Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Application of infrared imaging for quality inspection in resistance spot welds

[+] Author Affiliations
Wanchuck Woo

Oak Ridge National Lab. (USA) and Korea Atomic Energy Research Institute (Korea, Republic of)

Charles W. Chin

Johns Hopkins Univ. (USA)

Zhili Feng, Hsin Wang, Wei Zhang, Hanbing Xu, Philip S. Sklad

Oak Ridge National Lab. (USA)

Proc. SPIE 7299, Thermosense XXXI, 729912 (May 1, 2009); doi:10.1117/12.818368
Text Size: A A A
From Conference Volume 7299

  • Thermosense XXXI
  • Douglas D. Burleigh; Ralph B. Dinwiddie
  • Orlando, Florida, USA | April 13, 2009

abstract

Infrared thermal imaging method was applied for the development of a non-destructive inspection technique to determine the quality of resistance spot welds. The current work is an initial feasibility study based on post-mortem inspection. First, resistance spot welds were fabricated on dual phase steel sheets (DP 590 steel) with carefullycontrolled welding parameters. It created welds with desirable and undesirable qualities in terms of nugget size, indentation depth, and voids and cracks. Second, five different heating and cooling methods were evaluated. The heating or cooling source was applied on one side of the weld stack while the surface temperature change on the other side of the weld was recorded using an infrared camera. Correlation between the weld quality and the "thermal signature" of each weld was established. Finally, a simplified thermal finite element analysis was developed to simulate the heat flow during inspection. The thermal model provided insight into the effect of the nugget size and indentation depth on the peak temperature and heating rate. The results reported in this work indicate that the IR thermography technique is feasible for weld quality inspection due to the distinguish temperature profiles for different welds and the repeatability and consistency in measurement.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Wanchuck Woo ; Charles W. Chin ; Zhili Feng ; Hsin Wang ; Wei Zhang, et al.
"Application of infrared imaging for quality inspection in resistance spot welds", Proc. SPIE 7299, Thermosense XXXI, 729912 (May 1, 2009); doi:10.1117/12.818368; http://dx.doi.org/10.1117/12.818368


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement


  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.