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Assessment of the machinability of Ti-6Al-4V alloy using the wear map approach

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Abstract

The high strength to density ratio of titanium alloys coupled with excellent corrosion resistance even at elevated temperatures make them ideal for aerospace applications. Moreover, the biocompatibility of titanium also enables its widespread use in the biomedical and food processing industries. However, the difficulty in machining titanium and its alloys along with the high cost of its extraction from ore form presents a major economic constraint. In the context of machining economics, the wear map approach is very useful in identifying the most suitable machining parameters over a feedrate–cutting velocity plane. To date, wear maps have only been prepared for the machining of ferrous alloys. In this article, a review of the machinability of Ti-6Al-4V alloy is presented with emphasis on comparing the wear performance of various tool materials. In addition, a new wear map for Ti-6Al-4V alloy is presented based on unified turning tests using H13A grade carbide inserts. This wear map can be used as a guide in the selection of cutting variables that ensure the least tool wear rates. This article contrasts the occurrence of a safety zone in the case of machining steels to that of an avoidance zone for Ti-6Al-4V alloy.

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Authors and Affiliations

  1. School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, Manchester, UK

    S. I. Jaffery & P. T. Mativenga

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  1. S. I. Jaffery
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  2. P. T. Mativenga
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Correspondence to S. I. Jaffery.

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Jaffery, S.I., Mativenga, P.T. Assessment of the machinability of Ti-6Al-4V alloy using the wear map approach. Int J Adv Manuf Technol 40, 687–696 (2009). https://doi.org/10.1007/s00170-008-1393-9

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  • DOI: https://doi.org/10.1007/s00170-008-1393-9

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