Paper Title:

A Study of Ultrasonically Assisted Fly Cutting for High Precision Machining Hard Brittle Materials

Periodical Advanced Materials Research (Volumes 126 - 128)
Main Theme Advances in Abrasive Technology XIII
Edited by Yunn-Shiuan Liao, Chao-Chang A. Chen, Choung-Lii Chao and Pei-Lum Tso
Pages 252-257
DOI 10.4028/www.scientific.net/AMR.126-128.252
Citation Keisuke Hara et al., 2010, Advanced Materials Research, 126-128, 252
Online since August, 2010
Authors Keisuke Hara, Hiromi Isobe, Shuichi Chiba, Keiko Abe
Keywords Advanced Ceramic, CBN Tool, Fly Cutting, Ultrasonically Assisted Machining
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Abstract

This paper describes ultrasonically assisted fly cutting for finishing advanced ceramics for hot-press dies used to fabricate glass lenses. Fly cutting can perform shallow machining, which realizes ductile-mode cutting of hard, brittle materials. Ultrasonically assisted machining can increase the critical cutting depth (i.e., the maximum cutting depth for ductile-mode machining of a surface). The technique proposed in this paper combines both techniques and enables precise finishing of advanced ceramics at a high machining efficiency. Ultrasonic assisted fly cutting was found to reduce tool fracture and improve the finished surface quality compared with conventional fly cutting.