Warning: fopen(/home/virtual/kwjs/journal/upload/ip_log/ip_log_2024-05.txt): failed to open stream: Permission denied in /home/virtual/lib/view_data.php on line 88
Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/virtual/lib/view_data.php on line 89
-
1
-
Journal of KWJS. 2012;30(6):56-61. Published online December 23, 2012.
DOI: https://doi.org/10.5781/KWJS.2012.30.6.56
- A Study on the Weldability of Magnesium Alloy by Laser Heat Source (Ⅱ)
- Mechanical Properties of laser-welded AZ31B-H24 and AZ31B-O -
-
Jung-Han Lee*, Jong-Do Kim**, Mun-Yong Lee*
-
- Corresponding author: Mun-Yong Lee ,Email: jdkim@hhu.ac.kr
- Abstract
- Magnesium alloy sheet which is commercially available in the market presently is AZ31B, a Mg-Al-Zn three elements alloy. AZ31B is used by being classified into AZ31B-H24 and AZ31B-O depending on temper designation. In this study, AZ31B-H24 and AZ31B-O alloy sheets with 1.25mm thickness were butt-welded using CW Nd:YAG laser. And the effect of materials on mechanical properties was investigated by tensile and hardness tests. As a result of this study, regardless of materials, the butt-welded joint did not show a significant difference in tensile strength and hardness values. However, compared with the basemetal, the AZ31B-O showed more outstanding mechanical properties than AZ31B-H24, and that is because H24 material lost the effect of work hardening during welding.
Keywords :AZ31B-H24, AZ31B-O, Nd:YAG laser, Butt welding, Mechanical property
