Influence of heat source power and welding speed on the tensile strength of hybrid welds
amartin.petreski@mf.edu.mk- bdobre.runchev@mf.edu.mk
- cgligorche.vrtanoski@mf.edu.mk
- daleksandra.krstevska@mf.edu.mk
a0000-0001-6308-3366- b0000-0001-7657-1799
- c0009-0000-1318-015X
- d0000-0002-5596-6596
- DOI: 10.65156/wws.sjdp.si.024
- Article Type: Original scientific paper
- Language: English/Serbian
- Received: March 2026
- Accepted: July 2026
Abstract
Hybrid welding processes are widely used to achieve high-quality joints by combining multiple heat sources, enabling deeper penetration and improved mechanical characteristics. This study investigates the influence of laser beam power 11.5–13 (kW), welding speed 1.8–2.2 (m/min), and welding current 303–329 (A) on the tensile strength of hybrid laser–arc welds on structural steel S355J2 with thickness of 12 (mm). A multi-factor experimental approach was applied. The mathematical models show that all three process parameters significantly influence the tensile strength of hybrid welds. Laser beam power and welding current have a positive effect, whereas welding speed exhibits a negative influence. However, the negative effect of welding speed can be mitigated through its positive interaction with welding current, leading to improved overall weld performance.
Keywords
hybrid weld, tensile strength, laser power, welding current
References
Under construction
Open Access and Licensing
This article is published under the Creative Commons Attribution ShareAlike 4.0 International license (CC BY-SA 4.0). The authors retain copyright and grant the journal the non-exclusive right to publish, distribute, archive and identify the article as the original published version.