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本文从含改善产品性能及降低加工成本两方面阐述采用统计尺寸公差的必要性。为使统计尺寸公差获得生产运用,本文提出了控制统计尺寸公差的可行方法及图样标注方式。
This article describes the necessity of using statistical dimensional tolerances from two aspects, including improving product performance and reducing processing cost. In order to make the statistical dimension tolerance obtain the production and application, this article has proposed the feasible method and the pattern marking pattern which controls the statistical dimension tolerance.