A5101986266- Laser Material Processing Techniques
- Advanced machining processes and optimization
- Laser-induced spectroscopy and plasma
- Advanced Surface Polishing Techniques
- Ocular and Laser Science Research
- Advanced Measurement and Metrology Techniques
- Machine Fault Diagnosis Techniques
- Gear and Bearing Dynamics Analysis
- Industrial Vision Systems and Defect Detection
- Robot Manipulation and Learning
- Robotic Path Planning Algorithms
- Advanced Machining and Optimization Techniques
- Optical measurement and interference techniques
- Reliability and Maintenance Optimization
- Advanced Numerical Analysis Techniques
- Digital Transformation in Industry
- Robotic Mechanisms and Dynamics
- Fault Detection and Control Systems
- Diamond and Carbon-based Materials Research
- Magnetic Bearings and Levitation Dynamics
- Surface Modification and Superhydrophobicity
- Tribology and Lubrication Engineering
- Autonomous Vehicle Technology and Safety
- Laser-Ablation Synthesis of Nanoparticles
- Hand Gesture Recognition Systems
Xi'an Jiaotong University
2015-2024
Ningbo University
2012
Nuclear and Radiation Safety Center
1995
Silicon carbide (SiC) ceramics have been widely used for microelectronics, aerospace, and other industrial fields due to their excellent chemical stability thermal tolerance. However, hard machinability low machining precision of SiC are the key limitations further applications. To address this issue, a novel method underwater femtosecond laser was introduced in study obtain high smooth surface microgrooves ceramics. The removal profiles were characterized terms width, depth, morphology,...
The interaction between an ultra-fast pulse laser and a material's surface has become research hotspot in recent years. Micromachining of titanium alloy with is very important direction, it theoretical significance application value investigating the ablation threshold irradiated by lasers. Irradiated picosecond wavelengths 1064 nm 532 nm, morphology feature sizes, including crater width (i.e. diameter), depth, area, volume, single rate, so forth, were studied, their distributions obtained....
Bioinspired superhydrophilic/phobic self-cleaning surfaces have recently drawn a lot of interest in both fundamental and applied research. A hybrid method to produce the property micro/nanostructured surface using ultra-fast laser pulses followed by chemical fluorination is proposed. The typical micro/nanocomposite structures that form from microporous arrays microgroove groups been processed picosecond on titanium alloy surface. hydrophilic/phobic properties micro/nanostructures before...
Condition monitoring (CM) is the escort of smart manufacturing, which guarantees safety, precision, and efficiency production process. However, traditional CM capacities with limited storage computing resources cannot follow explosive growth manufacturing data. Empowered by emerging Internet Things, cyber-physical system, cloud computing, (CMfg) characterizes a new service-oriented technology, reshaping paradigm into an agile, scalable, interoperable mode. In this article, CMfg-based...
Milling tool wear state recognition plays an important role in controlling the quality of milled parts and reducing machine downtime. However, characteristics milling process limit accuracy stability condition monitoring (TCM) employing vibration signals. To improve this problem, paper explores use signals as sensing approach for recognizing states during operation by using stacked generalization (SG) ensemble model. In study, collected are analyzed through time domain, frequency...
In the context of Industrial Internet things (IIoT), large-scale IIoT data is generated, which can be effectively mined to provide valuable information for condition monitoring (CM). However, traditional CM methods cannot meet unprecedented challenges concerning transmission, storage and analysis. Therefore, manufacturers have begun shift from manufacturing paradigm smart manufacturing, integrates encapsulated services enabling cloud-edge computing technology handle data. To enhance agility,...
A study was presented in this paper on porous structure with microsize holes significantly smaller than laser spot the stainless steel 304 target surface induced by a picosecond Nd:van regenerative amplified laser, operating at 1064 nm. The variations were studied air ambience. estimated damage threshold 0.15 J/cm 2 . specific changes and phenomena observed supported complementary formation growth of subspot size pit metal dependence pulse number 50–1000 fluences 0.8 1.6 Two kinds structures...
<ns3:p>Background The quality of machined parts is considered as a relevant factor to evaluate the production performance machine tools. For mapping into digital twin tool, virtual metrology model for surface roughness prediction, which affects products' mechanical capacity and aesthetic performance, proposed in this paper. Methods applies three-layer backpropagation neural network by using real-time vibration, force, current sensor data collected during end milling machining process. A grid...
Based on the near-field optical theory, characteristics of Ag nanoparticle within scope a metallic AFM tip irradiated by fiber probe laser are carried out with finite element method. As transmits in probe, light various modes is gradually turned off, remaining HE11 mode laser. Meanwhile, evanescent field can be produced at confined aperture, which will also stimulate enhancement phenomenon and those extrema appearing apex tip, upper lower parts nanoparticle, sharp boundary positions end...