Chonghai Xu
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View article: Enhancement of Cutting Performance of Ceramic Tools by Addition of Exogenous Precursor Restorers
Enhancement of Cutting Performance of Ceramic Tools by Addition of Exogenous Precursor Restorers Open
To address brittle cracks in ceramic tools, an exogenous precursor ceramic repair agent was developed and applied to Al2O3/TiC/NiMo composite ceramic tools, which were treated by a two-step heat treatment process (heating at 3 °C/min to 30…
View article: Mechanical Properties and Cutting Performance of Si3N4/Sc2W3O12 Composite Ceramic Tools Materials
Mechanical Properties and Cutting Performance of Si3N4/Sc2W3O12 Composite Ceramic Tools Materials Open
To address the poor thermal shock resistance and high brittleness of traditional ceramic tools, a novel Si3N4/Sc2W3O12 (SNS) composite ceramic material was developed via in situ synthesis using WO3 and Sc2O3 as precursors and consolidated …
View article: Fiber Orientation Effects in CFRP Milling: Multiscale Characterization of Cutting Dynamics, Surface Integrity, and Damage Mechanisms
Fiber Orientation Effects in CFRP Milling: Multiscale Characterization of Cutting Dynamics, Surface Integrity, and Damage Mechanisms Open
During the machining of unidirectional carbon fiber-reinforced polymers (UD-CFRPs), their anisotropic characteristics and the complex cutting conditions often lead to defects such as delamination, burrs, and surface/subsurface damage. This…
View article: Research on the online monitoring method of cutting tool wear based on the mechanism-data fusion concept of digital twin
Research on the online monitoring method of cutting tool wear based on the mechanism-data fusion concept of digital twin Open
View article: Influence of Embedding Microcapsules on Tribological Properties of Alumina Ceramics Prepared by Gel Casting
Influence of Embedding Microcapsules on Tribological Properties of Alumina Ceramics Prepared by Gel Casting Open
The continuous advancement of technology has led to escalating demands for superior tribological performance in industrial applications, necessitating the enhancement of ceramic materials’ frictional properties through innovative approache…
View article: Multi-scale characterization of the effect of point angle on material damage during drilling of UD-CFRP
Multi-scale characterization of the effect of point angle on material damage during drilling of UD-CFRP Open
This study investigates the effect of tool point angle on cutting efficiency during the drilling of carbon fiber-reinforced plastic (CFRP). A fully three-dimensional finite element model of CFRP drilling (including both macro and micro mod…
View article: Preparation of zirconia ceramic microtool for cell tissue separation by combining corrosion thinning and focused ion beam (FIB) technology
Preparation of zirconia ceramic microtool for cell tissue separation by combining corrosion thinning and focused ion beam (FIB) technology Open
The material removal of micro-nano-machining to prepare microtool is too large, and the material needs to be pre-treated. In this paper, the micro removal processing of zirconia material was carried out by corrosion method, and the effects…
View article: Microfluidic platforms for monitoring cardiomyocyte electromechanical activity
Microfluidic platforms for monitoring cardiomyocyte electromechanical activity Open
Cardiovascular diseases account for ~40% of global deaths annually. This situation has revealed the urgent need for the investigation and development of corresponding drugs for pathogenesis due to the complexity of research methods and det…
View article: Effect of VC Content on the Performance of Ultrafine-Grained Wc-6co Cemented Carbides
Effect of VC Content on the Performance of Ultrafine-Grained Wc-6co Cemented Carbides Open
View article: Study on the Low-Dry Friction Mechanism and Carbon-Rich Lubricating Interface of Sc₂O₃/WO₃ Doped ZTA Ceramics
