An investigation of factors affecting surface generation in ultrasonic vibration assisted diamond cutting of hard-brittle materials

Chi Fai Cheung, Chunjin Wang, Jiangbo Chen, David Robertson, Benjamin Bulla, Lai Ting Ho

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Ultrasonic Vibration Assisted (UVA) machining is being used for direct diamond turning of hard-brittle materials to obtain optical-quality surfaces. It largely reduces the processing time and cost to produce the high accuracy surface on hard-brittle materials. However, our understanding of the cutting mechanics and surface generation in UVA diamond cutting of these materials is still far from complete. In this paper, an experimental investigation has been conducted to study the effect of the factors affecting the surface generation in UVA diamond cutting of hard-brittle materials. A series of tapered grooving experiments were conducted on optical glass (BK7), tungsten carbride (WC), and Silicon Carbide (RB-SiC). The factors under control in this investigation included vibration amplitude of the UVA system, cutting speed, cooling conditions and depth of cut. With appropriate selection of cutting parameters, the experimental results show that it is technically feasible to achieve ductile cutting of hard-brittle materials by UVA diamond cutting. The results provide an important means for better understanding the cutting mechanics and surface generation of UVA diamond cutting of hard-brittle materials.

Original languageEnglish
Title of host publicationEuropean Society for Precision Engineering and Nanotechnology, Conference Proceedings - 19th International Conference and Exhibition, EUSPEN 2019
EditorsRichard K. Leach, D. Billington, C. Nisbet, D. Phillips
Publishereuspen
Pages448-451
Number of pages4
ISBN (Electronic)9780995775145
Publication statusPublished - 3 Jun 2019
Event19th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2019 - Bilbao, Spain
Duration: 3 Jun 20197 Jun 2019

Publication series

NameEuropean Society for Precision Engineering and Nanotechnology, Conference Proceedings - 19th International Conference and Exhibition, EUSPEN 2019

Conference

Conference19th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2019
Country/TerritorySpain
CityBilbao
Period3/06/197/06/19

Keywords

  • Hard-brittle materials
  • Surface generation
  • Surface integrity
  • Ultra-precision machining
  • Ultrasonic vibration

ASJC Scopus subject areas

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

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