Aluminum 6061 is a common aluminum alloy material with medium strength, good corrosion resistance and welding performance, which is widely used in aviation, aerospace, automotive, electronics, construction and other fields. In the manufacturing process, Polishing is a key step to improve the appearance quality and corrosion resistance of 6061 aluminum parts. In this paper, we will discuss the polishing of 6061 aluminum parts, introduce the polishing process, methods and precautions.

First, 6061 aluminum polishing process

1. Rough polishing: rough polishing is mainly used to remove the oxide film on the surface of the aluminum parts, trachoma, bubbles and other defects, improve surface finish. Commonly used coarse polishing agents are chromium oxide, silicon carbide and so on. When polishing, the polishing agent needs to be evenly coated on the surface of aluminum parts, using appropriate pressure and speed for polishing.

2. Middle polishing: middle polishing is mainly to further remove the traces left by rough polishing, improve the surface finish. Commonly used in the polishing agent has aluminum oxide, zirconium oxide and so on. Polishing method is similar to rough polishing, but the pressure and speed is smaller.

3. Fine polishing: fine polishing is to obtain a higher surface finish and mirror effect. Commonly used fine polishing agents are diamond powder, cerium oxide and so on. When polishing, you need to use less pressure and speed to avoid scratches and damage.

Second, 6061 aluminum polishing methods

1. Hand polishing: hand polishing is suitable for small quantities, complex shape of the aluminum parts. The operator needs to master certain skills to ensure that the polishing effect. The main tools for manual polishing are polishing wheel and polishing cloth.

2. Mechanical polishing: mechanical polishing is suitable for large quantities, the shape of simple aluminum parts. Common mechanical polishing equipment are polishing machines, polishing wheels and so on. Mechanical polishing can improve productivity and reduce labor intensity.

3. Chemical polishing: chemical polishing is through a chemical reaction to remove the oxide film on the surface of aluminum and dirt, improve surface finish. Chemical polishing agent has acid, alkali, salt and so on. Chemical polishing is suitable for complex shapes, can not use mechanical polishing of aluminum parts.

Third, 6061 aluminum polishing notes

1. Selection of polishing agent: according to the material, shape and polishing requirements of aluminum parts, select the appropriate polishing agent. Different polishing agents on the corrosion of aluminum parts, polishing effect and environmental protection are different.

2. Polishing pressure and speed control: polishing pressure and speed have a greater impact on the polishing effect. Too much or too little pressure and speed will lead to poor polishing. Operators need to adjust the pressure and speed according to the actual situation.

3. Good care of polishing equipment: polishing equipment is the key to ensure the polishing effect. Regular inspection, maintenance and replacement of polishing wheels and other equipment to ensure its normal operation.

4. Safety protection: During the polishing process, the operator needs to wear good protective equipment, such as gloves, masks, glasses, etc., to prevent the polish from harming the body.

In short, 6061 aluminum polishing can improve the appearance of quality and corrosion resistance, to extend the service life. In the actual Operation process, according to the material, shape and polishing requirements of aluminum parts, choose the appropriate polishing process and method, and pay attention to the choice of polishing agent, pressure and speed control, equipment maintenance and safety protection. Only in this way can we obtain the ideal polishing effect.