Browse > Article
http://dx.doi.org/10.5781/JWJ.2017.35.3.5

A Study on Surface and Cross-section Properties Depending on the Process Parameters of Laser Depositions with Metal Powders (SUS316L and IN718)  

Hwang, JunHo (Institute of Advanced Convergence Technology, Kyungpook Nat. Univ.)
Shin, SeongSeon (Institute of Advanced Convergence Technology, Kyungpook Nat. Univ.)
Lee, JongHoon (Institute of Advanced Convergence Technology, Kyungpook Nat. Univ.)
Kim, SungWook (Materials Solution Research Group, Research Institute of Industrial & Technology)
Kim, HyunDeok (Institute of Advanced Convergence Technology, Kyungpook Nat. Univ.)
Publication Information
Journal of Welding and Joining / v.35, no.3, 2017 , pp. 28-34 More about this Journal
Abstract
The authors derived the criteria on the process parameters of laser depositions with metal powers(SUS316L & IN718) by evaluating the surface and cross-section properties of the deposition layers. The surface characteristics of the deposition layer are investigated through optical microscopy by controlling the process parameters of laser output, powder feeding rate and gas feeding rate. The cross-section characteristics were also analyzed after polishing and chemical etching process. As the gas feeding rate increased, the amount of powder loss increased and the difference in the dilution ratio and heat affected zone depending on laser outputs was observed. In addition, the powder feeding rate used in the experiment did not interfere with the energy absorption of the base material.
Keywords
Metal powder; Laser deposition; Laser output; Powder feeding rate; Gas feeding rate; Deposition surface; Deposition cross-section; Dilution;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 ASTM(American Society for Testing and Materials), F2792-12a, Standard Terminology for Additive Manufacturing Technologies
2 Terner Mathieu, The Current State, Outcome and Vision of Additive Manufacturing, J. of Welding and Joining, 33 (6) (2015), 496-499
3 G. K. Lewis and E. Schlienger, Practical considerations and capabilities for laser assisted direct metal deposition, Materials & Design, 21(4) (2000), 417-423   DOI
4 Wei Ya, Laser materials interactions during cladding, Analyses on clad formation, thermal cycles, residual stress and defects, materials innovation institute, PhD Thesis in the University of Twente, (2015), 5-9
5 Min-Cheol Kang, Dea-Hee Ye and Geun-Ho Go, International Development Trend and Technical Issues of Metal Additive Manufacturing, J. of Welding and Joining, 34 (4) (2016), 9-16 (in Korean)   DOI