Elastic and Plastic Behaviors in Ductile-Regime Machining Process of Quartz Glass

Abstract

Single-point fly cutting and nanoindentation test of quartz glass were performed using three different cutting tools, namely, a V-shaped cutting tool, a Vickers indenter and a spherical indenter, to investigate the elastic and plastic behaviors of quartz glass in ductile-regime machining. It was found that these behaviors depend on tool shape and that the V-shaped cutting tool is most effective for removing quartz glass material followed by the Vickers indenter and spherical indenter.

Experimental study of crystal anisotropy based on ultra-precision cylindrical turning of single-crystal calcium fluoride

“…An orthogonal cutting test [17] was carried out to investigate the cutting mode transition from ductile to brittle in relation to the depth of cut. A three-axis ultra-precision vertical machine tool (UVM-450C, TOSHIBA MACHINE) was used.…”

Indentation Crack Initiation and Ductile to Brittle Transition Behavior of Fused Silica

“…It has been shown that plastic deformation of fused silica takes place under very shallow grit depth of cut by fly cutting experiment [1]. However, many efforts for making a shallow grit depth of cut, including electrolytic in-process dressing (ELID) [2,3], parallel grinding [4] and wheel truncation method [5], failed to produce ductile mode grinding of fused silica without SSMC left on the ground surface. Therefore, the crack initiation and the elastic/plastic deformation behavior of fused silica should be investigated further.…”