Analysis of the effect of datum-establishment methods on the geometric errors of machined features

Vinod Bhat, Edward C. De Meter

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

A simulation analysis was carried out to evaluate the performance of three datum-establishment methods: 3-2-1, sequential least-squares (SLS) and simultaneous least-squares (SMLS). The analysis involved the simulated drilling of three holes in a two set-up process. Simulated coordinate data were obtained from three planar, nominally orthogonal surfaces subject to perpendicularly errors and random roughness errors. Workpiece datum reference frames were fitted to this data using the three methods, the holes were drilled relative to these reference frames, and their position errors were computed relative to an ANSI-Y14.5M-defined reference frame.

Original languageEnglish (US)
Pages (from-to)1951-1975
Number of pages25
JournalInternational Journal of Machine Tools and Manufacture
Volume40
Issue number13
DOIs
StatePublished - Oct 2000

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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