Explore the principle and application of electrolytic polishing and magnetic polishing

This paper mainly introduces the principle, characteristics and Application areas of electrolytic Polishing and magnetic polishing, and comparatively analyzes the advantages and disadvantages of the two polishing technologies, so as to provide reference for the selection of suitable polishing methods in actual production.

I. Introduction

With the rapid development of China's manufacturing industry, the requirements for the surface quality of the workpiece are getting higher and higher. Polishing technology as an important means to improve the surface quality of the workpiece, has been widely used. At present, the common polishing methods are mechanical polishing, chemical polishing, electrolytic polishing and magnetic polishing. Among them, electrolytic polishing and magnetic polishing have unique advantages and have gradually become a research hot spot. This paper will focus on electrolytic polishing and magnetic polishing to discuss.

Second, electrolytic polishing

1. Principle

Electrolytic polishing is in the electrolyte, through the current on the workpiece anodic dissolution, so that the surface of the workpiece to produce a layer of oxide film, and then realize the polishing effect. Electrolytic polishing process, the workpiece as the anode, the polishing solution as the electrolyte, the cathode is usually used stainless steel plate.

2. Characteristics

(1) Fast polishing speed, high efficiency;

(2) Polishing surface is smooth and high gloss;

(3) Wide range of Application, can polish a variety of metals and alloys;

(4) Simple operation, easy to realize automation;

(5) Small environmental pollution, in line with the requirements of green production.

3. Application fields

Electrolytic polishing is widely used in aerospace, automotive, electronics, optics, jewelry and other industries for precision parts processing.

Third, magnetic polishing

1. Principle

Magnetic polishing is to put the workpiece into the polishing machine equipped with magnetic abrasives, using the magnetic field to guide the abrasives, so that the abrasives grind the surface of the workpiece, so as to achieve the polishing effect.

2. Characteristics

(1) High polishing efficiency and fast grinding speed;

(2) Uniform polishing, no dead angle;

(3) Low abrasive consumption and low cost;

(4) Applicable to the polishing of complex shape workpieces;

(5) Low noise, low environmental pollution.

3. Application areas

Magnetic polishing is suitable for precision parts processing in aerospace, automotive, medical equipment, clocks and watches and other industries.

Comparative analysis

1. Polishing effect

Electrolytic polishing surface quality is higher, and the gloss is better than magnetic polishing; magnetic polishing is suitable for complex shaped workpieces, uniform polishing, no dead ends.

2. Polishing speed

Electrolytic polishing is faster and more efficient than magnetic polishing.

3. Scope of application

Electrolytic polishing is suitable for all kinds of metals and alloys; magnetic polishing is suitable for complex shape workpieces.

4. Environmental impact

Two polishing methods of environmental pollution is small, in line with the requirements of green production.

V. Conclusion

Electrolytic polishing and magnetic polishing have their own advantages, enterprises in the choice of polishing methods, should be based on the workpiece material, shape and polishing requirements for comprehensive consideration. With the development of science and technology, electrolytic polishing and magnetic polishing technology will continue to improve, to provide better quality surface treatment solutions for China's manufacturing industry.