Spatial Dimensional Chains


The term “dimensional chain” (DC) is a fundamental concept related to the tolerancing of size, form, and position of features in machine parts and whole systems relating to different manufacturing stages: design, process planning, machining, measuring, and assembling. Formally, the DC presents a single loop of (linear and/or angular) dimensions, one of which is a closing link (closing dimension) and the others are input dimensions. Thanks to its closeness to the engineering design process and engineering metrology, this concept is successfully used for the establishment and observance of tolerances.

8.2Dimensional chains
8.3Application to tolerances of location and orientation
8.4Example of spatial dimensional chain
Topics: Chain

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