Influence of Wax Lubrication on Cutting Performance of Single-Crystal Silicon in Ultraprecision Microgrooving

Seyed Nader Ameli Kalkhoran, Mehrdad Vahdati, Zhiyu Zhang, Jiwang Yan

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Lubrication can improve the tool-workpiece interface condition in ultraprecision machining, especially in microgrooving processes. The aim of this study was to compare the effects of dry, liquid (cutting oil), solid (wax) and hybrid (cutting oil and wax) lubrication conditions, on the creation of arc-sectioned microgrooves on single-crystal silicon wafers using a single-crystal diamond tool. Micro cutting forces, chip morphology, and surface quality at different locations of the grooves were investigated. Rose-shaped continuous chips were observed in dry cutting, indicating stable ductile mode material removal. The entrance side of the groove was always smoother than the exit side with a higher degree of phase transformation. Chip adhesions on the tool edge were found in dry and oil lubricated cutting, whereas wax coating could prevent the adhesion. Wax coating played the dual roles of a chip breaker as well as a high-performance lubricant, thus improved the surface integrity. This study demonstrated the capability of using wax coating as an environmentally friendly solid lubricant for microgrooving of single-crystal silicon and possibly for other hard brittle materials.

Original languageEnglish
Pages (from-to)611-624
Number of pages14
JournalInternational Journal of Precision Engineering and Manufacturing - Green Technology
Issue number2
Publication statusPublished - 2021 Mar


  • Diamond turning
  • Green manufacturing
  • Micro cutting
  • Micro groove
  • Single crystalline silicon
  • Solid lubricant
  • Ultraprecision machining

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • General Materials Science
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Management of Technology and Innovation


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