The quality of the precision parts, except the machining accuracy, also has the machining surface quality, it is the characteristic of the surface layer state integrity after the parts processing.
With the rapid development of modern machine manufacturing industry, the requirements of machine parts is increasing day by day, some important precision components must work under the high-speed, high temperature, high pressure and heavy load conditions, any defect in the surface layer, not only directly affect the parts of the working performance, and make parts accelerated wear, corrosion and failure, so it is necessary to pay attention to the problem of surface quality.
What is the surface treatment of aluminum alloy in numerical control CNC precision machining? The roughness of surface roughness refers to the micro geometric error of the machined surface.. Mean arithmetic mean deviation of roughness profile. Surface rough degree is usually formed by the trajectory of the cutting tool in machining, the ratio of the wavelength and wave height is generally less than 50.
Surface crossing the degree is between macro geometry error (] *) and micro geometry (i.e., roughness) error between periodic geometry error. In Figure 58 (b), the A indicates the height of the wave height. Surface waviness is usually caused by the low frequency vibration of the process system in the process, which is long with the wave height ratio is generally 50 ~ l 0.
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