A comprehensive study on cutting mechanisms and surface integrity of AISI 304 when turning a curved surface

Jian Weng, Kejia Zhuang, Dongdong Xu, Rachid M’Saoubi, Jinming Zhou

Research output: Contribution to journalArticlepeer-review

Abstract

Most of the studies on cutting mechanisms and surface integrity in turning are investigated with a straight tool path (longitudinal/end face turning) while few contributions have been done in curved surface turning. This work explores the evolutions of cutting force, chip morphology and surface integrity when turning a curved surface, using fillet surface machining of AISI 304 stainless steel. The varying cutting conditions caused by the presented turning are revealed by detailed geometric analysis and employed as indicators for further discussions on cutting force, chip morphology, and machined surface integrity (including surface roughness, microhardness, microstructure, and residual stress). Apart from the difference of cutting force components in tangential, radial, and cutting speed directions along the fillet surface, wider and thinner chips are obtained from end face turning. The measured microhardness, microstructural alternation, and stress condition results comprehensively illustrate a reduction of severe plastic deformation from the outer face to the end face.

Original languageEnglish
Pages (from-to)1285-1298
JournalMaterials and Manufacturing Processes
Volume36
Issue number11
Early online date2021
DOIs
Publication statusPublished - 2021

Subject classification (UKÄ)

  • Tribology

Keywords

  • chip
  • fillet
  • force
  • mechanisms
  • microhardness
  • microstructure
  • residual
  • roughness
  • stress
  • surface
  • Turning

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