研究目的
To overcome manufacturing gaps between 2D panels and 3D sections in shipbuilding by developing a novel Low Laser Power Hybrid (LLPH) technology that reduces distortion-related post-processing and enables manufacturing of thin-walled lightweight constructions.
研究成果
The novel Low Laser Power Hybrid (LLPH) technology significantly reduces distortions and post-processing efforts, enabling the manufacturing of thin-walled lightweight constructions. It is suitable for all gap conditions up to 5 mm gap width, with an average increase in weld speed of about 94% and a reduction in energy input per unit length of about 32% compared to the GMAW process. The technology is applicable to any large scaled sheet metal application beyond shipbuilding.
研究不足
The technology is limited to gap widths up to 5 mm and requires a local and easy-to-use protection due to safety regulations. The laser power is limited to 2 kW.
1：Experimental Design and Method Selection:
The study combines construction, process, equipment, and additive manufacturing knowledge in the project “ShipLight”. It includes the development of a novel LLPH technology for shipbuilding.
2：Sample Selection and Data Sources:
Samples consist of the most common shipyard sheet materials S355 and A36, with sheet thicknesses of 3 mm, 5 mm, and 7 mm, prepared according to shipyard standards.
3：List of Experimental Equipment and Materials:
The setup combines a continuous wave Ytterbium fiber laser or a diode laser with a GMAW source, laser optics, and a coaxial process monitoring unit with camera-based real-time seam tracking.
4：Experimental Procedures and Operational Workflow:
A wide-spread design of experiments is framed to identify the minimum achievable energy input per unit length for various gap widths and weld speeds.
5：Data Analysis Methods:
Cross sections, geometry analysis, and hardness tests are performed to evaluate the studied parameter setting.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
