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Technical Brief

Experimental Comparison of Micromilling Pure Titanium and Ti-6Al-4V

[+] Author and Article Information
Fábio O. Campos

Mechanical Engineering Program / COPPE / Universidade Federal do Rio de Janeiro, Department Mechanical Engineering / Centro Federal de Educação Tecnológica Celso Suckow da Fonseca - RJ, Estr. de Adrianópolis, 1317 - Vila Nossa Sra. da Conceição, Nova Iguaçu - RJ, 26041-271
fo.campos@mecanica.coppe.ufrj.br

Anna Carla Monteiro Araujo

Mechanical Engineering Program / COPPE / Universidade Federal do Rio de Janeiro, Caixa Postal 68.503, Rio de Janeiro, RJ - 21941-909
anna@ufrj.br

Shiv G Kapoor

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, IL - 61801
sgkapoor@illinois.edu

1Corresponding author.

ASME doi:10.1115/1.4043501 History: Received November 09, 2018; Revised April 05, 2019

Abstract

Pure titanium is the ideal metallic material to be used for producing dental implants due to its good corrosion resistance and biocompatibility. However, pure titanium does not present high mechanical resistance, which can be a limiting factor. Recently, the pure titanium is being replaced by titanium alloy with aluminum and vanadium (Ti-6Al-4V). This study deals with micromilling machinability of pure titanium and Ti-6Al-4V considering mechanical properties, the forces measured during the process, surface roughness, top burr height, and chips morphology. The cutting tests are performed for the constant depth of cut and cutting speed, and a range of feed per tooth from 0.5 to 4.0 µm/tooth. Results show no significant differences in roughness and burr formation whereas higher forces are found for the titanium alloy compared to pure metal. Both materials produce long chips for smaller feeds.

Copyright (c) 2019 by ASME
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