A5019688217- Advanced machining processes and optimization
- Advanced Surface Polishing Techniques
- Advanced Machining and Optimization Techniques
- Metal Alloys Wear and Properties
- Metallurgy and Material Forming
- Nanomaterials and Printing Technologies
- Additive Manufacturing and 3D Printing Technologies
- Microstructure and Mechanical Properties of Steels
- Metal Forming Simulation Techniques
- Railway Engineering and Dynamics
- Advanced materials and composites
- Topology Optimization in Engineering
- Liquid Crystal Research Advancements
- Numerical methods in engineering
- Advanced Sensor and Energy Harvesting Materials
- Surface Roughness and Optical Measurements
- Composite Structure Analysis and Optimization
- Engineering Technology and Methodologies
- High-Velocity Impact and Material Behavior
- 3D Printing in Biomedical Research
- Geotechnical Engineering and Underground Structures
- Advanced Multi-Objective Optimization Algorithms
- Tunneling and Rock Mechanics
- Photorefractive and Nonlinear Optics
- Bone Tissue Engineering Materials
Guizhou Institute of Technology
2020-2025
Guizhou University
2016-2023
Changchun Institute of Optics, Fine Mechanics and Physics
2009
Chinese Academy of Sciences
2009
Abstract The development of flexible electronics (FEs) has rapidly accelerated in numerous fields due to their exceptional deformability, bending, and stretchability. Room‐temperature gallium‐based liquid metals (LMs) are considered as efficient conductive materials for FEs outstanding electrical conductivity intrinsic flexibility. Recently, 3D printing become a promising technique fabricating FEs. However, the poor printability high surface tension fluidity offers huge challenges LMs. This...
Establishing and controlling the prediction model of a machined surface quality is known as basis for sustainable manufacturing. An ensemble learning algorithm—the gradient boosting regression tree—is incorporated into roughness modeling. In order to address problem high time cost tendency fall local optimum solution when grid search conjugate method adopted obtain super-parameters algorithm, genetic algorithm employed optimal in training process, genetic-gradient tree (GA-GBRT) developed. A...
Abstract The development of biomimetic cartilage constructs (BCCs) with natural extracellular matrix (ECM) microenvironments and topological cues to accelerate the reconstruction articular (NAC) after injury is challenging due its complex structure, low cellular content, less vascularity. Inspired by concrete rebar a named “biological reinforced concrete” fabricated, collagen fiber orientation transitioning from parallel perpendicular, replicating ECM construct NAC. 3D‐printed ultrafine...
This study designed a new microgroove cutting tool to machine Inconel 718 and focused on the effect of structure performance chip morphology during turning. A comparative analysis force, temperature, life, wear, original was conducted. The main force temperature were reduced by 12% 12.17%, respectively, compared with tool. exhibited significant improvement tool, which extended life up 23.08%. Further, distorted curl radius chips extensively. experimental results showed that can not only...
Brittle damage is a key factor restricting tool life extension. The peridynamic (PD) theory was applied to explain and predict the brittle of near-field cutting edge cemented carbide microgroove turning (CCMTT) for first time in this study, PD modeling complex surface realized. results showed that accuracy CCMTT can reach ±3.4%. displacement material points caused by combined effect external load internal interaction force, former dominant. There no linear relationship between calculation...
AISI 304 has good physical and chemical properties thus is widely used. However, due to the low thermal diffusivity, cutting temperature of high accelerating wear tool. Therefore, tool a major problem in machining hard materials. In this study, we developed new type micro-groove whose rake surface was distributed with by powder metallurgy based on finite element field morphology. We compared proposed an untreated one using scanning electron microscope (SEM) X-ray energy spectrum. The...
Tool-chip friction increases cutting temperature, aggravates tool wear, and shortens the service life of tools. A micro-groove design rake face can improve wear performance tool. In this study, we used finite element simulation “Deform” to obtain temperature field distribution face. The size was determined by selecting a suitable combined with characteristics tool–chip flow in process, prepared using powder metallurgy. three-direction forces tip were obtained test. Compared original turning...
The thermo-stability of acrylate based holographic polymer dispersed liquid crystal gratings has been evaluated with regard to their morphology, diffraction efficiency, Bragg angle and electro-optical tunable performance. Our studies indicate that the is closely related chemical structure monomers in grating. Usually, a more rigid molecular forms stable morphology. Another important aspect, reaction efficiency system, shows highly efficient photoreaction leads dense network high...
Chip morphology is one of the evaluation indexes cutting performance tools, and chip forming process has a direct important influence on morphology. High-strength steel 40CrMnMo typical oil country tubular goods (OCTG) difficult-to-cut materials, its represents machining quality OCTG. The new independent-developed microgroove turning tool for researched, combining experiments with theoretical analysis. Research results show that increase speed, initial radius curvature fluctuates slightly,...
Shear angle is an important parameter to study cutting deformation.This paper uses orthogonal force test obtain the tangential and normal in order investigate average friction coefficient on rake face machining super alloy GH4169.With high temperature Split-Hopkinson pressure bar (SHPB) compression test, constitutive equation for GH4169 was established provided material model Third Wave Advant Edge software improve simulation precision.Comparing simulated calculated results, it shown that...
Abstract：Considering the size effect, temperature effect and hardening of material in shear zone, strain rate zone are studied by theoretical calculation experimental study.Hydrostatic stress shearing flow with cutting amount change.The results show that difference between hydrostatic is largest when = 60m / min, f 0.15mm r, a 1mm, even plasticity Deformation best, workpiece has good service performance, course work to withstand impact load capacity relatively strong.
The cemented carbide coating micro groove turning tool and original are arranged to cut the same oil country tubular goods (OCTG) 40CrMnMo.By combination of cutting experiment theoretical analysis, this paper focuses on radial distribution residual stress machined surfaces new through a comparative analysis from two above.Research results show that can increase thickness maximum value compressive stress, reduce tensile surface material workpiece.