Article
Acoustics
Yunze Li, Dongzhe Zhang, Hui Wang, Gaihua Ye, Rui He, Weilong Cong
Summary: Brittle materials are widely used in various industries, and there is a growing demand for high-precision micro-machining of these materials. Traditional ultra-precision micro-machining can lead to issues such as workpiece cracking and low surface quality. Rotary ultrasonic machining is a nontraditional process that can effectively address these problems. This study investigates the effects of ultrasonic vibration and input parameters on cutting force and surface quality in micro-machining of brittle materials.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Automation & Control Systems
Yi-Jia Sun, Zhen Chen, Sheng-Jun Ao, Hu Gong, Shu-Yu Gui
Summary: This study investigates the electrical characteristics of the ultrasonic vibration unit in a rotary ultrasonic machining (RUM) system. The relationship between electrical parameters and the resonant frequency of the ultrasonic vibration unit is studied when different tools are clamped. Rotary ultrasonic drilling experiments are conducted to study the effect of processing parameters on the electrical characteristics of the ultrasonic vibration unit. It is found that the variations of electrical parameters are significant under different ultrasonic voltages but not under different feed rates.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Automation & Control Systems
ZiQiang Zhang, Feng Jiao, YuanXiao Li, Ying Niu, JingLin Tong
Summary: This paper investigates the machining performance of longitudinal-torsional ultrasonic-assisted core drilling in carbon fiber-reinforced plastics. The results show that this method significantly reduces cutting force, suppresses delamination, and improves hole quality.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Tian Lan, Pingfa Feng, Jianfu Zhang, Huilin Zhou, Jianjian Wang
Summary: Rotary ultrasonic machining (RUM) is an effective method for processing difficult-to-cut materials, but the understanding of critical cutting force in RUM system with frequency-tracking module is lacking. This study models the dependency of ultrasonic amplitude on cutting force and develops experimental methods to measure the actual ultrasonic amplitude and critical cutting force. The experimental results validate the models and analyze the influence of electrical and mechanical design on critical cutting force in frequency-tracked RUM system.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Materials Science, Ceramics
Fan Chen, Wenbo Bie, Xiaobo Wang, Bo Zhao
Summary: This study utilized the longitudinal-torsional coupled rotary ultrasonic machining technique to process ZrO2 ceramics and conducted experiments to investigate its effects. The results showed that this machining method significantly reduced cutting force and surface roughness, improved hole surface quality, and reduced abrasive particle wear.
CERAMICS INTERNATIONAL
(2022)
Article
Automation & Control Systems
Jiangwei Jin, Xiaobo Wang, Wenbo Bie, Fan Chen, Bo Zhao
Summary: This study investigates the cutting force and surface topography during the machining of SiCf/SiC ceramic matrix composites using longitudinal-torsional coupled rotary ultrasonic machining (LTC-RUM). Compared with conventional machining methods, LTC-RUM can effectively reduce the cutting force and improve the surface topography. The results provide theoretical and experimental basis for machining SiCf/SiC ceramic matrix composites.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Marcel Kuruc, Jozef Peterka
Summary: This paper investigates the behavior of ceramic materials in the rotary ultrasonic machining process at different cutting speeds. By adjusting the cutting speeds, parameters such as machine load, tool wear, and surface roughness were observed. The results will contribute to optimizing the cutting parameters of the rotary ultrasonic machining process.
Article
Automation & Control Systems
Wenbo Bie, Fan Chen, Xiaobo Wang, Shaopeng Chen, Zongxia Fu, Bo Zhao
Summary: This study proposed a cutting force model for LTC-RUM end surface grinding of SiCf/SiC composites by analyzing the motion path and material removal mechanism of a single abrasive grain. The developed model was verified through experiments and showed non-linear decline of cutting force in LTC-RUM.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Crystallography
Gang Liu, Jie Yang, Liqiang Zhang, Qiuge Gao, Long Qian, Rongyao Zhang
Summary: This study investigates the impact of different cutting parameters of rotary ultrasonic machining on the surface quality of honeycomb composites. By determining reasonable cutting parameters through experimental results, it provides guidance for achieving precise and efficient machining of HCs.
