A5101856735- Advanced machining processes and optimization
- Advanced Surface Polishing Techniques
- Advanced Machining and Optimization Techniques
- High voltage insulation and dielectric phenomena
- Metallurgy and Material Forming
- Manufacturing Process and Optimization
- Thermal Analysis in Power Transmission
- Welding Techniques and Residual Stresses
- 3D IC and TSV technologies
- Additive Manufacturing Materials and Processes
- Metal Forming Simulation Techniques
- Aluminum Alloy Microstructure Properties
- Silicon Carbide Semiconductor Technologies
- Lightning and Electromagnetic Phenomena
- Collaboration in agile enterprises
- Magnetic properties of thin films
- Electronic Packaging and Soldering Technologies
- Metallic Glasses and Amorphous Alloys
- Operations Management Techniques
- Management Theory and Practice
- Offshore Engineering and Technologies
- Surface Treatment and Residual Stress
- Electrostatic Discharge in Electronics
- Structural Load-Bearing Analysis
- Aluminum Alloys Composites Properties
Chongqing University
2025
General Electric (Israel)
2024
Harbin Institute of Technology
2022-2023
GE Global Research (United States)
2023
Craft Group (China)
2013-2021
Beihang University
2019
University of Science and Technology Liaoning
2018
University of South China
2018
Nanjing General Hospital of Nanjing Military Command
2008
Zen-Noh (Japan)
2000
This paper presents a polarization-insensitive microwave power receiving composite metasurface array. The array consists of reflection phase gradient and horizontal omnidirectional antenna, with central operating frequency 5.8 GHz. elements are insensitive to the polarization incident wave arranged radially around center. configuration creates radial that efficiently converts plane waves different polarizations into surface converging toward energy is then extracted by antenna converted...
A high-speed milling experiment by means of orthogonal method with four factors was conducted for aluminum alloy 7050-T7451. The residual stresses (RS) on the surface and subsurface work piece were measured using X-ray diffraction technique electropolishing technology. exponent's mathematical model stress 7050-T7451 established related to machining parameters. predicted values compared data from experiments. effect cutting speed, feed rate, width depth cut investigated ANOVA techniques....
In the design of MV AC and DC spacers, predominant factors are surface interface conditions. Design is generally carried out on specifications standards which based long-term experience lab testing. However, diffusion power electronics with a trend to increase electric field, switching frequency, rise time achieve higher density calls for an innovative, global approach optimized insulation system design. A new methodology, field simulation, discharge modeling, partial inception measurements,...
External magnetic field has been employed to improve appearance and suppress defects in the single laser or arc welding, its physical mechanism magnetic-field-assisted welding clearly clarified. However, few studies on processes laser-arc hybrid (MFA-LAHW) are conducted influencing is unclear. In this research, a comprehensive three-dimension numerical model established investigate keyhole dynamics weld pool behaviors MFA-LAHW under effect of different flux density. The results suggest that...
Steady magnetic field with both orientations including longitudinal (LMF) and transverse (TMF) was used. The influence of LMF TMF on weld formation, porosity mechanical property 5052 aluminium alloy laser-gas metal arc (GMA) hybrid welding investigated. shielding effect plasmas laser energy weakened by TMF, leading to an increase in depth under TMF. Porosity rate significantly reduced 2.61% because keyhole stability improved, escaping channels for bubbles were increased, solidification time...
Traditional device packaging becomes a limiting factor in realizing the full performance potential of SiC. Thus, improved and advanced technologies are required to bridge gap between SiC devices' their applications. An additively printed electronics approach can enable power module interconnections. Printed being increasingly explored realm manufacturing, such as flexible hybrid electronics, they have found way into various aspects. However, for high-power high-performance is largely...
In order to investigate the effect of ultrasonic vibration and cutting conditions on surface quality accurately, grinding experiments SiCp/Al composites were carried out. And a comprehensive analysis characterise machined topography with 3D roughness such as amplitude parameters spatial was presented. The experimental results indicate that assisted end is filled peaks dales texture almost isotropic. Ultrasonic can tremendously improve performance, comparing conditional grinding. low value be...
For studying the influence of a bilateral slid rolling process (BSRP) on surface integrity thin-walled aluminum alloy structure, and revealing generation mechanism residual stresses, self-designed BSRP appliance was used to conduct experiments. With aid optical profiler, an X-ray stress analyzer, scanning electron microscope (SEM), differences in before after were explored. The internal changing physical as well mechanical properties probed. results show that roughness (Ra) is reduced by...
With the wide use of CNC machine tools, data resources are gradually enriched. How to collected for quality control becomes a hot topic researchers. This paper introduces grey correlation analysis theory establish relationship between process parameters tools and data, then provides theoretical basis using tools.
A high efficiency insulation tester pulser power supply is presented for evaluating systems subject to pulse-width modulation stresses generated by modern converters. resonant circuit used with a series inductor inserted at the output go along capacitance of sample. This approach accompanying converter topology reduces losses and allows testing larger capacitive loads switching frequencies. The modular scalable from low voltage medium applications. Analytical estimates relevant currents are...