A5067022834- Additive Manufacturing and 3D Printing Technologies
- Fluid Dynamics and Heat Transfer
- Nanomaterials and Printing Technologies
- Surface Modification and Superhydrophobicity
- Electrohydrodynamics and Fluid Dynamics
- Particle Dynamics in Fluid Flows
- Spacecraft and Cryogenic Technologies
- Urban Stormwater Management Solutions
- Planetary Science and Exploration
- Additive Manufacturing Materials and Processes
- Injection Molding Process and Properties
- High-Temperature Coating Behaviors
- High Entropy Alloys Studies
- Smart Materials for Construction
- Air Quality and Health Impacts
- Heavy metals in environment
- Microplastics and Plastic Pollution
- Space Exploration and Technology
- Manufacturing Process and Optimization
- Advanced Sensor and Energy Harvesting Materials
Northwestern Polytechnical University
2019-2024
Xi’an University of Posts and Telecommunications
2022-2024
China Three Gorges University
2015
In uniform molten metal micro droplet deposition manufacturing (UDDM), the control of solidification shape is essential to meet forming requirements in different application scenarios achieve a high quality. However, although prediction has been clearly mastered Weber number scenario such as thermal spray, droplets generally impact on substrate at low level 2–10 UDDM, where will solidify into various shapes under processing parameter combinations. Here, uncover differentiation mechanism and...
Rapid in situ manufacturing is significant space exploration. Droplet-based printing technology with micrometer accuracy has great potential due to the advantages of convenient transportation, customized metal material, and good environmental adaptability. It could achieve ground microgravity simulation by a small Bond number (Bo < 1). The present work proposes new method evaluate reliability lateral metallic droplet-based ejection. three-dimensional model developed numerically...
Droplet impact onto solid surfaces is a widespread phenomenon in various engineering applications, including metal droplet ejection three-dimensional (3D) printing, an innovative additive manufacturing technique. Despite extensive research on behavior upon impact, the physics of molten droplets impacting vertical or inclined substrates, particularly scenarios omnidirectional deposition and conformal fabrication, remains understudied. This paper introduces novel termed “migration,” distinct...
Piezoelectric uniform DOD (drop-on-demand) ejection technology is promising in space printing for using the liquid material and good metallurgical combination. This paper mainly aims at researching effect of gravity during process extruded breaks into droplet microgravity environment through numerical simulation model. And quantitative comparison between transverse was achieved via mass flow rate nozzle. The research results show that can ignore influence as long nozzle diameter small...
Droplet jetting technology is widely used in 3D printing.In which process, the flow rate of material extrusion from nozzle one keys that affect printing performance, such as droplet size and its uniformity.In this paper, a model was developed to predict rate.First, by analyzing dynamics power law fluid flowing circular tube, tube obtained.Second, through cone obtained.Finally, set combining results delivered previous two steps.The model's validity verified some numerical simulations, showed...
Persistent and frequent space explorations are limited by real-time parts supply it is significant to achieve manufacture, such as the droplet-based printing. In order study microgravity environment effect on printing, this paper proposed an effective method research of station environmental g-jitter (according NASA experimental signal) droplet ejection flight process. The heat transfer, transient gravity acceleration thermal capillary studied based improved model. results show that in 10-3...