Article
Mechanics
Congle Liu, Junxue Ren, Kaining Shi, Yali Zhang
Summary: Carbon fiber reinforced plastic (CFRP) is widely used in the aerospace field due to its excellent mechanical properties. The use of MD-CFRP in engineering applications creates complexities due to its anisotropy and inhomogeneity, making it prone to defects during machining. By establishing a fracture mechanism evolution model and conducting experiments, the study verifies that the fiber cutting angle is crucial in orthogonal cutting, leading to changes in fracture mechanisms. The research provides a basis for understanding the machining mechanism, damage mechanism, and engineering application of MD-CFRP.
COMPOSITE STRUCTURES
(2023)
Article
Automation & Control Systems
Fan Chen, Wenbo Bie, Yingli Chang, Bo Zhao, Xiaobo Wang, Yuemin Zhang
Summary: This study introduces a LTC-RUM cutting force model for zirconia ceramics based on the brittle material removal mechanism, and experimentally verifies the closely correlated results with the predicted cutting forces. The maximum discrepancies between the predicted and experimental cutting forces vary with different processing parameters. This research is important for predicting and optimizing the effects of processing parameters on the cutting force during LTC-RUM of ceramics.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Review
Mechanics
Yang Song, Huajun Cao, Wei Zheng, Da Qu, Lei Liu, Chunping Yan
Summary: This article provides a detailed review and discussion of various types of cutting force models for carbon fiber reinforced polymer (CFRP) composites, including their development and future trends.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Manufacturing
Nicolas Duboust, Michael Watson, Matt Marshall, Garret E. O'Donnel, Kevin Kerrigan
Summary: This research developed a new ply-by-ply surface roughness measurement method using optical focus variation surface analysis and image segmentation for a machined carbon fiber composite laminate. Results showed that cutting edge degradation, fiber orientation, and feed rate significantly affect the cutting mechanism, machining-induced surface defects, and surface roughness parameters.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
(2021)
Article
Engineering, Manufacturing
S. H. Chen, Q. Ge, J. S. Zhang, W. J. Chang, J. C. Zhang, H. H. Tang, H. D. Yang
Summary: Zr57 BMG showed excellent machinability at low-speed cutting with superior surface roughness and no crystallization. Scale-like patterns were observed on the machined surface due to plastic flow, which could be effectively suppressed by adjusting cutting parameters.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Engineering, Aerospace
Bin Fang, Zhonghang Yuan, Depeng Li, Liying Gao
Summary: In the study of micromilling Inconel718, it was found that ultrasonic vibration assisted micromilling effectively improves surface quality, reduces surface defects and burr size, suppresses built-up edge formation, and decreases cutting forces compared to traditional micromilling.
CHINESE JOURNAL OF AERONAUTICS
(2021)
Article
Materials Science, Multidisciplinary
Ganggang Zhang, Yingbin Hu, Dong Hou, Dongxuan Yang, Qingchuan Zhang, Yapeng Hu, Xinliang Liu
Summary: The porosity defects in the ingot caused by moisture absorption in slag during electroslag remelting process require accurate prediction of slag weight gain rate. The results from machine learning models indicate that the rate of weight gain in slag is influenced by air humidity, experimental time, slag particle size, and CaO content.
