Article
Mathematics
Cesar Garcia-Hernandez, Juan-Jose Garde-Barace, Juan-Jesus Valdivia-Sanchez, Pedro Ubieto-Artur, Jose-Antonio Bueno-Perez, Basilio Cano-Alvarez, Miguel-Angel Alcazar-Sanchez, Francisco Valdivia-Calvo, Ruben Ponz-Cuenca, Jose-Luis Huertas-Talon, Panagiotis Kyratsis
Summary: Trochoidal milling is a well-established machining strategy that can be applied to any type of material, but is usually associated with advanced materials. By adjusting the feed speed of the milling tool, the chip width can be kept constant, optimizing material usage and reducing tool wear.
Article
Automation & Control Systems
Shaoming Yao
Summary: Based on error modeling, this paper proved the optimal pocket machining sequences of a simply end supported pocketed beam using mathematic induction method. The results demonstrated the optimal sequences and the errors generated during machining, providing insights for future applications in pocketed plate/board machining and surfacing.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Automation & Control Systems
Anshan Zhang, Xianli Liu, Caixu Yue, Rongyi Li, Steven Y. Liang, Lihui Wang
Summary: This paper analyzes the velocity effect sensitivity of ball-end cutters and the cutting speed at key positions, investigating the impact of the feed direction on cutting quality. Experimental results confirm the importance of feed direction selection in avoiding surface damage and improving the quality of the machined surface.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
S. Ramakrishnan
Summary: This study investigates the effects of abrasive waterjet milling (AWJM) on the surface roughness and microhardness of titanium alloy. The results show that waterjet pressure is a crucial factor in reducing surface roughness, increasing striations, and decreasing waviness. Furthermore, the AWJM process leads to a higher microhardness due to the material's permanent plastic deformation. X-Ray Diffraction analysis also reveals a reduction in lattice strain and an increase in crystallite size during the AWJM process, attributed to the presence of TiOxCx.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Green & Sustainable Science & Technology
Ge Wu, Guangxian Li, Wencheng Pan, Izamshah Raja, Xu Wang, Songlin Ding
Summary: This paper investigates the application of cryogenic minimum quantity lubrication (CMQL) in the machining of titanium thin-wall components. Comparative experiments show that CMQL machining can significantly lower the cutting loads and deformation values of thin-wall parts and enhance the wear resistance of the cutting tool and surface quality. The experimental outcomes demonstrate the feasibility of CMQL in improving the machinability of thin-wall components made from difficult-to-cut material.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Analytical
Ze Wu, Youqiang Xing, Jiansong Chen
Summary: By creating textures on rake faces and filling them with molybdenum disulfide, micro-textured tools can significantly reduce cutting forces, cutting temperatures, and power consumption, as well as improve tool life in dry milling of Ti-6Al-4V alloys. The cutting parameters have a significant impact on energy consumption, and the main mechanism for the improved performance of micro-textured tools is their self-lubricating function.
Article
Automation & Control Systems
Jiri Falta, Matej Sulitka, Pavel Zeman
Summary: This paper presents a computationally convenient analytical formulation of the stability of the cutting process with respect to self-excited vibrations in five-axis milling, addressing the difficulty in calculating stable machining conditions and introducing a new formulation for the cutting force Jacobian.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Automation & Control Systems
Jin Zhang, Li Ling, Daixin Luo, Chenjie Deng, Xuefeng Huang, Guibao Tao, Huajun Cao
Summary: Longitudinal ultrasonic vibration-assisted high-speed dry milling (LUVAHSDM) is used to improve the cutting performance and surface quality of Ti-6Al-4V (TC4). Various comparisons using different coated tools are made in terms of milling force, temperature, tool wear, surface roughness, and residual stress. It is found that AlTiN-coated tools achieve excellent cutting performance and surface quality, with reduced surface roughness and residual stress.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Mechanical
Hariketan Patel, Hiralal Patil
Summary: In dry machining of titanium alloys, the cutting speed, depth of cut, and feed rate have significant effects on surface roughness and tool wear mechanism.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Engineering, Multidisciplinary
Honghong Gao, Baoji Ma, Yuanpeng Zhu, Heng Yang
Summary: Longitudinal ultrasonic vibration-assisted milling (LUVAM) is used to improve the machinability and surface quality of titanium alloys Ti-6Al-4V under dry conditions. Increasing ultrasonic amplitude reduces cutting forces, cutting temperature, and surface roughness, leading to improved machinability and surface quality of Ti-6Al-4V.
Article
Engineering, Manufacturing
Y. Rahul, K. Vipindas, Jose Mathew
Summary: The study of residual stress after machining is essential for the service life and miniaturization of components. By utilizing Finite Element modeling and theoretical models, the effects of residual stress and various cutting parameters on cutting forces can be analyzed. Experimental and simulated results show good agreement, validating the accuracy of the models.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Multidisciplinary Sciences
Sener Karabulut, Musa Bilgin, Halil Karakoc, Dimitrios Skondras Giousios, Angelos P. Markopoulos
Summary: In this study, a pre-heating process was used to overcome machining difficulties in milling Ti-6Al-4V alloy, and the influence of pre-heating on surface roughness, vibration, power consumption, and cutting tool wear was investigated. The results showed that in hybrid milling, vibration and power consumption were significantly reduced compared to dry milling, with a small decrease in tool wear. However, surface roughness slightly worsened. The pre-heating process did not negatively affect grain sizes and microhardness on the machined surfaces.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Moaz H. Ali
Summary: This study uses the finite element method to simulate the cutting force, temperature, and surface roughness during titanium alloy machining, and verifies the accuracy of the simulation results through experimental data. The study found that increasing the feed rate can raise the cutting temperature and generate sparks, and surface roughness is directly proportional to the magnitude of the feed cutting force.
Article
Engineering, Mechanical
Rahul Yadav, N. D. Chakladar, Soumitra Paul
Summary: This study demonstrates through numerical modeling and experimental verification that introducing compressive residual stress on the surface of the workpiece can effectively control burr formation in micro-milling of Ti-6Al-4V, reducing burr width and height by 63%.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Manufacturing
Rakeshkumar Karunakaran, Luz D. Sotelo, Hitarth Maharaja, Calsey Nez, Monsuru Ramoni, Scott Halliday, Sushil Mishra, K. P. Karunakaran, Joseph A. Turner, Michael P. Sealy
Summary: This study achieved hybrid additive manufacturing (AM) of titanium alloys by coupling directed energy deposition with interlayer machining, which improved both ductility and strength. Interlayer machining introduced interruptions in printing process, leading to coarsening of acicular alpha laths at machined interfaces and hence enhanced ductility. The results highlight the feasibility of hybrid AM in enhancing the toughness of titanium alloys.
ADDITIVE MANUFACTURING
(2023)