Jiwang Yan
YOU?
Author Swipe
View article: Feedforward Compensation of Dynamics-Induced Form Errors in High-Speed Diamond Turning of Freeform Surfaces Using a Long-Stroke Fast Tool Servo
Feedforward Compensation of Dynamics-Induced Form Errors in High-Speed Diamond Turning of Freeform Surfaces Using a Long-Stroke Fast Tool Servo Open
The fabrication of freeform optical components is increasingly demanded in emerging technologies such as augmented reality, imaging systems, and compact spectrometers. Fast-tool-servo (FTS) diamond turning has become a promising solution f…
View article: Enhancing tool life and surface quality in high-speed milling of Ti6Al4V: a comparative study of flood and minimum quantity lubrication cooling strategies
Enhancing tool life and surface quality in high-speed milling of Ti6Al4V: a comparative study of flood and minimum quantity lubrication cooling strategies Open
View article: Generation of high-aspect-ratio 3C-SiC nanowires and evaluation of their potential as battery materials
Generation of high-aspect-ratio 3C-SiC nanowires and evaluation of their potential as battery materials Open
Waste Silicon (Si) powder generated during semiconductor manufacturing has attracted attention as a potential anode material for lithium-ion batteries. This study proposes a novel method to fabricate high-aspect-ratio cubic silicon carbide…
View article: Simultaneous laser nitriding and biomimetic texturing: A synergistic strategy for enhancing mechanical properties and corrosion resistance of Ti6Al4V alloy
Simultaneous laser nitriding and biomimetic texturing: A synergistic strategy for enhancing mechanical properties and corrosion resistance of Ti6Al4V alloy Open
View article: Towards understanding the ultrasonic vibration-assisted diamond cutting of ZnO crystals: Surface integrity and tool wear mechanism
Towards understanding the ultrasonic vibration-assisted diamond cutting of ZnO crystals: Surface integrity and tool wear mechanism Open
View article: Revealing the mechanism of crystal orientation-dependent surface morphology and topography evolution in single-crystal ZnO using nanoindentation
Revealing the mechanism of crystal orientation-dependent surface morphology and topography evolution in single-crystal ZnO using nanoindentation Open
Single-crystal zinc oxide (ZnO) is an important optoelectronic material, but its micro/nanoscale mechanical behavior is poorly understood. In this study, nanoindentation tests were performed on various crystalline planes of ZnO crystals us…
View article: Using fast Fourier transform analysis for the rapid evaluation of the diffraction fringes of optical components produced through ultraprecision single-point diamond turning
Using fast Fourier transform analysis for the rapid evaluation of the diffraction fringes of optical components produced through ultraprecision single-point diamond turning Open
View article: Fabrication of Groove-with-Protrusion Surface Structures on Oxygen-Free Copper Using a Laser-Engineered Burnishing Tool
Fabrication of Groove-with-Protrusion Surface Structures on Oxygen-Free Copper Using a Laser-Engineered Burnishing Tool Open
Microtextured surfaces, such as those with groove, hole, or protrusion structures, are widely used in various industries for bonding dissimilar materials because of their anchor effect, which enhances adhesion and penetration with other ma…
View article: On-machine measurement and Zernike-based compensation cutting for large-aperture additive metal mirrors with ultra-high lightweight ratio
On-machine measurement and Zernike-based compensation cutting for large-aperture additive metal mirrors with ultra-high lightweight ratio Open
In recent years, large-aperture additively-manufactured metal mirrors have been widely used in optics, astronomy, and aerospace. However, achieving precision diamond cutting of these mirrors remains challenging due to their intrinsic non-u…
View article: Enhancing Tool Life and Surface Quality in High-Speed Milling of Ti6Al4V: A Comparative Study of Flood and Minimum Quantity Lubrication Cooling Strategies
Enhancing Tool Life and Surface Quality in High-Speed Milling of Ti6Al4V: A Comparative Study of Flood and Minimum Quantity Lubrication Cooling Strategies Open