Article
Materials Science, Multidisciplinary
Shaoqing Wang, Anfu Guo, Sen Liang, Peng Qu, Yingbin Hu, Changcun Liu
Summary: In this study, a dynamic analytical model was developed to optimize stiffened composite structures with embedded viscoelastic damping membranes. The effects of structural parameters on dynamic performance were investigated through theoretical analysis and finite element simulation.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Engineering, Manufacturing
Chang Liu, Partha Pratim Pandit, Cole Parsons, Fazeel Khan, Yingbin Hu
Summary: PDMS is widely used in biomedicine, electronics, wearable equipment, and other high-tech industries due to its high biocompatibility, good chemical and thermal stability, and outstanding optical properties. However, its poor mechanical properties limit its use in low stress applications. In this study, carbon fiber was added to PDMS using inkjet-based additive manufacturing technology to enhance its mechanical properties. The introduction of an acoustic field improved the distribution of carbon fibers and reduced defects, leading to improved mechanical properties in the fabricated samples.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Materials Science, Multidisciplinary
Anfu Guo, Changcun Liu, Shuo Li, Xiaoyan Zhou, Jin Wang, Shaoqing Wang, Peng Qu, Yingbin Hu
Summary: In this study, carbon fiber-reinforced polymer composites were manufactured using material extrusion technology, and water absorption and tensile tests were conducted. Multi-objective optimization of input variables was performed using orthogonal testing and fuzzy reasoning algorithm, leading to the production of composites with improved comprehensive performance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Optics
Yunze Li, Yingbin Hu, Dongzhe Zhang, Weilong Cong
Summary: Due to their excellent mechanical properties, CoCrFeNiTi high entropy alloys (HEAs) have attracted researchers' attention as coating materials for titanium and its alloys. The combination of directed energy deposition (DED) and laser remelting has the potential to enhance the solid solution strengthening effects and element segregation of CoCrFeNiTi HEA coatings, affecting their phase constitutions, microstructure, and mechanical properties. This study investigates the relationships among remelting laser power, molten pool properties, microstructure, and mechanical properties of CoCrFeNiTi HEA coatings. Results show that a higher remelting laser power leads to a two-phase microstructure, with enhanced solid solution strengthening effects and precipitation of high-hardness phases. The highest microhardness and best wear resistance are achieved with specific remelting laser powers.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Materials Science, Composites
Shaoqing Wang, Changsheng Zheng, Shuo Li, Anfu Guo, Peng Qu, Yingbin Hu
Summary: This study establishes a dynamic analytical model to predict the vibration performance of FG-CNTRCDS and investigates the effects of various structural parameters on its performance.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Physical
Partha Pratim Pandit, Chang Liu, Scott Iacono, Giancarlo Corti, Yingbin Hu
Summary: High-density polyethylene (HDPE) is a promising thermoplastic polymer material with distinct properties. Fused deposition modeling (FDM) is introduced to process HDPE and carbon fiber (CF) is incorporated into HDPE to improve its mechanical and thermal properties. The effects of CF content on various properties have been investigated.
Article
Engineering, Manufacturing
Anfu Guo, Dekun Kong, Xiaoyan Zhou, He Kong, Peng Qu, Shaoqing Wang, Hongbing Wang, Yingbin Hu
Summary: The inherent brittleness of ceramics restricts their ability to resist fracture upon impact. To address this problem, a damage-resistant ceramic process involving both interior and exterior strengthening and toughening was proposed. The experimental results showed significant improvements in compressive stress and energy absorption by adopting the proposed methods.
ADDITIVE MANUFACTURING
(2022)
Article
Materials Science, Ceramics
Anfu Guo, Xiaoyan Zhou, Dekun Kong, He Kong, Hongbing Wang, Yan Zhu, Peng Qu, Shaoqing Wang, Yingbin Hu
Summary: Vat photopolymerization (VPP) is a cost-effective additive manufacturing technology that can produce high-quality ceramic parts. However, fabricating defect-free ceramic parts remains a challenge due to the brittleness and low toughness of ceramic materials. In this study, two coating agents (E44 and E51) were applied to alumina (Al2O3) parts, resulting in fewer defects, improved physical properties, and enhanced mechanical properties. The average surface roughness of coated Al2O3 parts was reduced from 2 μm to 35-180 nm, and the absorbed energy increased by approximately 17% with the use of the E51 coating agent. Finite element modeling and molecular dynamic simulations were conducted to analyze stress distribution changes and strengthening mechanisms induced by the coating agents.
