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Effect of Process Parameters on Tribological Properties of Ti6Al4V Surfaces Manufactured by Selective Laser Melting

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A Correction to this article was published on 22 March 2021

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Abstract

Selective laser melting (SLM) is one of the most widely used metal additive manufacturing method which is based on powder bed fusion technology and provides opportunity to generate near net shape complex geometries from their CAD data. Surface quality of the SLM manufactured parts is highly affected by process parameters; however, effect of these parameters on the tribological properties has not been fully understood, and optimal process parameters have not been defined yet. In this study, four different SLM parameters; scanning angle, laser power, scanning speed and hatch distance were applied at three different levels for manufacturing Ti6Al4V disk samples as ball-on-disk test coupon. Dry sliding wear behavior of the samples against alumina counter balls were defined under 10 N loading. For determining optimal parameter set and defining the effect of each parameter on the tribological properties, Taguchi’s L9 orthogonal array and analysis of variance were used. The results were revealed that scanning angle was the most effective parameter on the tribological behavior of the SLM manufactured Ti6Al4V surfaces. Then scanning speed, laser power and hatch distance came, respectively.

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Acknowledgments

This study was supported by TUBİTAK 2209-B 2018/6 Program with the Project 1139B411801888. The authors were also supported by Ermaksan Makina Sanayi Ve Ticaret A.Ş. for SLM manufacturing of Ti6Al4V specimens.

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Authors and Affiliations

  1. Mechanical Engineering Department, Yildiz Technical University, 34349, Besiktas, Istanbul, Turkey

    Binnur Sagbas & Goktug Gencelli

  2. Ermaksan, Additive Manufacturing, 16065, Nilufer, Bursa, Turkey

    Ahmet Sever

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  1. Binnur Sagbas
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  2. Goktug Gencelli
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  3. Ahmet Sever
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Correspondence to Ahmet Sever.

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This invited article is part of a special topical focus in the Journal of Materials Engineering and Performance on Additive Manufacturing. The issue was organized by Dr. William Frazier, Pilgrim Consulting, LLC; Mr. Rick Russell, NASA; Dr. Yan Lu, NIST; Dr. Brandon D. Ribic, America Makes; and Caroline Vail, NSWC Carderock.

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Sagbas, B., Gencelli, G. & Sever, A. Effect of Process Parameters on Tribological Properties of Ti6Al4V Surfaces Manufactured by Selective Laser Melting. J. of Materi Eng and Perform 30, 4966–4973 (2021). https://doi.org/10.1007/s11665-021-05573-y

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