How to Choose Suitable Polishing and Abrasive Materials?

Tips for choosing abrasive materials

Abrasive materials for aluminum alloy hardware accessories

After stamping, stainless steel parts need to remove burrs and sharp edges. In this case, the effect of choosing white corundum abrasive materials is better than that of choosing resin materials for plastic abrasive materials. For die-cast zinc alloy hardware accessories or aluminum alloy hardware accessories, resin plastic abrasive materials should be used. If brown corundum abrasive materials are used, the product is prone to scratches.

Polishing and abrasive materials for hardware, plastic, and other materials

For parts made of materials such as iron, stainless steel, white iron, powder metallurgy (magnet) cores, aluminum alloy, zinc alloy, copper, plastic, etc., high alumina ceramic polishing stones with surface polishing, rough grinding, precision grinding, gloss polishing, fine grinding before plating, and excellent vibration should be used for grinding.

The role of grinding agents in the polishing and grinding process that cannot be ignored

In order to prevent rusting of various metal accessories, grinding agents with rust-proof function should be used for polishing and grinding. Grinding agents also have functions such as degreasing, cleaning, rust protection, lubrication buffering, and reducing grinding stone losses, making them the best choice for your grinding needs.

The role of brighteners

Each type of part has a corresponding bright effect. Therefore, brightening agents are used to make the product bright after grinding or during the grinding process. They can be used in various grinding machines and polishing machines as chemical additives for surface polishing of parts.

The most commonly used abrasive materials for abrasive tools

The most commonly used abrasive materials for abrasive tools are mainly brown corundum, white corundum, black silicon carbide, and green silicon carbide.

• Brown corundum has high toughness and is suitable for abrasive materials with high tensile strength, such as carbon steel, alloy steel, malleable cast iron, and hard bronze. White corundum has higher hardness than brown corundum and better cutting performance, suitable for grinding processes of quenched steel, high carbon steel, high-speed tools, and other materials.

• Black silicon carbide has high hardness, brittle and sharp, suitable for grinding and cutting materials with low tensile strength, such as cast iron, glass, ceramics, stone, refractories, etc.
  

• Green silicon carbide has higher purity than black silicon carbide and is suitable for grinding hard and brittle materials such as hard alloys, optical glass, gemstones, agate, etc.
  

Abrasive tools can be natural or artificial. In the mechanical industry, natural abrasive tools are commonly used. Artificial abrasive tools are divided into five categories: grinding wheels, grinding heads, oil stones, sand tiles, and coated abrasives. In addition, grinding agents are also classified as abrasive tools.

Tools for abrasive materials

The tool for abrasive materials, also known as the grinding tool, is a tool that shapes the workpiece and also carries the grinding agent. Its hardness should be lower than that of the workpiece and has a certain wear resistance. It is commonly made of gray cast iron. The metallographic structure of the wet grinding tool is mainly composed of ferrite, while the dry grinding tool is mainly composed of uniform and fine pearlite. When grinding M5 threads and small-sized workpieces with complex shapes, soft steel grinding tools are commonly used.

When grinding small holes and soft metal materials, brass and bronze grinding tools are mostly used. Grinding tools should have sufficient rigidity, and their working surfaces should have high geometric accuracy. Grinding tools are also subjected to cutting forces and wear forces during the grinding process. If operated properly, their precision can also be improved, so that the processing accuracy of the workpiece can be higher than the original precision of the grinding tool.