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Article
Effect of Laser Power and Scan Speed on Melt Pool Characteristics of Commercially Pure Titanium (CP-Ti)
Journal of Materials Engineering and Performance
  • Chandrakanth Kusuma, Wright State University - Main Campus
  • Sazzad H. Ahmed, Wright State University - Main Campus
  • Ahsan Mian, Wright State University - Main Campus
  • Raghavan Srinivasan, Wright State University - Main Campus
Document Type
Article
Publication Date
7-1-2017
Abstract

Selective laser melting (SLM) is an additive manufacturing technique that creates complex parts by selectively melting metal powder layer-by-layer using a laser. In SLM, the process parameters decide the quality of the fabricated component. In this study, single beads of commercially pure titanium (CP-Ti) were melted on a substrate of the same material using an in-house built SLM machine. Multiple combinations of laser power and scan speed were used for single bead fabrication, while the laser beam diameter and powder layer thickness were kept constant. This experimental study investigated the influence of laser power, scan speed, and laser energy density on the melt pool formation, surface morphology, geometry (width and height), and hardness of solidified beads. In addition, the observed unfavorable effect such as inconsistency in melt pool width formation is discussed. The results show that the quality, geometry, and hardness of solidified melt pool are significantly affected by laser power, scanning speed, and laser energy density.

DOI
10.1007/s11665-017-2768-6
Citation Information
Chandrakanth Kusuma, Sazzad H. Ahmed, Ahsan Mian and Raghavan Srinivasan. "Effect of Laser Power and Scan Speed on Melt Pool Characteristics of Commercially Pure Titanium (CP-Ti)" Journal of Materials Engineering and Performance Vol. 26 Iss. 7 (2017) p. 3560 - 3568 ISSN: 1059-9495
Available at: http://works.bepress.com/raghavan_srinivasan/108/