Skip to Main Content
 

Global Search Box

 
 
 

ETD Abstract Container

Abstract Header

The Effect of Laser Power and Scan Speed on Melt Pool Characteristics of Pure Titanium and Ti-6Al-4V alloy for Selective Laser Melting

Kusuma, Chandrakanth
http://orcid.org/0000-0003-2145-8443
http://rave.ohiolink.edu/etdc/view?acc_num=wright1464271345

Abstract Details

2016, Master of Science in Mechanical Engineering (MSME), Wright State University, Mechanical Engineering.
Selective Laser Melting (SLM) is an additive manufacturing (AM) technique that creates complex parts by selectively melting metal powder layer-by-layer. In SLM, the process parameters decide the quality of the fabricated component. In this study, single beads of commercially pure titanium (CP-Ti) and Ti-6Al-4V alloy are melted on a substrate of the same material as powder using an in-house built SLM machine. Multiple combinations of laser power and scan speed are used for single bead fabrication while the laser beam diameter and powder layer thickness are kept constant. This experimental study investigates the influence of laser power, scan speed and laser energy density on the melt pool formation, surface morphology, geometry (width, depth, and height) and hardness of melt pools. The results show that the quality, geometry, and hardness of melt pool is significantly affected by laser power, scanning speed and laser energy density. In addition, the observed unfavorable effects such as inconsistent melt pool formation, balling, porosity are discussed in detail. At the end, suggestions are provided to use optimal parameters to avoid such unfavorable effects.
Ahsan Mian, Ph.D. (Advisor)
Henry D. Young, Ph.D. (Committee Member)
Ha-Rok Bae, Ph.D. (Committee Member)
127 p.
Mechanical Engineering
additive manufacturing; selective laser melting; melt pool characteristics

Recommended Citations

Citations

  • Kusuma, C. (2016). The Effect of Laser Power and Scan Speed on Melt Pool Characteristics of Pure Titanium and Ti-6Al-4V alloy for Selective Laser Melting [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1464271345

    APA Style (7th edition)

  • Kusuma, Chandrakanth. The Effect of Laser Power and Scan Speed on Melt Pool Characteristics of Pure Titanium and Ti-6Al-4V alloy for Selective Laser Melting . 2016. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1464271345.

    MLA Style (8th edition)

  • Kusuma, Chandrakanth. "The Effect of Laser Power and Scan Speed on Melt Pool Characteristics of Pure Titanium and Ti-6Al-4V alloy for Selective Laser Melting ." Master's thesis, Wright State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright1464271345

    Chicago Manual of Style (17th edition)

wright1464271345
12,962
© 2016, all rights reserved.
This open access ETD is published by Wright State University and OhioLINK.