THE EFFECT OF EXPERIMENTAL ERROR ON THE DETERMINATION OF THE OPTIMUM METAL-CUTTING CONDITIONS.

Abstract

Conclusions: The effect of experimental error on the determination of the minimum-cost cutting speed was investigated using the concept of statistical inference. The theoretical cutting speed for minimum cost (V(min)) is not uniquely defined, but lies within a probable range of speeds because of the uncertainty in the parameter-estimates of the tool-life equation. The confidence interval for V(min) depends on the magnitude of the cost-time parameter t sub e; as t sub e increases, the V(min) confidence interval decreases. The confidence interval for V(min) is affected by the experimental range of feed in tool-life testing; the smallest confidence interval is at the average experimental feed. A decision rule based on the minimax principle is used to illustrate the selection of a specific speed from within the V(min) confidence interval. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1966
Accession Number
AD0632518

Entities

People

  • D. S. Ermer
  • S. M. Wu

Organizations

  • University of Wisconsin–Madison

Tags

DTIC Thesaurus Topics

  • Cooperation
  • Engineering
  • Equations
  • Interdisciplinary Science
  • Intervals
  • Mechanical Engineering
  • Pennsylvania
  • Statistical Inference
  • Systems Engineering
  • Uncertainty
  • Universities

Readers

  • Approximation Theory.
  • Manufacturing Engineering.
  • Systems Analysis and Design

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference
  • AI & ML - Machine Learning Algorithms