Wenxiang Zhao

TL;DR: In this article, an elliptical ultrasonic vibrator attached with a sapphire substrate was set up on a multi-axis CNC controlled machining center equipped with a single point diamond tool, and the effects of ultrasonic vibration on the critical depth of cut a c for the ductile-brittle transition region and the material removal ratio were investigated by the examination of the scratching groove surfaces with SEM and AFM.

TL;DR: In this article, a two-dimensional ultrasonic assisted grinding (UAG) technique is proposed to achieve high material removal rate and high surface quality in the machining of hard and brittle materials such as monocrystal silicon.

TL;DR: In this paper, a series of grinding experiments under the presence/absence of ultrasonic vibration assistance are performed, and the grinding forces and work-surface roughness are measured, while the wheel surface is examined too.

TL;DR: In this article, the authors used three-dimensional finite element (FE) modeling for simulating the small hole drilling process of AISI 1045 by using Abaqus/Explicit.

TL;DR: In this article, a pulsed magnetic treatment system was designed and applied to the tool material treatment, and the micro-hardness and red hardness were measured to quantitatively investigate the influence of magnetic treatment on the mechanical properties.