The difference between composite material grinding fluids and cutting fluids

　　 Composite material grinding fluid Difference from cutting fluids:

　　1. Different ingredients

　　Cutting fluids come in mineral oil-based, semi-synthetic, and fully synthetic varieties. Cutting fluids made from mineral oil are typically emulsified and appear milky white; semi-synthetic cutting fluids have a slightly emulsified texture and are opaque.

　　Composite grinding fluids are further divided into mineral oil-based and fully synthetic fluids. When selecting a general-purpose grinding fluid, the key considerations are the oil flow rate and rust-prevention performance. Both general-purpose grinding fluids and emulsified cutting fluids can be used interchangeably; however, if there are special requirements for precision and environmental protection, a fully synthetic grinding fluid should be employed.

　　2. Processing techniques with different functions

　　Metalworking fluids (hereinafter referred to as cutting fluids) play a lubricating role during the cutting process, forming a partial lubricating film between the rake face and the chip, as well as between the flank face and the workpiece surface. This reduces cutting forces, frictional forces, and power consumption, lowers the temperature on the tool surface, and minimizes wear on both the workpiece and the tool, thereby enhancing the machinability of the workpiece material.

　　During the grinding process, add Composite material grinding fluid Subsequently, the grinding fluid penetrates between the grinding wheel and the workpiece as well as between the grinding wheel and the chips, forming a lubricating film that reduces friction at the interface, prevents wear on the abrasive grain edges, and inhibits chip adhesion. As a result, grinding forces and frictional heat are reduced, enhancing both the durability of the grinding wheel and the surface quality of the workpiece.

　　3. Different concepts

　　Cutting fluid is an industrial liquid used during the cutting, machining, and grinding of metal materials to cool and lubricate both the tool and the workpiece. Cutting fluids are formulated through a scientifically optimized combination of various high-performance additives.

　　The oil-based abrasive fluids used in composite material grinding include aviation turbine oil, kerosene, transformer oil, as well as various vegetable oils, animal oils, and hydrocarbons, all of which contain multiple additives. The key requirements are good viscosity, lubrication, and rust-prevention properties. During the cleaning process, these fluids must be used in conjunction with organic solvents, which results in drawbacks such as environmental pollution and higher costs.

　　Extended information

　　1. Composite grinding fluid is an important auxiliary material for grinding. During the grinding process, the grinding wheel and the workpiece undergo cutting and scratching, generating significant amounts of grinding heat.

　　Approximately 10% to 20% of the feed is directed toward the workpiece, with the tool feed rate being less than 5%. However, due to the relatively thin metal removal layer, about 60% to 90% of the heat generated is transferred into the workpiece, while less than 10% of the heat is carried away by the grinding process itself. This results in significant grinding heat generation, with temperatures in the grinding zone reaching around 400 to 1000°C. At these high temperatures, the material undergoes deformation, and the grinding wheel experiences severe wear.

　　When the quality of the grinding fluid for composite materials declines, grinding and T-turning operations typically employ a grinding fluid that effectively removes large amounts of abrasive particles, thereby reducing the temperature in the grinding zone.

　　2. Cutting fluid is an industrial liquid used in metal cutting and grinding processes to cool and lubricate both the cutting tool and the workpiece. It is formulated through a scientifically compounded blend of various high-performance additives.

　　At the same time, it boasts excellent cooling performance, lubrication properties, rust-prevention capabilities, oil-cleaning function, anti-corrosion features, and ease of dilution. It overcomes the drawbacks of traditional soap-based emulsions—such as their tendency to develop odors in summer, difficulty in diluting during winter, and poor rust-prevention effects—while having no adverse impact on lathe paints.

　　Suitable for cutting and grinding ferrous metals, this is currently the leading grinding product. All performance indicators of the cutting fluid surpass those of saponified oil, boasting excellent cooling, cleaning, and anti-rust properties. It is also characterized by being non-toxic, odorless, non-corrosive to humans, non-corrosive to equipment, and environmentally friendly.