrical circuit or device that emits an impulse voltage with sufficient energy.

mechanical part and automatic control system.

Working fluid purification and circulation system.

The function of the working fluid is to concentrate the energy, strengthen the processing process, and take away the heat and electroerosion products generated during discharge.

Working fluids. The system includes the storage and cooling of the working cavity liquid, the circulation and its regulation and protection, the filtration and the forced circulation system using the working liquid.

In wire-EDM machining, emulsions are divided into water-based emulsions and what.

Hello dear and happy to answer for you. In the wire cutting process of electric finch splitting spark, the emulsion is divided into water-based emulsion and emulsified oil, synthetic emulsion and microemulsion. Classification of lead wax emulsion General emulsion can be divided into two types:

1. The oil is dispersed in water, which is called the water skiing oil-in-the-water (O W) type, such as milk; 2. Water diverges in oil, called water-in-oil (WO) type, such as **emulsion. This type of emulsion, which is called O W or W O, is called a simple (ordinary) emulsion. I hope mine can help you and have a great day

Summary. Hello dear, happy to answer your <>

EDM is a machining method that cuts, drills, and bores metal materials according to the principle of electrical pulse discharge. Its process characteristics and application scope are as follows: Process characteristics:

1.Direct processing of hard materials, such as cemented carbide, ceramics, etc. 2.

High precision, surface ***, can obtain ultra-precision parts. 3.There will be no tool wear during the machining process, and there will be no damage to the quality of the workpiece such as chamfering and chips of the tool.

4.It can process workpieces with complex shapes, such as molds, stoppers, etc.

Illustrate the process characteristics and application scope of EDM.

Hello dear, happy to answer your <>

EDM is a machining method of cutting, drilling and boring on metal materials according to the principle of electrical pulse discharge. Its process characteristics and application scope are as follows: Process characteristics:

1.Direct processing of hard materials, such as hard coated gold, ceramics, etc. 2.

High precision, surface ***, can obtain ultra-precision parts. 3.There is no tool wear during machining, and no cracking macro will cause damage to the quality of the workpiece such as chamfering and chips.

4.It can process workpieces with complex shapes, such as molds, stoppers, etc.

2.Aerospace industry, such as bearing outer rings, turbo blades, etc. 3.

Automobile and machinery manufacturing, such as various drive shafts, gears, pistons, crankshafts, etc. 4.Electronic information industry, such as printed circuit boards and semiconductors of this mausoleum ceramics.

It should be noted that EDM requires the use of precision equipment and complex machining technology, and the processing cost of Senyanqi is relatively high, which is suitable for parts processing with high requirements for precision and surface quality.