Ti6Al4V has excellent strength and corrosion resistance for use in the automotive, aerospace, and biomedical industries, but its poor thermal conductivity and built-up edges forming lead to significant tool wear and machining challenges. T…
View article: Experimental research on stimulated Raman scattering under a hybrid-drive ignition path
Experimental research on stimulated Raman scattering under a hybrid-drive ignition path Open
Stimulated Raman scattering (SRS) under a new ignition path that combines the advantages of direct-drive (DD) and indirect-drive (ID) schemes is investigated experimentally at the Shenguang-100 kJ facility. The results show that collective…
View article: Investigation of the Effect of Tool Rotation Rate in EDM Drilling of Ultrafine Grain Tungsten Carbide Using Predictive Machine Learning
Investigation of the Effect of Tool Rotation Rate in EDM Drilling of Ultrafine Grain Tungsten Carbide Using Predictive Machine Learning Open
Electric discharge machining (EDM) is widely employed for machining hard, conductive materials. Tool rotation has emerged as an effective strategy to enhance debris flushing and improve stability during deep-hole EDM drilling. This study p…
View article: Effect of System Dynamics on Surface Topography in Fast Tool Servo-Based Diamond Turning of Microlens Arrays
Effect of System Dynamics on Surface Topography in Fast Tool Servo-Based Diamond Turning of Microlens Arrays Open
A lens array is often used for optical components of sensing devices, requiring high surface quality and form accuracy. Fast tool servo (FTS)-based diamond turning is one of the technologies for manufacturing complicated shapes, such as fr…
View article: Numerical simulation of defect detection in curved pipes using L (0,2) mode ultrasonic guided waves
Numerical simulation of defect detection in curved pipes using L (0,2) mode ultrasonic guided waves Open
This research explores the potential of ultrasonic-guided waves for defect detection in bent pipes by utilizing COMSOL to create a numerical model of a defective bent pipe. Comparative analysis of different excitation frequencies identifie…
View article: Investigation of laser absorption efficiency in planar plasma produced by laser irradiation at various incidence angles
Investigation of laser absorption efficiency in planar plasma produced by laser irradiation at various incidence angles Open
Laser absorption in plasma plays a critical role in energy coupling and symmetry driving in laser direct-drive implosions, particularly in polar direct drive. The incidence angle of the laser significantly influences absorption efficiency.…
View article: Micromachining of Carbon Fiber Reinforced Plastics Using Femtosecond Pulsed Laser
Micromachining of Carbon Fiber Reinforced Plastics Using Femtosecond Pulsed Laser Open
Microscale grooves and holes were fabricated in carbon fiber reinforced plastics (CFRPs) using femtosecond pulsed laser irradiation, and the characteristics and mechanisms of laser processing were investigated. The relationship between las…
View article: Coupled SPH-FEM Simulation Model to Analyze the Mechanism of Single Particle Impact in Abrasive Waterjet Machining
Coupled SPH-FEM Simulation Model to Analyze the Mechanism of Single Particle Impact in Abrasive Waterjet Machining Open
Studying single particle impact is crucial to understanding the erosion mechanism in abrasive waterjet machining (AWJM). In this paper, the finite element method (FEM) and smoothed particle hydrodynamics (SPH) were combined to investigate …
View article: Nanosecond Laser Nanopatterning of Highly Ordered Nanodot Arrays on Silicon Surface: Breaking the Monopoly of Femtosecond Lasers
Nanosecond Laser Nanopatterning of Highly Ordered Nanodot Arrays on Silicon Surface: Breaking the Monopoly of Femtosecond Lasers Open
Laser nanopatterning is an effective strategy to manipulate the surface properties of materials. One of the glaring restrictions is that the fabrication of long‐range ordered nanostructures typically relies on ultrafast lasers, especially …
View article: Time delay compensation in high-speed diamond turning of freeform surface using independent fast tool servo with a long stroke
