The cutting fluid plays a very important role in the machining of workpiece in CNC machining center. Cutting fluid will be used in any material processed by CNC machining center. Therefore, cutting fluid is an indispensable liquid in CNC machining center. The main function of the cutting fluid is lubrication, cooling, anti-corrosion, anti rust, etc. if there is no cutting fluid for processing, the workpiece will be easy to deform and rust under high temperature. Therefore, CNC machining center must use cutting fluid to avoid this undesirable phenomenon.
There are many kinds of cutting fluids. Today, we will talk about several commonly used in the market. These are emulsion, chemical synthetic cutting fluid and cutting oil added with extreme pressure additives. Today, we will introduce these three common cutting fluids.
Advantages and disadvantages of cutting oil with EP additive
Advantages: the general use and cutting speed is not higher than 60m / min, the main cutting speed is not higher than 60m / min, regardless of any material cutting processing. Disadvantages: in high-speed cutting, due to the large amount of heat, oil-based cutting fluid heat dissipation effect is poor, so in high-speed cutting will produce stable and high smoke or fire. Therefore, due to high stability will have a certain impact on the workpiece, such as workpiece deformation, poor machining accuracy and other adverse phenomena.
Advantages and disadvantages of emulsion
Advantages: the biggest advantage of emulsion is strong heat dissipation, can clean the workpiece and high cost performance, which is conducive to the health and safety of operators. Therefore, the general metal processing plant is to choose the use of emulsion processing. In addition to the materials that are particularly difficult to machine, emulsion can be used for almost all light and medium load cutting and most heavy load processing, especially for processing thread grinding, groove hemp cutting and other complex grinding. Disadvantages: the biggest defect of emulsion is that it is easy to make bacteria and mold multiply, and make the effective components in emulsion decompose and stink and deteriorate In general, organic fungicides with low toxicity should be added.
Advantages and disadvantages of chemical synthetic cutting fluid
Advantages: it has the advantages of high cost performance, fast heat dissipation, strong cleaning ability and excellent workpiece visibility. It is very easy to control the size of the workpiece. Its stability and anti-corruption ability are better than emulsion. The disadvantage is that the lubrication ability is not strong, it is easy to suck the adhesion and wear of the moving parts of the machining center. Moreover, the viscous residue left by the chemical synthesis will affect the movement of the parts of the machining center and cause the rust of the overlapping surfaces of the parts.
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