GB/T 38762.3-2020Geometrical product specifications (GPS) - Dimensional tolerancing - Part 3: Angular sizes (English PDF)

GB/T 38762.3-2020 is the English-translated version of 产品几何技术规范（GPS） 尺寸公差 第3部分：角度尺寸.

GB/T 38762.3-2020 is the Chinese standard "Geometrical product specifications (GPS) - Dimensional tolerancing - Part 3: Angular sizes".

Its scope clause reads: This part of GB/T 38762 establishes the default specification set of angular dimensions, and defines a series of angular dimension elements Specific specification operation set. cone (truncated such as truncated or untruncated), wedge (truncated or untruncated), two relatively straight lines (from perpendicular to the wedge/truncated) The plane where the straight line of the broken wedge intersects the wedge/truncated wedge is obtained by the plane containing the axis of the cone/conical table and the phase of the cone/conical table Obtained), see Figure 1 and Figure 2.

This section also specifies the specification modifiers and drawing annotations of the above angular dimensions.

This section contains the following angular dimensions. --- Local angle size. a) Angle dimension between two lines; b) Partial angular dimensions. --- Global angle size. a) Direct global angle dimension; 1) Least square angle dimension; 2) Minimum area angle size. b) Statistical angular size/indirect global angular size.

1) Maximum angle size; 2) Minimum angle size; 3) Average angle size; 4) Angle size range; 5) Extreme average angle size; 6) Median angle dimension; 7) Standard deviation of angular dimensions.

This section defines the meaning of the following angular dimension tolerance labels. --- and/or-limit deviation, such as 0 °/-0.5 °; --- Mark the upper limit size (ULS) and/or lower limit size (LLS), such as 35 ° max, or 15 ° min., 34 °/36 °; --- With or without modifiers.

This section gives a series of tools to express the characteristics of different types of angular dimensions, but does not provide any special features about functions/applications and angular dimensions. Information about the relationship between the levy.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 37 pages — is available in the English PDF.

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