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
Acoustics
Dongxi Lv, Mingda Chen, Youqiang Yao, Chun Yan, Gang Chen, Yingdan Zhu
Summary: Increased thickness of CFRP plate affects coolant flow velocity, leading to residual chips accumulation causing friction effects and thermal load increase, resulting in chips adhesion on tool surface and workpiece jamming.
Article
Engineering, Industrial
Shiyu Cao, Hao Nan Li, Wenjian Huang, Qi Zhou, Ting Lei, Chaoqun Wu
Summary: This paper proposes a delamination prediction model for CFRPs using Ultrasonic Vibration Assisted Drilling (UVAD) with the abrasive diamond hole saw or core drill, which can calculate the delamination factor and thickness, thus solving the delamination issue in the drilling process of CFRPs.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Mechanics
Zhenyu Shao, Xinggang Jiang, Daxi Geng, Yihang Liu, Zehua Zhou, Shaomin Li, Deyuan Zhang, Wei Zheng
Summary: This study investigates the relationship between drilling temperature characteristics, heat damage, and surface integrity in Carbon Fiber Reinforced Plastic (CFRP)/Titanium Alloy stacks during Ultrasonic Assisted Drilling (UAD) and Conventional Drilling (CD). Results reveal a significant drop in interface temperature in UAD compared to a slight increase in CD, leading to reduced thermal damage and improved drilling performance in UAD. Through these findings, the study identifies ways to mitigate negative temperature effects in drilling processes of CFRP/Ti stacks.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Amani Mahdi, Souad Makhfi, Malek Habak, Yosra Turki, Zoubeir Bouaziz
Summary: This study investigates the drilling quality and optimization methods of carbon fiber reinforced polymer (CFRP) using response surface methodology (RMS) and artificial neural network (ANN). The results show that drilling quality is influenced by cutting parameters and tool geometry, with entrance delamination and thrust force and torque evolution mainly depending on feed rate, and exit delamination depending on feed rate for step and spur drills and spindle speed and feed rate for twist drill. The ANN model provides more accurate results compared to the RMS. The use of spur drill ensures optimal drilling quality and productivity. The significance of this study lies in the development of an artificial intelligence program for determining optimal drilling conditions without extensive experimentation.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Polymer Science
Luis Roldan-Jimenez, Fermin Banon, Ana P. Valerga, Severo R. Fernandez-Vidal
Summary: An investigation into the EDM drilling process for unidirectional composite materials was conducted, evaluating the influence of various cutting parameters on the quality of the final hole. Visual inspection was used to assess the final state of the material and electrode wear, helping to establish the optimal range of cutting parameters for performance. Additionally, contour diagrams based on predictive models were obtained to directly relate input and output variables.
Article
Crystallography
Jingyuan He, Honghua Su, Ning Qian, Pengfei Xu
Summary: SiCf/SiC composite material has excellent properties including high strength, low specific gravity, and high temperature resistance, making it highly promising in the combustion chamber of rockets or aero engines. This study introduces a novel strategy for hole-making in SiCf/SiC parts, namely rotary ultrasonic-assisted drilling (RUAD) using an orderly arranged brazed diamond core drill. The results demonstrate that the proposed approach improves tool life and accuracy in hole-making, enhances drilling quality and efficiency, and reduces drilling force and torque.
Article
Automation & Control Systems
Wang Shuaipu, Liang Jie
Summary: A variable feed drilling method based on a sinusoidal curve is proposed to reduce delamination damage and improve drilling quality in CFRP drilling. Experimental results show that this method can reduce the thrust force near the hole exit and improve surface quality and hole wall morphology.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
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
Nafiz Yasar, Mehmet Erdi Korkmaz, Munish Kumar Gupta, Mehmet Boy, Mustafa Gunay
Summary: In the aviation and structural industries, the requirement for smooth holes is a critical safety issue, as the quality of holes can affect the fatigue strength of structures. This study successfully minimized limitations in the machining of carbon fiber-reinforced composite (CFRP)/Ti6Al4V alloy stack material and addressed the delamination problem that may occur in composite laminates by optimizing cutting conditions and selecting appropriate cutting tools.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Aerospace
Song Dong, Wenhe Liao, Kan Zheng, Feng Xue, Lianjun Sun
Summary: This paper investigates the hole surface strengthening mechanism of robotic rotary ultrasonic drilling (RRUD) for CFRP/aluminum stacks, establishes a theoretical residual stress model, and conducts fatigue life experiments of riveted joints. The experimental results indicate that ultrasonic vibration can increase the fatigue life of riveted joints.
CHINESE JOURNAL OF AERONAUTICS
(2023)
Article
Mechanics
Linghao Kong, Dong Gao, Yong Lu
Summary: This paper discusses the common damages in CFRP drilling and proposes a new ODR tool to reduce processing damages effectively. Experiments show that machining with the ODR tool results in less thrust force and fewer damages compared to end mills.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Mechanical
Yu Du, Tao Yang, Chang Liu
Summary: This study compared the drilling performance of CF/PEEK composites using conventional drilling (CD) and ultrasonic-assisted drilling (UAD). The results showed that UAD improved the cutting ability of the drill bit, reduced thrust force, increased machining temperature, and effectively suppressed delamination, burr, and surface roughness, leading to improved surface integrity.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2023)
Article
Polymer Science
Arunachalam S. S. Balan, Chidambaram Kannan, Kunj Jain, Sohini Chakraborty, Siddharth Joshi, Krishna Rawat, Walaa F. Alsanie, Vijay Kumar Thakur
Summary: This study investigates the effect of cryogenic conditions on achieving better hole quality with reduced delamination in CFRP composites. Both numerical analysis and experimental results showed a significant reduction in delamination factor under cryogenic drilling conditions.
