| Issue |
MATEC Web Conf.
Volume 175, 2018
2018 International Forum on Construction, Aviation and Environmental Engineering-Internet of Things (IFCAE-IOT 2018)
|
|
|---|---|---|
| Article Number | 01029 | |
| Number of page(s) | 4 | |
| Section | Construction Materials | |
| DOI | https://doi.org/10.1051/matecconf/201817501029 | |
| Published online | 02 July 2018 | |
Effect of Heat Input on Porosity in High Nitrogen Steel Composite Welds
1
College of Mechanical and Electric Engineering, Changchun University of Science and Technology, Changchun, Jilin Province, China
2
College of Automible and Civil Engineering, Beihua University, Jilin, Jilin Province, China
3
Engineering Research Center of Laser Processing for Universities of Jilin Province, Changchun University of Science and Technology, Changchun, Jilin Province, China
4
National Base of International Science and Technology Cooperation in Optics, Changchun University of Science and Technology, Changchun, Jilin Province, China
* Corresponding author: h_zhangcust@126.com
High-nitrogen steel plates with a thickness of 8 mm are welded with a laser-arc composite heat source for experiment to study the impact of different heat input parameters on the blowhole defect. The results show that with the increase of laser power, welding current and arc voltage, the porosity of welds decreases; with the increase of welding speed, the porosity of welds increases. Appropriately increasing the heat input helps reduce the porosity of the weld.
© The Authors, published by EDP Sciences 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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