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Reettiporn Thongpron.. The investigation of remelting process in selective laser melting 3D printing of Ti-6Al-4V in multi-track melting by using CFD simulation. Master's Degree(Materials and Production Engineering (International Program)). King Mongkut's University of Technology North Bangkok. Central Library. : King Mongkut's University of Technology North Bangkok, 2024.
The investigation of remelting process in selective laser melting 3D printing of Ti-6Al-4V in multi-track melting by using CFD simulation
Name: Reettiporn Thongpron.
keyword:
Selective laser melting.
LCSH:
Founding.
Abstract:
The Selective Laser Melting (SLM) process is a promising additive manufacturing
technology for producing complex metal parts. However, this process has certain limitations,
including lack of fusion and defects, which can hinder its industrial applications. These
challenges can be addressed by determining the appropriate overlap percentage parameters.
This study used numerical simulation to explore the effect of overlap percentage on multi-track melting in the SLM process for Ti-6Al-4V. The simulation results categorize the multi-track melting morphologies into two distinct groups. The first group, (0-40% overlap), displays consistent surface roughness with an average Ra value of 7 um. In contrast, the second group (50-60% overlap), shows non-uniform shapes. Specifically, the three central tracks in this group present an Ra value of approximately 4 pm. However, when all five tracks of this group are taken into account, the average Ra rises to 14 um. These differences in surface roughness can be attributed to factors like energy density and the Marangoni effect. Both melt pool depth
and shrinkage depth in the overlap area are significant as they night contribute to the risk of the lack of fusion defects. The insights from this research hold potential in shaping scanning pattern strategy design.
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Name: Pruet Kowitwarangkul
Role:
thesis advisor.
Email :
pruet.k.mme@tggs-kangkok.org
Name: Prasert Chalermkarnnon
Role:
thesis advisor.
Created:
2024
Modified:
2568-08-28
Issued:
2025-08-28
วิทยานิพนธ์/Thesis
application/pdf
eng
DegreeName: Master of Engineering
Level: Master's Degree
©copyrights King Mongkut's University of Technology North Bangkok
RightsAccess:
ใช้เวลา
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Reettiporn Thongpron.
| Title | Contributor | Type |
|---|---|---|
| The investigation of remelting process in selective laser melting 3D printing of Ti-6Al-4V in multi-track melting by using CFD simulation
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Reettiporn Thongpron. | Pruet Kowitwarangkul Prasert Chalermkarnnon | วิทยานิพนธ์/Thesis |
Pruet Kowitwarangkul
Prasert Chalermkarnnon
| Title | Creator | Type and Date Create |
|---|---|---|
| Multi-physics simulation of thermal-fluid-mechanical behaviors in laser powder bed fusion process
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Pruet Kowitwarangkul;Prasert Chalermkarnnon | Patiparn Ninpetch | วิทยานิพนธ์/Thesis |
| The investigation of remelting process in selective laser melting 3D printing of Ti-6Al-4V in multi-track melting by using CFD simulation
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Pruet Kowitwarangkul;Prasert Chalermkarnnon | Reettiporn Thongpron. | วิทยานิพนธ์/Thesis |