Title: Rotary ultrasonic machining of titanium alloy (Ti-6Al-4V): effects of tool variables

Authors: N.J. Churi, Z.J. Pei, C. Treadwell

Addresses: Department of Industrial and Manufacturing Systems Engineering, Kansas State University, Manhattan, KS 66506, USA. ' Department of Industrial and Manufacturing Systems Engineering, Kansas State University, Manhattan, KS 66506, USA. ' President, Sonic-Mill Corporation 7500 Bluewater Road NW, Albuquerque, NM 87121, USA

Abstract: Unique properties of titanium alloys (such as high strength-to-weight ratio, heat and corrosion resistance, shock resistance and erosion resistance) make them important materials in industries. However, poor machinability poses considerable problems in fabrication of components from titanium alloys. Therefore, to machine titanium alloys cost effectively still remains a challenge. In this paper, Rotary Ultrasonic Machining (RUM) of titanium alloy (Ti-6Al-4V) has been investigated. Four tools with different specifications (diamond grit size, diamond concentration and metal bond type) are used to drill holes in titanium alloy workpieces. The cutting force, surface roughness on machined holes and rods and tool wear are compared.

Keywords: cutting force; diamond grinding; grinding wheel; rotary ultrasonic machining; RUM; surface roughness; titanium alloys; tool wear; diamond grit size; diamond concentration; metal bond type; drilling.

DOI: 10.1504/IJPTECH.2007.015347

International Journal of Precision Technology, 2007 Vol.1 No.1, pp.85 - 96

Published online: 10 Oct 2007 *

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