Engineering Commons^™

Parametric Study Of The Cutting Process And Surface Formation During Elliptical Vibration Assisted Single Point Cutting, Nikolai D. Farrus

Electronic Thesis and Dissertation Repository

Elliptical vibration cutting has enabled the fabrication of numerous functional surfaces such as optical quality surface finishes, micro/nano surface texturing, and improved cutting force reduction on ferrous and other hard‑to‑cut materials. This wide range of capabilities comes from the high‑frequency elliptical vibrations produced at the tool tip, ultimately introducing discontinuous contact between the cutting tool and workpiece. However, despite the relative use of this technology, there has been limited investigation on the overarching parametric influence that its cutting parameters have on process outcomes such as cutting forces and surface roughness formation.

The current thesis addresses this research gap with the …

Experimental Analysis Of Parameters Influencing The Bone Burring Process, Jonathan Kusins

Electronic Thesis and Dissertation Repository

The experimental quantification of the bone removal characteristics associated with bone burring represents a desirable outcome mainly for the selection of optimal parameters. An experimental apparatus was developed that allowed for concurrent measurement of three outputs associated with the bone removal process (cutting force, vibration, and temperature) as a function of various burring-specific parameters. Initial process trends were established on a uniform sawbone analog through use of a fully balanced multivariate statistical analysis. A smaller set of optimal and suboptimal parameters were further validated using a porcine femur. From the parameters tested, an optimal tool configuration, to avoid high temperature …