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ASME Y14.5 is a standard published by the American Society of Mechanical Engineers (ASME) to establish rules, symbols, definitions, requirements, defaults, and recommended practices for stating and interpreting Geometric Dimensions and Tolerances (GD&T). [1]
According to ASME Y14.5, the fundamental rules of GD&T are as follows, [2]: 7–8 All dimensions must have a tolerance. Plus and minus tolerances may be applied directly to dimensions or applied from a general tolerance block or general note. For basic dimensions, geometric tolerances are indirectly applied in a related feature control frame.
In this case the size of the tolerance range for both the shaft and hole is chosen to be the same (0.036 mm), meaning that both components have the same International Tolerance grade but this need not be the case in general. When no other tolerances are provided, the machining industry uses the following standard tolerances: [4] [5]
Geometrical Product Specification and Verification (GPS&V) [1] is a set of ISO standards developed by ISO Technical Committee 213. [2] The aim of those standards is to develop a common language to specify macro geometry (size, form, orientation, location) and micro-geometry (surface texture) of products or parts of products so that the language can be used consistently worldwide.
Standard tolerance grades are a group of tolerances for linear sizes characterized by a common identifier. For SI measurements, a system of tolerance grades defined in ISO 286 is frequently used and identified by the letters IT followed by a number specifying how precise the requirements are, relative to the nominal size of a part.
Welding - Electron and laser-beam welded joints - Guidance on quality level for imperfections - Part 2: Aluminium and its weldable alloys ISO 13920: Welding - General tolerances for welded constructions - Dimensions for lengths and angles - Shape and position ISO 14112: Gas welding equipment - Small kits for gas brazing and welding ISO 14175
I feel like ASME information is outdated. Last issue of ASME Y14.5 is from 2018 (ASME Y14.5:2018). I also feel like ISO GPS ('Geometrical Product Specification') desserves a new article as it is not an ASME equivalent but a completly different set of standards (see ISO TC 213 presentation)--JfMaurel 09:59, 4 February 2021 (UTC)
A go ring gauge's dimensions are based on the maximum OD tolerance of the round bar or part being gauged. A go plug gauge's dimensions are based on the minimum ID tolerance of the hole or part being gauged. The go plug (ID) gauge should be specified to a plus gaugemakers' tolerance from the minimum part tolerance. The go ring (OD) gauge should ...