公差率
公差率-
螺纹钢的负公差率得到提高。
The rate of minus tolerance of rebar is raised .
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基于NURBS的形位公差装配成功率计算方法研究
Research on the Calculation Method of Geometric Tolerance Stack-up Yield Based on NURBS
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给出了带钢宽度、厚度公差与带钢成型时延伸率的关系式。分析了公差对延伸率的影响。
Equations of relations between thickness and width tolerances and elongation of strip forming are given and the influences of the tolerances on the elongation are analysed .
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通过对三种公差原则的尺寸公差值和公差带利用率的分析，给出应用公差原则的选择原则。
Based on the analysis on the size tolerance rules and tolerance range usage ratio of three kinds of tolerance rules , give out the selection rules .