Study on the Low-Dry Friction Mechanism and Carbon-Rich Lubricating Interface of Sc₂O₃/WO₃ Doped ZTA Ceramics Open
View article: Surface Modification of Graphene Oxide and Its Strengthening and Toughening Mechanism for Alumina-Based Ceramic Materials
Surface Modification of Graphene Oxide and Its Strengthening and Toughening Mechanism for Alumina-Based Ceramic Materials Open
This study investigated the effects of incorporating reduced-graphene-oxide-coated alumina (Al2O3–RGO) nanoparticles and unmodified graphene oxide (GO) onto the microstructure as well as the mechanical properties of Al2O3/TiB2 matrix ceram…
View article: Structural Design and Mechanical Properties Analysis of Laminated SiAlON Ceramic Tool Materials
Structural Design and Mechanical Properties Analysis of Laminated SiAlON Ceramic Tool Materials Open
Based on finite element simulation analysis, laminated ceramic tool materials with different structures were designed and the effect of laminated structure on tool state was investigated. Residual stresses in ceramic tool materials increas…
View article: Investigation of Surface Integrity of 304 Stainless Steel in Turning Process with Nanofluid Minimum-Quantity Lubrication Using h-BN Nanoparticles
Investigation of Surface Integrity of 304 Stainless Steel in Turning Process with Nanofluid Minimum-Quantity Lubrication Using h-BN Nanoparticles Open
This paper investigates the influence of the concentration and particle size of h-BN nanoparticles in a nanofluid on the surface integrity of 304 austenitic stainless steel during turning, focusing on the cutting force, friction coefficien…
View article: Study on the grain refinement mechanism of the machined surface of Inconel 718
Study on the grain refinement mechanism of the machined surface of Inconel 718 Open
In machining processes, the high temperature and stress can lead to plastic deformations of the workpiece material. Thermomechanical loading has a significant impact on the microstructure of the machined surface, including grain deformatio…
View article: Preparation and Cutting Performance of (W,Ti,Ta)C/Caf2 Nano-Self-Lubricating Cermet Tool Material Via Spark Plasma Sintering
Preparation and Cutting Performance of (W,Ti,Ta)C/Caf2 Nano-Self-Lubricating Cermet Tool Material Via Spark Plasma Sintering Open
View article: Effects of Al2o3@Rgo Nanopowders with Core-Shell Structure on Microstructure and Mechanical Properties of Al2o3/Tib2 Based Ceramic Composites
Effects of Al2o3@Rgo Nanopowders with Core-Shell Structure on Microstructure and Mechanical Properties of Al2o3/Tib2 Based Ceramic Composites Open
View article: Simulation of Microscopic Fracture Behavior in Nanocomposite Ceramic Tool Materials
Simulation of Microscopic Fracture Behavior in Nanocomposite Ceramic Tool Materials Open
In this paper, the microstructures of nanocomposite ceramic tool materials are represented through Voronoi tessellation. A cohesive element model is established to perform the crack propagation simulation by introducing cohesive elements w…
View article: Effect of CaF2@SiO2 on Si3N4/TiC Composite Ceramic Materials: Molecular Dynamics Analysis and Material Preparation
Effect of CaF2@SiO2 on Si3N4/TiC Composite Ceramic Materials: Molecular Dynamics Analysis and Material Preparation Open
Molecular dynamics simulations allow to investigate the microscopic evolution of a structure, and can also point the way to tool material design. In this paper, the effect of adding CaF2 and CaF2@SiO2 on the Si3N4/TiC system is studied usi…
View article: Effect of Al Content on the Wear Evolution of Ti1-xAlxN-Coated Tools Milling Ti-6Al-4V Alloy
Effect of Al Content on the Wear Evolution of Ti1-xAlxN-Coated Tools Milling Ti-6Al-4V Alloy Open
Ti1-xAlxN coating is formed by replacing some Ti atoms in TiN with Al atoms, and their properties are closely related to Al content (0 < x < 1). Recently, Ti1-xAlxN-coated tools have been widely used in the machining of Ti-6Al-4V alloy. In…
