Low-temperature machining in a fully submerged cryogenic environment

Zhiyu Wang, Saurabh Basu, Christopher Saldana

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The role of an immersive cryogenic environment in affecting material response in machining was explored using dynamometry, calorimetry, electron microscopy, and microindentation. Effects of tool rake angle on energy dissipation, stored energy of cold work, deformed microstructure, and hardening were evaluated for machining under a fully submerged cryogenic cutting environment and a dry cutting environment. Sustained immersion of the cutting zone in liquid nitrogen resulted in greater energy dissipation and hardening in the work and machined subsurface. This increased hardening at low temperature was directly linked to greater microstructure refinement and a lower fraction of dissipated energy stored in the form of added defects and grain boundaries. Various microstructure types with domain sizes from microscale to nanoscale were developed in the machined chips, depending on the rake angle and temperature used.

Original languageEnglish (US)
Pages (from-to)19-36
Number of pages18
JournalMachining Science and Technology
Volume21
Issue number1
DOIs
StatePublished - Jan 2 2017

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'Low-temperature machining in a fully submerged cryogenic environment'. Together they form a unique fingerprint.

Cite this