Why use cutting fluid in cnc lathe machine processing?

During the cnc lathe machine processing, when the cut is seen, the nearby nozzle will spray oil like liquid. In fact, this fluid is cutting fluid.

Cutting fluid is the lubricant used in cnc lathe manufacture, which has the functions of lubricating, cooling and cleaning. Therefore, cutting fluid plays a very important role in the automatic machining of high precision cnc lathe.

The role of cutting fluid in cnc lathe machine

1. Lubrication:

The cutting fluid can form an oil film on the workpiece and tool surfaces, and can penetrate into the smallest metal gaps and irregularities to reduce friction between metals.

The following effects can be achieved: reduce tool wear and prolong tool life; reduce cutting resistance and reduce machining power; prevent edge burrs and improve the accuracy of machined surfaces.

2. Cool down

The cutting fluid of the mini cnc lathe machine can reduce the heat generated in the cutting operation, and its temperature can be as high as 600-1000℃. Especially for workpieces with low thermal conductivity such as stainless steel, it is difficult to dissipate heat and the workpiece will become hot.

Using cutting fluid to reduce the temperature can bring the following effects: reduce the thermal deformation of the tool and prolong the service life of the tool; prevent the thermal deformation of the workpiece and the tool, stabilize the machining accuracy; realize high-speed machining.

3. Cleaning

Spraying cutting fluid can wash away the chips generated in the cutting process and clean the workpiece, which can bring the following effects: prevent the workpiece from being scratched due to chip adhesion; prevent machining defects caused by chip clogging and accumulation;prevent tool breakage due to chip entanglement.

Classification of cutting fluid for cnc mini metal lathe

Cutting fluids can be roughly divided into two types: insoluble and water-soluble. Insoluble cutting fluids can be used directly, focusing on lubrication (a few are used for cooling). Water-soluble cutting fluids are usually diluted with water and used for cooling.

1. Insoluble cutting fluid

Insoluble cutting fluids are cutting oils with oil as the main component. With good "lubrication" effect, it can effectively prevent CNC machine tools and workpieces from rusting. Mainly used for cutting operations that require high precision.

Insoluble cutting fluid can be divided into inert type and active type. The inert type is used for gentle cutting and machining of soft metals and can effectively increase tool life. The active type is used for difficult materials and low-speed machining, such as gear cutting, which can effectively improve the machining accuracy.

2. Water-soluble cutting fluid

Water-soluble cutting fluid is a cutting oil that is a mixture of water and oil. It has good cooling effect and is widely used in high-speed machining of machining centers.

There are three commonly used water-soluble cutting fluids: lotion, soluble solution and soluble solution.

Lotion is a water-soluble cutting fluid composed of water, oil and surfactant. It is a milky white liquid with large oily particles. High versatility, widely used in machining centers.

Soluble cutting oil, water-soluble cutting oil composed of water, oil, surfactant and soluble substances, is a translucent liquid with small oil particles. Excellent heat dissipation and breathability.

Soluble fluid, water-soluble cutting oil composed of water and soluble substances. The oil particles are very small, the liquid is usually green in color, and has excellent cooling and durability.

The above is the introduction of the function and classification of cutting fluid. I hope you have a better understanding of this fluid.