Time delay compensation in high-speed diamond turning of freeform surface using independent fast tool servo with a long stroke Open
View article: Micro-amplitude vibration-assisted scratching: a new method for one step and controllable fabrication of the microscale V-groove and nanoscale ripples
Micro-amplitude vibration-assisted scratching: a new method for one step and controllable fabrication of the microscale V-groove and nanoscale ripples Open
Micro/nano hierarchical structures could endow materials with various surface functions. However, the multilayer and multiscale characteristics of micro/nano hierarchical structures bring difficulties for their one step and controllable fa…
View article: Intercepted Air Corrosion, Tolerated Temperature Fluctuation and Enhanced High-Rate Properties of P2-Type Na2/3fe1/4mn3/4o2: Amorphous Al2o3 Coating Derived Interfacial Al Doping Mechanism
Intercepted Air Corrosion, Tolerated Temperature Fluctuation and Enhanced High-Rate Properties of P2-Type Na2/3fe1/4mn3/4o2: Amorphous Al2o3 Coating Derived Interfacial Al Doping Mechanism Open
View article: Surface finishing by shape-adaptive processes
Surface finishing by shape-adaptive processes Open
View article: Subsurface amorphization-induced ultrasmooth and ultrahard surface during the diamond turning of polycrystalline pure copper
Subsurface amorphization-induced ultrasmooth and ultrahard surface during the diamond turning of polycrystalline pure copper Open
Previous simulations indicated that pure metals can be amorphized during diamond turning. However, no pure metal has been successfully amorphized during this procedure to date. Herein, a comprehensive study on the surface formation mechani…
View article: In vivo three-photon fluorescence imaging of mouse brain vasculature labeled by Evans blue excited at the NIR-III window
In vivo three-photon fluorescence imaging of mouse brain vasculature labeled by Evans blue excited at the NIR-III window Open
Multiphoton fluorescence microscopy (MFM), renowned for its noninvasiveness and high spatiotemporal resolution, is extensively applied in brain structure imaging in vivo. Three-photon fluorescence (3PF) imaging, excited at the NIR-III wind…
View article: Surface morphology formation and subsurface microstructure evolution of zirconia in ultrasonic vibration-assisted burnishing
Surface morphology formation and subsurface microstructure evolution of zirconia in ultrasonic vibration-assisted burnishing Open
View article: Achieving ultra-low wear of Ti6Al4V alloy by introducing a sinusoidal nitriding layer via nanosecond pulsed laser irradiation
Achieving ultra-low wear of Ti6Al4V alloy by introducing a sinusoidal nitriding layer via nanosecond pulsed laser irradiation Open
View article: Bending Forming Characteristics of CoCrFeMnNi High-Entropy Alloy Sheets Induced by Nanosecond Pulse Laser Irradiation
Bending Forming Characteristics of CoCrFeMnNi High-Entropy Alloy Sheets Induced by Nanosecond Pulse Laser Irradiation Open
Laser bending forming, as a flexible and die-less forming approach, facilitates the three-dimensional shaping of sheets through the generation of thermal stress via laser-material interaction. In this study, the bending forming characteris…
View article: Improving and Predicting the Surface Roughness and the Machining Accuracy in Ultrasonic Vibration-Assisted Milling
Improving and Predicting the Surface Roughness and the Machining Accuracy in Ultrasonic Vibration-Assisted Milling Open
The present research work amis to develop a controlled vibratory system for improving the performance of slotting process based on the vibration-assisted milling technique. In addition, the establishment of a statistical model for predicti…
View article: High aspect ratio microgrooving of PZT by Femtosecond Pulsed Laser Irradiation
High aspect ratio microgrooving of PZT by Femtosecond Pulsed Laser Irradiation Open
View article: Influences of tool tip geometry on surface/subsurface damage formation in nanoscratching of single-crystal 4H-SiC
Influences of tool tip geometry on surface/subsurface damage formation in nanoscratching of single-crystal 4H-SiC Open