Requirements For Aluminum Alloy Turning Tools And Cutting Fluids

DALIAN, China - Aug. 29, 2022 - PRLog -- Special requirements for metal cutting fluid in aluminum alloy turning

Reasonable use of lubricating fluid can improve turning conditions and achieve twice the result with half the effort. When turning aluminum alloy numerically, special requirements of metal cutting fluid for aluminum alloy turning shall be paid attention to:

The strength and hardness of aluminum alloy are much higher than that of pure aluminum. Compared with steel, aluminum alloy has low strength and hardness, small cutting force and good thermal conductivity. According to the production process, aluminum alloy can be divided into two categories: cast aluminum alloy (or cast aluminum alloy) and deformed aluminum alloy. The plasticity of cast aluminum alloy is low, and the elongation is generally below 4%. It is not suitable for pressure machining, and most of it has good machinability. The deformed aluminum alloy in various states is soft, and its strength and hardness are not high. The difficulty of cutting lies in its high plasticity. When cutting, it is easy to stick to the tool, form chip nodules, and it is difficult to obtain good surface quality. When cutting at high speed, the blade may produce fusion welding, which will make the tool lose its cutting ability and affect the machining accuracy and surface roughness. In addition, the coefficient of thermal expansion of aluminum alloy is large, which is easy to cause thermal deformation of workpiece during cutting and reduce machining accuracy.

Based on the above reasons, the selection of cutting fluid for aluminum alloy processing is very important, which not only ensures good lubricity and rust prevention, but also has very good cooling and filtration. Try to choose special aluminum alloy cutting fluid. Because the special aluminum alloy cutting fluid generally contains special aluminum inhibitors, which can ensure that the workpiece surface will not be damaged during processing. Aluminum alloy cutting fluid can be selected, which has a good anti-oxidation protection effect on the surface of aluminum alloy, excellent lubricity and extreme pressure. It is suitable for various processing processes of aluminum alloy, including turning, milling, drilling, grinding, reaming, blind hole / through-hole tapping, etc.

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