World Journal of Engineering and Technology

Volume 5, Issue 1 (February 2017)

ISSN Print: 2331-4222   ISSN Online: 2331-4249

Google-based Impact Factor: 0.87  Citations  

Analysis of High-Power Diode Laser Heating Effects on HY-80 Steel for Laser Assisted Friction Stir Welding Applications

HTML  XML Download Download as PDF (Size: 2896KB)  PP. 97-112  
DOI: 10.4236/wjet.2017.51009    1,360 Downloads   2,005 Views  Citations

ABSTRACT

In this research, several conditions of high power diode laser heated HY-80 steel were characterized to determine the viability of using such lasers as a preheating source before friction stir welding in order to reduce frictional forces thereby reducing tool wear and increasing welding speeds. Differences in microstructures within heat affected zones were identified at specific laser powers and traverse speeds. Vickers hardness values were recorded and analyzed to validate the formation of additional martensite in diode laser heated regions of HY-80 steel. Conditions that produced little to no additional martensite were identified and relationships among high power diode laser power, traverse speed, and martensite formation were determined. The development of heat affected zones, change in grain structure, and creation of additional martensite in HY-80 can be prevented through the optimization of laser amperage and transverse speed.

Share and Cite:

Wiechec, M. , Baker, B. , McNelley, T. , Matthews, M. , Rubenchik, A. , Rotter, M. , Beach, R. and Wu, S. (2017) Analysis of High-Power Diode Laser Heating Effects on HY-80 Steel for Laser Assisted Friction Stir Welding Applications. World Journal of Engineering and Technology, 5, 97-112. doi: 10.4236/wjet.2017.51009.

Copyright © 2021 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.