Paper Title:
Experimental and Structural Analysis on Strength of Thermit Welding
  Abstract

War-broken parts could be repaired quickly without power and gas in the field by using the thermit welding technology. In this paper, experimental and structural analysis on strength of thermit welding was made. According to orthogonal experiments, the pressure mode was found to influence tensile stress most, then the warm-up temperature and the welding line clearance. By quadratic general revolving combination design, the mathematics equation indicating the relation of welding tensile stress, warm-up temperature, pressing time and welding line clearance was obtained, and the optimized welding parameters to achieve the best tensile strength were decided as well. By further analysis on microstructures and fractures of welded seam, fusion zone and HAZ of thermit steel, conclusion was made that it was of vital significance to adopt welding-after-peening method for improving the strength of the welded seam.

  Info
Periodical
Key Engineering Materials (Volumes 419-420)
Edited by
Daizhong Su, Qingbin Zhang and Shifan Zhu
Pages
393-396
DOI
10.4028/www.scientific.net/KEM.419-420.393
Citation
B. He, C. Q. Sun, "Experimental and Structural Analysis on Strength of Thermit Welding", Key Engineering Materials, Vols. 419-420, pp. 393-396, 2010
Online since
October 2009
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: Yue Qing Sun, Jian Zhong Zhou, Yi Bin Chen, Shu Huang
Abstract:Using Taguchi method to optimize the critical parameters of laser peening (LP) is presented firstly. The objective of the study is to assess...
692
Authors: Omar Hatamleh, Lloyd Hackel, Scott Forth
Abstract:The influence of laser peening on the fatigue crack growth behavior of friction stir welded (FSW) Aluminum Alloy (AA) 7075-T7351 sheets was...
675
Authors: Yu Jie Fan, Jian Zhong Zhou, Shu Huang, W. Wang, Deng Hui Wei, W. Zhu
Abstract:Microscale laser shock peening (μLSP) can generate beneficial compressive stress distribution in the targets, as the used beam diameter in...
336
Authors: Hua Wei Rong, Hyung Jim Kim, Won Jo Park
Abstract:At present, welding technology is not only emphasized in the development of manufacturing technology but also application is expanding. In...
681
Authors: Liang Chen Wu, Dong Po Wang
Chapter 1: Advanced Engineering Materials
Abstract:The fatigue tests of Q235B steel unload longitudinal fillet welded joints containing high welding residual stress were carried out. And the...
337