Solidification model of laser cladding with wire feeding technique

Chien Fu Hung, Jehnming Lin

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A fluid dynamic computation scheme was used to solve the solidification problem for 304 stainless steel wires cladding on round tubes in laser wire cladding. In a series of tests, the formation of the clad profile of the wire cladding was photographed in the side view by a high speed charge coupled device camera at various time steps. Clad temperature was simultaneously measured by an infrared spectrometer. Clad profiles were photographed in the top view at different velocities. Thinning was induced when the wire velocity was less than the tube velocity. Conversely, thickening was induced when the wire velocity was larger than the tube velocity. A wave-like thickness resulted when the wire velocity was much larger than the tube velocity. Furthermore, the wave-like thickness of the clad profile was significantly affected by the melting area during clad solidification. Reductions in both the clad height and the clad width were strongly dependent on the substrate velocity, with the effect on the former significantly greater.

Original languageEnglish
Pages (from-to)140-146
Number of pages7
JournalJournal of Laser Applications
Volume16
Issue number3
DOIs
Publication statusPublished - 2004 Jan 1

Fingerprint

Laser cladding
solidification
Solidification
wire
Wire
Metal cladding
lasers
tubes
profiles
Infrared spectrometers
High speed cameras
Stainless Steel
infrared spectrometers
fluid dynamics
CCD cameras
Fluid dynamics
stainless steels
charge coupled devices
Melting
Stainless steel

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering
  • Instrumentation

Cite this

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abstract = "A fluid dynamic computation scheme was used to solve the solidification problem for 304 stainless steel wires cladding on round tubes in laser wire cladding. In a series of tests, the formation of the clad profile of the wire cladding was photographed in the side view by a high speed charge coupled device camera at various time steps. Clad temperature was simultaneously measured by an infrared spectrometer. Clad profiles were photographed in the top view at different velocities. Thinning was induced when the wire velocity was less than the tube velocity. Conversely, thickening was induced when the wire velocity was larger than the tube velocity. A wave-like thickness resulted when the wire velocity was much larger than the tube velocity. Furthermore, the wave-like thickness of the clad profile was significantly affected by the melting area during clad solidification. Reductions in both the clad height and the clad width were strongly dependent on the substrate velocity, with the effect on the former significantly greater.",
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Solidification model of laser cladding with wire feeding technique. / Hung, Chien Fu; Lin, Jehnming.

In: Journal of Laser Applications, Vol. 16, No. 3, 01.01.2004, p. 140-146.

Research output: Contribution to journalArticle

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