Secondary Machining Characteristics of Additive Manufactured Titanium Alloy Ti-6Al-4V

Ashwin Polishetty; Basil Raju; Guy Littlefair

doi:10.4028/www.scientific.net/KEM.779.149

Paper Titles

Grafting Carbon Nanotube for Dye-Sensitized Solar Cell Improvement
p.122

The Nanoporous Carbon Derived from Melamine Based Polybenzoxazine and NaCl Templating
p.129

Fabrication of Zinc Oxide-Polyaniline Composite on Kapok Paper for Methylene Blue Dye Removal in Aqueous Solution
p.137

Practical Research of Evaporation Control of Fuel Storage in Horizontal Oil Tank
p.142

Secondary Machining Characteristics of Additive Manufactured Titanium Alloy Ti-6Al-4V
p.149

Effects of Cutting Speed and Feed Rate on Surface Roughness in Hard Turning of AISI 4140 with Mixed Ceramic Cutting Tool
p.153

Effect of Methods of Changing in Focusing Ratio on Line Geometry in Aerosol Jet Printing
p.159

Metallic Materials Prepared by Selective Laser Melting: Part Orientation Issue
p.165

Methodology of Technological Adaptation Applied to Powder Rolling
p.174

HomeKey Engineering MaterialsKey Engineering Materials Vol. 779Secondary Machining Characteristics of Additive...

Secondary Machining Characteristics of Additive Manufactured Titanium Alloy Ti-6Al-4V

Abstract:

Titanium alloy, Ti-6Al-4V is a popular alloy used in wide range of design applications mostly in aerospace and biomedical industry due to its advantageous material properties. This research is based on threading operation in a cylindrical workpiece of Ti-6Al-4V additive manufactured by Selective Laser Melting (SLM) technique. Secondary machining is described as the operations that are performed on the workpiece after a primary machining in order to achieve a required finish and form. Common secondary operations after drilling includes threading, reaming and knurling. Threading is a significant machining process in almost all applications of Titanium alloys. The development of an efficient threading process for Titanium alloys and enhancing existing methods may lead to a wider application of additive manufactured Titanium alloys. The aim of this research is to find out favorable threading conditions for Titanium alloy Ti-6Al-4V to obtain better machinability. Threads are tapped into the workpiece using variable machining parameters such as spindle speed and depth of cut. Statistical data are collected and analyzed by qualitative and quantitative evaluation of the threads. The outputs under consideration to evaluate efficiency of the secondary machining include surface texture (roughness (Ra)), dimensional accuracy (thread geometry) and power required (cutting force).

You might also be interested in these eBooks

View Preview

View Preview

Info:

Periodical:

Key Engineering Materials (Volume 779)

Pages:

149-152

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.779.149

Citation:

Cite this paper

Online since:

September 2018

Authors:

Ashwin Polishetty*, Basil Raju, Guy Littlefair

Keywords:

Additive Manufacturing, Secondary Machining, Thread Pitch, Threading, Titanium Alloy Ti-6Al-4V

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

* - Corresponding Author

References

[1] J. Lin et al., Microstructural evolution and mechanical property of Ti-6Al-4V wall deposited by continuous plasma arc additive manufacturing without post heat treatment,, Journal of the Mechanical Behavior of Biomedical Materials, vol. 69, pp.19-29, 2017/05/01/ (2017).

DOI: 10.1016/j.jmbbm.2016.12.015

Google Scholar

[2] A. Polishetty, M. Shunmugavel, M. Goldberg, G. Littlefair, and R. K. Singh, Cutting Force and Surface Finish Analysis of Machining Additive Manufactured Titanium Alloy Ti-6Al-4V,, Procedia Manufacturing, vol. 7, pp.284-289, 2017/01/01/ (2017).

DOI: 10.1016/j.promfg.2016.12.071

Google Scholar

[3] G. Lutjering and J. C. Williams, Titanium (Engineering Materials and Processes). Springer-Verlag Berling Heidelberg, (2007).

Google Scholar

[4] Y.-K. Ahn et al., Mechanical and microstructural characteristics of commercial purity titanium implants fabricated by electron-beam additive manufacturing,, Materials Letters, vol. 187, pp.64-67, 2017/01/15/ (2017).

DOI: 10.1016/j.matlet.2016.10.064

Google Scholar

[5] S. H. Huang, P. Liu, A. Mokasdar, and L. Hou, Additive manufacturing and its societal impact: a literature review,, The International Journal of Advanced Manufacturing Technology, vol. 67, no. 5, pp.1191-1203, 2013/07/01 (2013).

DOI: 10.1007/s00170-012-4558-5

Google Scholar

[6] S. Mellor, L. Hao, and D. Zhang, Additive manufacturing: A framework for implementation,, International Journal of Production Economics, vol. 149, pp.194-201, 2014/03/01/ (2014).

DOI: 10.1016/j.ijpe.2013.07.008

Google Scholar

[7] Q. Li, I. Kucukkoc, and D. Z. Zhang, Production planning in additive manufacturing and 3D printing,, Computers & Operations Research, vol. 83, pp.157-172, 2017/07/01/ (2017).

DOI: 10.1016/j.cor.2017.01.013

Google Scholar

[8] F. Bartolomeu et al., 316L stainless steel mechanical and tribological behavior—A comparison between selective laser melting, hot pressing and conventional casting,, Additive Manufacturing, vol. 16, pp.81-89, 2017/08/01/ (2017).

DOI: 10.1016/j.addma.2017.05.007

Google Scholar