View article: Finite element asnalysis of Ti1-xAlxN coated tools cutting performance and tool wear during Ti–6Al–4V milling
Finite element asnalysis of Ti1-xAlxN coated tools cutting performance and tool wear during Ti–6Al–4V milling Open
Ti–6Al–4V alloy, as a typical difficult-to-machine material, is prone to problems such as large cutting forces, high cutting temperatures, and serious tool wear during the cutting process. Ti1-xAlxN coated tools are widely used in machinin…
View article: Accurate Cutting-Force Measurement with Smart Tool Holder in Lathe
Accurate Cutting-Force Measurement with Smart Tool Holder in Lathe Open
Cutting force in lathe work is closely related to tool wear and affects the turning quality. Direct measurement of the cutting force by measuring the strain of the tool holder is challenging because the tool holder design aims to be highly…
View article: Trajectory Optimization of High-Speed Robotic Positioning with Suppressed Motion Jerk via Improved Chicken Swarm Algorithm
Trajectory Optimization of High-Speed Robotic Positioning with Suppressed Motion Jerk via Improved Chicken Swarm Algorithm Open
For the trajectory optimization of the time–jerk of robotic arms with a chicken swarm optimization algorithm, using five-order B-spline interpolation can ensure smooth and continuous acceleration, but, due to the performance problems of th…
View article: Experimental Research and Numerical Simulation of Laser Welding of 303Cu/440C-Nb Stainless-Steel Thin-Walled Natural-Gas Injector for Vehicles
Experimental Research and Numerical Simulation of Laser Welding of 303Cu/440C-Nb Stainless-Steel Thin-Walled Natural-Gas Injector for Vehicles Open
This paper presents the results of research on laser lap welding technology of heterogeneous materials and a laser post-heat treatment method to enhance welding performance. The purpose of this study is to reveal the welding principle of a…
View article: Trajectory optimization of high-speed robotic positioning with suppressed motion jerk via improved chicken swarm algorithm
Trajectory optimization of high-speed robotic positioning with suppressed motion jerk via improved chicken swarm algorithm Open
To address the problems of premature convergence and low solution accuracy of the basic swarm optimization algorithm an improved chicken swarm algorithm based on parallel strategy and dynamic constraints (PDCSO) is proposed for the rooster…
View article: The effect of chip formation on the cutting force and tool wear in high-speed milling Inconel 718
The effect of chip formation on the cutting force and tool wear in high-speed milling Inconel 718 Open
Coated carbide tools are widely used in the processing of nickel-based superalloys due to their excellent wear resistance, high strength and good hardness at high temperatures. In this paper, the high-speed milling experiments and Finite E…
View article: Synergetic Lubrication between Self-Lubricating Ceramic Tools and Nanofluids: Advancing the Application of Self-Lubricating Ceramic Cutting Tools
Synergetic Lubrication between Self-Lubricating Ceramic Tools and Nanofluids: Advancing the Application of Self-Lubricating Ceramic Cutting Tools Open
View article: Gut-on-a-chip for exploring the transport mechanism of Hg(II)
Gut-on-a-chip for exploring the transport mechanism of Hg(II) Open
View article: Finite Element Analysis of Ti1-Xalxn Coated Tools Cutting Performance and Tool Wear During Ti-6al-4v Milling
Finite Element Analysis of Ti1-Xalxn Coated Tools Cutting Performance and Tool Wear During Ti-6al-4v Milling Open
View article: Toughening Mechanism of B4c/Tib2 Ceramic Materials by in Situ Reaction Via Sps
Toughening Mechanism of B4c/Tib2 Ceramic Materials by in Situ Reaction Via Sps Open
View article: Strengthening and Toughening of Cnts-Reinforced B4c-Sic Ceramic Composite Material Via Spark Plasma Sintering
Strengthening and Toughening of Cnts-Reinforced B4c-Sic Ceramic Composite Material Via Spark Plasma Sintering Open