Effect of laser power and powder flow rate on dilution rate and surface finish produced during laser metal deposition of Titanium alloy

Rasheedat M. Mahamood; Esther T. Akinlabi; Moses G. Owolabi

doi:10.1109/ICMIMT.2017.7917405

Effect of laser power and powder flow rate on dilution rate and surface finish produced during laser metal deposition of Titanium alloy

Rasheedat M. Mahamood
, Esther T. Akinlabi
, Moses G. Owolabi

Mechanical Engineering Science

University of Johannesburg
Howard University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

17 Citations (Scopus)

Abstract

The influence of processing parameters on the resulting properties of laser metal deposition process cannot be overemphasized. In this research, the influence of laser power and powder flow rate on the dilution and surface roughness value produced are critically studied The laser power was set between 1.8 kW and 3.0 kW, while the powder flow rate was set between 2.88 and 5.76 g/min. The scanning speed and the gas flow rate were maintained at constant values of 0.05m/s and 4l/min respectively. The study revealed that, as the laser power was increased, the degree of dilution increases but the average surface roughness value decreases. Also, as the powder flow rate was increased, the dilution decreases and the average surface roughness increases. The study shows that it is important to keep the powder flow rare low so as to achieve a better surface finished and also not to use too high laser power as this will result in higher dilution, which is not desirable in the laser additive manufacturing process because it will affect the dimensional accuracy of the part under processing.

Original language	English
Title of host publication	Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	6-10
Number of pages	5
ISBN (Electronic)	9781538603772
DOIs	https://doi.org/10.1109/ICMIMT.2017.7917405
Publication status	Published - 2 May 2017
Event	8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017 - Cape Town, South Africa Duration: 3 Feb 2017 → 6 Feb 2017

Publication series

Name	Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017

Conference

Conference	8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017
Country/Territory	South Africa
City	Cape Town
Period	3/02/17 → 6/02/17

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Keywords

additive manufacturing
dilution
laser metal deposition
processing parameter
surface roughness
titanium alloy

ASJC Scopus subject areas

Artificial Intelligence
Computer Science Applications
Mechanical Engineering
Industrial and Manufacturing Engineering

Access to Document

10.1109/ICMIMT.2017.7917405

Cite this

Mahamood, R. M., Akinlabi, E. T., & Owolabi, M. G. (2017). Effect of laser power and powder flow rate on dilution rate and surface finish produced during laser metal deposition of Titanium alloy. In Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017 (pp. 6-10). Article 7917405 (Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICMIMT.2017.7917405

Mahamood, Rasheedat M. ; Akinlabi, Esther T. ; Owolabi, Moses G. / Effect of laser power and powder flow rate on dilution rate and surface finish produced during laser metal deposition of Titanium alloy. Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 6-10 (Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017).

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title = "Effect of laser power and powder flow rate on dilution rate and surface finish produced during laser metal deposition of Titanium alloy",

abstract = "The influence of processing parameters on the resulting properties of laser metal deposition process cannot be overemphasized. In this research, the influence of laser power and powder flow rate on the dilution and surface roughness value produced are critically studied The laser power was set between 1.8 kW and 3.0 kW, while the powder flow rate was set between 2.88 and 5.76 g/min. The scanning speed and the gas flow rate were maintained at constant values of 0.05m/s and 4l/min respectively. The study revealed that, as the laser power was increased, the degree of dilution increases but the average surface roughness value decreases. Also, as the powder flow rate was increased, the dilution decreases and the average surface roughness increases. The study shows that it is important to keep the powder flow rare low so as to achieve a better surface finished and also not to use too high laser power as this will result in higher dilution, which is not desirable in the laser additive manufacturing process because it will affect the dimensional accuracy of the part under processing.",

keywords = "additive manufacturing, dilution, laser metal deposition, processing parameter, surface roughness, titanium alloy",

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note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017 ; Conference date: 03-02-2017 Through 06-02-2017",

year = "2017",

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doi = "10.1109/ICMIMT.2017.7917405",

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Mahamood, RM, Akinlabi, ET & Owolabi, MG 2017, Effect of laser power and powder flow rate on dilution rate and surface finish produced during laser metal deposition of Titanium alloy. in Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017., 7917405, Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017, Institute of Electrical and Electronics Engineers Inc., pp. 6-10, 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017, Cape Town, South Africa, 3/02/17. https://doi.org/10.1109/ICMIMT.2017.7917405

Effect of laser power and powder flow rate on dilution rate and surface finish produced during laser metal deposition of Titanium alloy. / Mahamood, Rasheedat M.; Akinlabi, Esther T.; Owolabi, Moses G.
Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 6-10 7917405 (Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Effect of laser power and powder flow rate on dilution rate and surface finish produced during laser metal deposition of Titanium alloy

AU - Mahamood, Rasheedat M.

AU - Akinlabi, Esther T.

AU - Owolabi, Moses G.

PY - 2017/5/2

Y1 - 2017/5/2

N2 - The influence of processing parameters on the resulting properties of laser metal deposition process cannot be overemphasized. In this research, the influence of laser power and powder flow rate on the dilution and surface roughness value produced are critically studied The laser power was set between 1.8 kW and 3.0 kW, while the powder flow rate was set between 2.88 and 5.76 g/min. The scanning speed and the gas flow rate were maintained at constant values of 0.05m/s and 4l/min respectively. The study revealed that, as the laser power was increased, the degree of dilution increases but the average surface roughness value decreases. Also, as the powder flow rate was increased, the dilution decreases and the average surface roughness increases. The study shows that it is important to keep the powder flow rare low so as to achieve a better surface finished and also not to use too high laser power as this will result in higher dilution, which is not desirable in the laser additive manufacturing process because it will affect the dimensional accuracy of the part under processing.

AB - The influence of processing parameters on the resulting properties of laser metal deposition process cannot be overemphasized. In this research, the influence of laser power and powder flow rate on the dilution and surface roughness value produced are critically studied The laser power was set between 1.8 kW and 3.0 kW, while the powder flow rate was set between 2.88 and 5.76 g/min. The scanning speed and the gas flow rate were maintained at constant values of 0.05m/s and 4l/min respectively. The study revealed that, as the laser power was increased, the degree of dilution increases but the average surface roughness value decreases. Also, as the powder flow rate was increased, the dilution decreases and the average surface roughness increases. The study shows that it is important to keep the powder flow rare low so as to achieve a better surface finished and also not to use too high laser power as this will result in higher dilution, which is not desirable in the laser additive manufacturing process because it will affect the dimensional accuracy of the part under processing.

KW - additive manufacturing

KW - dilution

KW - laser metal deposition

KW - processing parameter

KW - surface roughness

KW - titanium alloy

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DO - 10.1109/ICMIMT.2017.7917405

M3 - Conference contribution

AN - SCOPUS:85020013703

T3 - Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017

SP - 6

EP - 10

BT - Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017

Y2 - 3 February 2017 through 6 February 2017

ER -

Mahamood RM, Akinlabi ET, Owolabi MG. Effect of laser power and powder flow rate on dilution rate and surface finish produced during laser metal deposition of Titanium alloy. In Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 6-10. 7917405. (Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017). doi: 10.1109/ICMIMT.2017.7917405

Effect of laser power and powder flow rate on dilution rate and surface finish produced during laser metal deposition of Titanium alloy

Abstract

Publication series

Conference

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

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