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, Manufacturing
Daxi Geng, Zhenghui Lu, Guang Yao, Jiajia Liu, Zhe Li, Deyuan Zhang
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
(2017)
Article
Automation & Control Systems
Xinggang Jiang, Xianbin Zhu, Christopher Yee Wong, Deyuan Zhang, Daxi Geng
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2019)
Article
Acoustics
Guang Yao, Deyuan Zhang, Daxi Geng, Xinggang Jiang
Review
Mechanics
Daxi Geng, Yihang Liu, Zhenyu Shao, Zhenghui Lu, Jun Cai, Xun Li, Xinggang Jiang, Deyuan Zhang
COMPOSITE STRUCTURES
(2019)
Article
Automation & Control Systems
Zhenyu Shao, Xinggang Jiang, Zhe Li, Daxi Geng, Shaomin Li, Deyuan Zhang
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2019)
Article
Engineering, Multidisciplinary
Daxi Geng, Yihang Liu, Zhenyu Shao, Mingliang Zhang, Xinggang Jiang, Deyuan Zhang
COMPOSITES PART B-ENGINEERING
(2020)
Article
Chemistry, Physical
Mingliang Zhang, Deyuan Zhang, Daxi Geng, Zhenyu Shao, Yihang Liu, Xinggang Jiang
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Multidisciplinary
Mingliang Zhang, Deyuan Zhang, Hailin Guo, Ze Gao, Daxi Geng, Jiajia Liu, Xinggang Jiang
Article
Materials Science, Multidisciplinary
Mingliang Zhang, Deyuan Zhang, Daxi Geng, Jiajia Liu, Zhenyu Shao, Xinggang Jiang
MATERIALS & DESIGN
(2020)
Article
Mechanics
Zhenyu Shao, Xinggang Jiang, Daxi Geng, Yihang Liu, Zehua Zhou, Shaomin Li, Deyuan Zhang, Wei Zheng
Summary: This study investigates the relationship between drilling temperature characteristics, heat damage, and surface integrity in Carbon Fiber Reinforced Plastic (CFRP)/Titanium Alloy stacks during Ultrasonic Assisted Drilling (UAD) and Conventional Drilling (CD). Results reveal a significant drop in interface temperature in UAD compared to a slight increase in CD, leading to reduced thermal damage and improved drilling performance in UAD. Through these findings, the study identifies ways to mitigate negative temperature effects in drilling processes of CFRP/Ti stacks.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Guang Yao, Deyuan Zhang, Daxi Geng, Liping Wang
Summary: This study proposed a novel ultrasonic vibration-assisted electrosurgical cutting system to improve cutting performance by reducing tissue adhesion and thermal injury. Finite element simulations and experiments demonstrated that UV-A technology can significantly decrease temperature distribution and thermal injury area, making it a promising and practical technique for reducing tissue adhesion and thermal injury.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Multidisciplinary
Yihang Liu, Daxi Geng, Zhenyu Shao, Zehua Zhou, Xinggang Jiang, Deyuan Zhang
Summary: A novel ultrasonic peening drilling (UPD) technology that combines strengthening and machining was proposed, aiming to improve fatigue resistance of holes, enhance surface quality, and increase dimensional accuracy in aircraft assembly. Feasibility experiments on Ti-6Al-4V demonstrated significantly smoother machined surfaces, narrower dimensional tolerances, increased surface micro hardness, and deeper subsurface hardening layer depth with UPD compared to conventional drilling (CD), making it a promising method for finish drilling of aircraft fastening holes.
MATERIALS & DESIGN
(2021)
Article
Engineering, Mechanical
Xiaoming Yin, Yihang Liu, Shicai Zhao, Xun Li, Daxi Geng, Deyuan Zhang
Summary: Ultrasonic-assisted technology has been found to be effective for milling Inconel 718. This study compared tool life and wear mechanisms between high-speed Ultrasonic Peening Milling (UPM) and Conventional Milling (CM) under different wear states. The analysis showed a 32.5% increase in tool life in UPM due to lower tool wear compared to CM. More importantly, UPM significantly improved surface quality and fatigue life with an average increase of 4-17 times.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Engineering, Manufacturing
Deyuan Zhang, Zhenyu Shao, Daxi Geng, Xinggang Jiang, Yihang Liu, Zehua Zhou, Shaomin Li
Summary: This study proposed a wave-motion milling (WMM) method to improve the quality of CFRP hole-manufacturing. The experimental results showed significant improvements in hole surface quality, reduced thrust force, decreased hole exit damages, and alleviated tool wear in WMM compared to conventional helical milling (CHM).
INTERNATIONAL JOURNAL OF EXTREME MANUFACTURING
(2021)