CERAMICS INTERNATIONAL
(2023)
Article
Automation & Control Systems
Yunze Li, Dongzhe Zhang, Yingbin Hu, Weilong Cong
Summary: CoCrFeNiTi high entropy alloy (HEA) has been extensively studied as coating materials for industries like oil, gas, and mining due to its high hardness, excellent wear resistance, and good high-temperature stability. Laser-directed energy deposition (DED) has advantages in fabricating HEA coatings, but limited investigations have been done on the effects of input parameters on the mechanical properties of laser DED fabricated CoCrFeNiTi HEA coatings. In this study, CoCrFeNiTi HEA coatings were fabricated with spherical-shaped and irregular-shaped powders under different laser powers, and the effects on thermal characteristics, phase constitution, microstructure, and mechanical properties were investigated. Irregular-shaped powders resulted in uniform microstructures and higher hardness, while spherical-shaped powders showed increased microhardness and wear resistance with increasing laser power.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Anfu Guo, Jin Wang, Rongji Tang, He Kong, Dekun Kong, Peng Qu, Shaoqing Wang, Hongbing Wang, Yingbin Hu
Summary: Researchers studied the effects of powder bed preheating on powder aging mechanisms and proposed an epoxy resin infiltration method to mitigate side effects in powder bed fusion-sintered nylon12 (PA12) specimens. The study comprehensively examined the effects of powder recycling, building directions, and epoxy resin infiltration on microstructure characterizations, part quality, as well as thermal and mechanical properties of PBF-sintered PA12 specimens. The use of finite element analysis and molecular dynamic simulations provided insights into stress distribution, fracture features, and the atomic-level strengthening effects induced by epoxy resin infiltration.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Anfu Guo, Xiaodong Tao, He Kong, Xiaoyan Zhou, Hongbing Wang, Jianfeng Li, Fangyi Li, Yingbin Hu
Summary: Despite the current problems of low mechanical properties, strong hydrophilicity, and poor thermal resistance in biomass composites, this study successfully fabricated starch-based fiber-reinforced composites with foam structures for the first time. The addition of aluminum hydroxide (ATH) improved the microstructure and material composition, resulting in an increase of up to 37% in ultimate tensile strength. Molecular dynamic simulations further confirmed the positive effects of ATH on the tensile properties at an atomic level. In addition, the addition of ATH also improved the compressive properties, water resistance, and thermal stability of the composites, making them potential candidates to replace traditional packaging materials.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Mathematics, Applied
Lei Ma, Lihua Li, Yingbin Hu, Hao Liu
Summary: Computer network software prediction is an effective method to enhance software quality by closely analyzing data characteristics. To overcome the challenge of large invisible size of special data sets in computer software prediction, this study proposes a novel approach based on deep computer coding and reinforcement learning, which enables deep exploration of data features. The method first employs an unsupervised learning-based evaluation model to assess the data sets of 6 open projects, addressing the issue of classification uncertainty. Subsequently, deep self-encoding network models are investigated to reduce the data set size, connecting the model to train workers with shortened training sets and eventually making predictions using benchmarks. Experimental results demonstrate that this model outperforms standard software defect prediction and existing model-based software prediction models for fabric processes with repeated data volumes, and it is applicable to diverse algorithm categories.
APPLIED MATHEMATICS AND NONLINEAR SCIENCES
(2023)
Article
Chemistry, Physical
Yue Wu, Rongji Tang, Anfu Guo, Xiaodong Tao, Yingbin Hu, Xianliang Sheng, Peng Qu, Shaoqing Wang, Jianfeng Li, Fangyi Li
Summary: To promote green production and address concerns, there is an urgent need for new packaging materials to replace traditional plastics. Starch-based packaging materials, composed of starch, fiber, and plasticizers, offer a degradable and environmentally friendly alternative. The mechanical properties of these materials can be enhanced through the optimization of composite plasticizers and process parameters.
Article
Engineering, Environmental
Suyan Pang, Gan Zhang, Yingbin Hu, Xiaonan Luo, Ning Li, Jialiang Zhu, Jin Jiang, Bin Han, Tong Shen
Summary: This study evaluated the effect and potential mechanism of coconut shell and coal biochars on facilitating TN removal of anammox process. The results showed that both types of biochar could promote TN removal efficiency despite differences in surface groups and electron transfer capacity. Biochar could provide electrons for nitrite reduction and receive electrons from hydrazine oxidation, resulting in lower Delta NO3--N/Delta NH4+-N compared to the control reactor. Candidatus Jettenia outcompeted Candidatus Brocadia in the presence of biochar, and the abundance of Limnobacter also increased.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
