A5045253804- Welding Techniques and Residual Stresses
- Laser Material Processing Techniques
- Advanced Welding Techniques Analysis
- Advancements in Materials Engineering
- Physics and Engineering Research Articles
- Injection Molding Process and Properties
- Mechanical and Thermal Properties Analysis
- Tribology and Lubrication Engineering
- Mechanical stress and fatigue analysis
- Electrical Contact Performance and Analysis
- Material Properties and Applications
- Fatigue and fracture mechanics
- Engineering and Materials Science Studies
- Luminescence Properties of Advanced Materials
- Advanced ceramic materials synthesis
- 3D IC and TSV technologies
- Laser and Thermal Forming Techniques
- Civil and Structural Engineering Research
- High Temperature Alloys and Creep
- Metallurgy and Material Forming
- Manufacturing Process and Optimization
Laserline (Germany)
2022-2023
RWTH Aachen University
2018
For millennia, ceramics have been densified via sintering in a furnace, time-consuming and energy-intensive process. The need to minimize environmental impact calls for new physical concepts beyond large kilns relying on thermal radiation insulation. Here, we realize ultrarapid heating with intense blue UV-light. Thermal management is quantified experiment finite element modelling features balance between absorbed radiated energy. With photon energy above the band gap optimize absorption,...
In the recent years, laser beam welding has become an established joining process, especially for components in electrical powertrain (copper applications). However, of copper is generally considered to be difficult, particularly due its high heat conductivity and low absorptivity using sources with a wavelength 1 μm. The resulting welds show numerous weld defects, such as pores spatters. Using “blue” lasers 450 nm promises smoother process less Therefore, blue diode increased materials was...
Abstract Within the last years an increasing demand of copper components was observed, especially in fields energy transition, e-mobility, or digitalization. For joining those components, laser welding has become more and popular. Infrared lasers are commonly used for metal welding. They characterized by a low absorptivity solid at room temperature. In contrast, blue wavelength spectrum significantly higher absorptivity. This facilitates initial input into material makes process efficient....