The transient changing of forces in interrupted milling

Z. Pálmai, J. Kundrák, T. Makkai

Research output: Contribution to journalArticle

Abstract

The knowledge of cutting force in practical technology is increasingly important due to the growing quality and performance requirements. Therefore, especially in the case of milling, it also represents an important research area of cutting theory. The aim of the research in the project presented here was the study of transient processes assumed in milling. For this purpose, a model that describes cutting force in interrupted cutting realistically was developed. According to the initial hypothesis, cutting force reaches a stationary status in a finite time due to the fact that the thermodynamic processes of deformation are time consuming. This influences the energy characteristics of cutting significantly in the case of milling. It was assumed that the transient increase of cutting force can be described by a formula where Kienzle’s force formula is supplemented by an exponential function. The validation of this force model was performed by force measuring during the machining of normalized C-steel of C45 quality. One tool insert was used in the face milling tool. The measurements justified the applicability of the model; the Pearson index of the correlation was R2 > 0.9, moreover, it was higher than 0.95 in many cases.

Original languageEnglish
Pages (from-to)3787-3801
Number of pages15
JournalInternational Journal of Advanced Manufacturing Technology
Volume104
Issue number9-12
DOIs
Publication statusPublished - Oct 1 2019

Keywords

  • Cutting
  • Milling modeling
  • Transient force

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Software
  • Mechanical Engineering
  • Computer Science Applications
  • Industrial and Manufacturing Engineering

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