Paper Title:
Influences of Latent Heat and Butt Gap on Temperature Field and Melting Pool Shape in Laser Brazing of Beryllium
  Abstract

With considering the geometry characteristic of laser brazing and analyzing the action features of heat source in laser brazing, an adaptive heat source mode is constructed to simulate the dynamic response of temperature field and flow field of beryllium irradiated by a moving laser. And the shape of fusion zone and thermal cycle curve calculated agree well with the experimental results, it indicate that the proposed model is appropriate and adaptive in simulating the dynamic response of melting pool. Further, influences of latent heat of fusion and butt gap on temperature field and melting pool shape is analyzed by means of the method of numerical Analysis. The results show that the effects of the latent heat are not negligible. In particular, the influence of the latent heat is more violent under moving laser beam action than under stationary laser beam. And the predicted profile of melting pool which taking butt gap into account is more close to that of experimental results.

  Info
Periodical
Advanced Materials Research (Volumes 189-193)
Edited by
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
Pages
3525-3529
DOI
10.4028/www.scientific.net/AMR.189-193.3525
Citation
P. A. Shi, "Influences of Latent Heat and Butt Gap on Temperature Field and Melting Pool Shape in Laser Brazing of Beryllium", Advanced Materials Research, Vols. 189-193, pp. 3525-3529, 2011
Online since
February 2011
Authors
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ping Dong, Rui Wen Li
Abstract:The assembled tube was made of beryllium tube and tungsten tube, and was produced by over fitting. The residual stresses in the assembled...
963
Authors: Seyed Ali Asghar Akbari Mousavi, S.T. Niknejad
Abstract:In this study, the microstructure of Nd:YAG pulsed laser weld of C17200 copper beryllium alloy is investigated by optical microscopy,...
392
Authors: Mohammad Hadi Kamrava, Farzad Bazdidi-Tehrani
Chapter 1: Materials Behavior
Abstract:In all industries which are related to heat, suitable thermal ranges are defined for each device to operate well. Consideration of these...
23
Authors: Hao Ran Cao, Rong Hua Huang, Jun Heng Li
Chapter 4: Nuclear Energy and Nuclear Engineering
Abstract:The thermo-hydraulic performance of the first wall for CH HCSB TMB was investigated, corresponding analysis have been carried out using CFX,...
681
Authors: Elena Muncut, Ion Aurel Perianu, Dan Glavan, Gheorghe Sima
Abstract:The work includes work steps for joining thin sheets with a thickness ranging from1.0 mm (according to EN10327-2004). The study presents the...
49