Laser polishing of additive manufactured tool steel components using pulsed or continuous-wave lasers

2019 ◽  
Vol 105 (1-4) ◽  
pp. 425-440 ◽  
Author(s):  
K. C. Yung ◽  
S. S. Zhang ◽  
L. Duan ◽  
H. S. Choy ◽  
Z. X. Cai
Keyword(s):  
Tool Steel ◽  
Continuous Wave ◽  
Laser Polishing

scholarly journals Laser polishing of tool steel using a continuous-wave laser assisted by a steady magnetic field

AIP Advances ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 025319 ◽  
Author(s):  
Haibing Xiao ◽  
Yongquan Zhou ◽  
Mingjun Liu ◽  
Xiaomei Xu
Keyword(s):  
Magnetic Field ◽  
Tool Steel ◽  
Continuous Wave ◽  
Continuous Wave Laser ◽  
Laser Polishing ◽  
Steady Magnetic Field ◽  
Wave Laser

Role of Capillary and Thermocapillary Forces in Laser Polishing of Metals

2017 ◽  
Vol 139 (4) ◽  
Author(s):  
Chi Zhang ◽  
Jing Zhou ◽  
Hong Shen
Keyword(s):  
Capillary Force ◽  
Molten Pool ◽  
Continuous Wave ◽  
Flow Behavior ◽  
Marangoni Effect ◽  
Cost Effective ◽  
Underlying Mechanism ◽  
Thermocapillary Force ◽  
Laser Polishing ◽  
Coupled Heat Transfer

As one of emerging novel surface treatment techniques, laser polishing offers a cost-effective and efficient solution to reduce surface roughness of precision components at micro-/mesoscale. Although it has been applied for industrial and biomedical purposes, the underlying mechanism has not been fully revealed. This paper presents a study to understand the basic fundamentals of continuous wave fiber laser polishing of Ti6Al4V samples. A two-dimensional numerical model that coupled heat transfer and fluid flow is developed to illustrate the molten flow behavior. The roles of capillary and thermocapillary flow in the process of laser polishing are investigated to assist the understanding of the contributions of surface tension (capillary force) and Marangoni effect (thermocapillary force) in the polishing process. Capillary force dominates the molten pool at the initial stage of melting, while thermocapillary force becomes predominant when the molten pool fully develops.

Influence of overlap between the laser beam tracks on surface quality in laser polishing of AISI H13 tool steel

2012 ◽  
Vol 14 (4) ◽  
pp. 425-434 ◽  
Author(s):  
Abdullah M. Khalid Hafiz ◽  
Evgueni V. Bordatchev ◽  
Remus O. Tutunea-Fatan
Keyword(s):  
Laser Beam ◽  
Surface Quality ◽  
Tool Steel ◽  
Laser Polishing ◽  
H13 Tool Steel ◽  
Aisi H13 ◽  
Aisi H13 Tool Steel

Effect of beam diameter on pulsed laser polishing of S7 tool steel

CIRP Annals ◽  
2014 ◽  
Vol 63 (1) ◽  
pp. 237-240 ◽  
Author(s):  
Frank E. Pfefferkorn ◽  
Neil A. Duffie ◽  
Justin D. Morrow ◽  
Qinghua Wang
Keyword(s):  
Tool Steel ◽  
Pulsed Laser ◽  
Beam Diameter ◽  
Laser Polishing

scholarly journals Thermo-Physical Modelling of Track Width During Laser Polishing of H13 Tool Steel

2017 ◽  
Vol 10 ◽  
pp. 708-719 ◽  
Author(s):  
Shirzad Mohajerani ◽  
Joshua D. Miller ◽  
O. Remus Tutunea-Fatan ◽  
Evgueni V. Bordatchev
Keyword(s):  
Tool Steel ◽  
Physical Modelling ◽  
Track Width ◽  
Laser Polishing ◽  
H13 Tool Steel
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