#Iso 5459 Pdf software

#Iso 5459 Pdf software

This paper used MATLAB software for the majority of data processing. Thus, in this paper, a primitive approach was done by introducing the algorithm of the surface reversal method and simulating the reversal method on a selected surface to test how it works. This problem leads to the purpose in introducing an understanding of how this method can be improvised. The reversal method introduced by previous research focuses in finding reference datum of topography data of cylinder end surface but somehow ignores the existence of error. As a result, an improved methodology for a stable and reliable primary datum plane establishment was developed. This research is based on the analysis of physical behavior and theoretical alignment of a part during the alignment process by measuring. This paper suggests a new approach for a function-oriented, explicitly defined primary datum plane establishing process and offers a corresponding clarified and simplified notation system of datums and datum system. This deficit causes ambiguous datum establishing process for a part and leads an irreproducible measurement results in practice. This process cannot function theoretically, because the primary common datum plane is the bisector plane of these two parallel planes which cannot be established by only 3 datum targets on different planes.

According to the ISO Geometrical Product Specification (GPS), a primary common datum plane of a part with two parallel offset planes is established by two datum targets on one plane and one datum target on another parallel plane.