The application of tungsten-nickel-iron alloy in the spindle damping blocks of high-speed machine tools gives full play to its high density and high damping characteristics, which plays an important role in reducing spindle vibration and improving machining accuracy. When the spindle of a high-speed machine tool is running, especially during high-speed cutting, high-frequency vibration will be generated due to factors such as the contact between the tool and the workpiece, motor vibration, etc. These vibrations not only affect the quality of the machined surface, but also may lead to increased tool wear and shortened spindle life. The core function of the damping block is to suppress the vibration amplitude of the spindle by absorbing and consuming vibration energy.
The high density of tungsten-nickel-iron alloy enables it to form a large inertial mass in a small volume. When the spindle vibrates, the damping block can generate damping force through friction or elastic deformation with the spindle, quickly attenuate the vibration energy, and make the spindle return to a stable state as soon as possible. Its uniform internal structure and good mechanical properties ensure the consistency and stability of the damping effect, without performance degradation due to long-term use.
In terms of structural design, damping blocks are usually installed at both ends of the spindle or key supporting parts, forming a rigid connection with the spindle to ensure that vibration energy can be effectively transmitted to the damping blocks and absorbed. For example, in precision turning or milling, the spindle equipped with tungsten-nickel-iron alloy damping blocks can significantly reduce radial and axial vibrations, reducing the surface roughness and improving the dimensional accuracy of machined parts. In addition, the high temperature resistance of the alloy adapts to the heat generated by the high-speed operation of the spindle, avoiding the performance degradation of the damping block due to temperature rise, ensuring that high-speed machine tools can still maintain a good vibration reduction effect during long-term continuous work.
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