Paper Title:
Temperature Gradient and Heat Conduction of Titanium Alloy during Laser Welding
  Abstract

This paper set a numerical calculation model with local mesh refined for laser welding of titanium alloy applying body heat source model which can accurately describe the shape of keyhole and molten pool on laser welded joint. It calculated the change patterns of the temperature distribution and heat conduction in region of gas, liquid, and solid phase under different laser energy density on the stage of heating and cooling. The results showed that with the increase of the laser energy density t, the dimension of keyhole and molten pool, the temperature gradient and the duration of gas and liquid phase on the stage of heating and cooling are all expected to increase. Under the same laser energy density, temperature gradient has a maximum value in the region of gas phase, secondly is in liquid phase, and minimum in solid phase.

  Info
Periodical
Advanced Materials Research (Volumes 154-155)
Edited by
Zhengyi Jiang, Xianghua Liu and Jinglong Bu
Pages
42-45
DOI
10.4028/www.scientific.net/AMR.154-155.42
Citation
K. R. Zhang, J. X. Zhang, "Temperature Gradient and Heat Conduction of Titanium Alloy during Laser Welding", Advanced Materials Research, Vols. 154-155, pp. 42-45, 2011
Online since
October 2010
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Price
$32.00
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