Shenzhen precision machinery parts processing dimensional tolerance limits how to identify with the progress of the society, people increasingly high demand for high quality products, which involves the precision machinery parts processing is more complex.
Thus also requires that a smaller, for a variety of error in mechanical processing, each process will produce error, we can't eliminate error, can control them, as much as possible to minimize error.
error is mainly affected by random factors of the processing system, the results will lead to precision machinery parts processing after the actual size of relative ideal value have a deviation, the deviation was close to normal distribution, mathematical expectation of the actual size is close to ideal value, so that it is possible to use statistical dimensional tolerance to determine the tolerance of the parts.
So how to determine the tolerance limit?
Should ensure that its function on the one hand, on the other hand, allows the numerical dispersion process, and make it more economical.
The advantages of application of statistical dimensional tolerance is: to meet the product performance and assembly performance under the premise of increased tolerance zone, improve the economic benefit of precision machinery parts processing.
The size of the tolerance zone by the deviation of random distribution calculation method for export, processing system by the dimensional deviation distribution characteristics can be obtained by multiple measurements.
Precision machining all can adjust measurable characteristics in the process of value, has the randomness, the size of the parts, the shape and surface topography rarely reach the ideal value, therefore must pass the tolerance limit deviation in a certain range, if this kind of independent of each other under the condition of random eigenvalue of probability and statistics.
Statistical dimensional tolerance: the error of precision machinery parts processing mainly comes from machine tools, tools, materials, and human factors, in order to better apply statistical dimensional tolerance, precision machinery processing enterprises in the mass production, the error of parts with normal distribution monitoring, which can predict the tendency and law of error.
As is known to all, with the improvement of precision machinery parts processing precision, the production cost, the difficulty increases, the statistical tolerance is the purpose of, in the guarantee products on the premise of the use of the whole machine and assembly requirements, as long as the error of parts subject to normal distribution, after considering the processing craft, can relax appropriately tolerance zone, makes the mass production has a good economy.
The above information is derived from the shenzhen precision machinery parts processing manufacturer Xavier company, more products please click on the link to see http://www for details.
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