Complementing and enhancing definitions of position tolerance for a real point based on ISO Geometrical Product Specifications (GPS). (August 2018)

• Record Type: Journal Article
• Authors: Yan, Yiqing; Bohn, Martin; Peters, Steven; Heisel, Uwe
• Is Part Of: CIRP journal of manufacturing science and technology. Volume 22(2018)
• Page Start: 107
• Page End: 110
• Publication Date: 2018-08
• Subjects: Tolerancing -- Standardization -- Geometry; Manufacturing processes -- Periodicals; 670.5
• DOI: 10.1016/j.cirpj.2018.04.004
• Languages: English
• ISSNs: 1755-5817

Abstract

Abstract: According to ISO standards, the position tolerance symbol has only explicit definitions and examples of the specification for a derived point from a sphere under classification of a punctiform toleranced feature. For a real point on an integral surface, there are no explicit definitions and examples. Thus there are gaps in definition here causing undefined and irreproducible applications of position specifications into a real point. This paper suggests a new approach for explicitly defining the function-oriented position tolerance for real points, based on the analysis of its physical behaviour. As a result, an enhanced systematic approach for position tolerance is developed, which fills definition gaps.