Article
Engineering, Mechanical
R. Bibeye Jahaziel, V Krishnaraj, B. Geetha Priyadarshini
Summary: Dimple textured tool outperforms commercial tools in terms of cutting force, temperature, shear angle, chip morphology, and tool life. The dimple textures on the rake face of the cutting tool improve the heat transfer mechanism at the tool-chip interface, resulting in reduced cutting forces, lower temperatures, and improved tool life.
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
(2022)
Article
Automation & Control Systems
Javier Dominguez-Caballero, Sabino Ayvar-Soberanis, Jin Kim, Anish Roy, Lin Li, David Curtis
Summary: This study proposes a hybrid laser- and ultrasonic-assisted machining (LUAM) technique to improve the machinability of Ti-6Al-4V alloy in a turning process. The results reveal that LUAM process demonstrates process improvement with wider range of cutting speeds and depths of cut.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Materials Science, Coatings & Films
Xueyang Zhao, Hua Zhang, Hui Liu, Shuangjian Li, Wei Li, Xiaojian Wang
Summary: A nitride coating prepared by selective laser melting significantly improved the bio-tribological properties of additive manufactured biomedical titanium alloys. The combination of surface texture and nitride coating enhanced substrate hardness and resistance to plastic deformation, reducing frictional coefficient and wear rate.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Manufacturing
Yuan Wei, Shuang Li, Fangyi Shi, Xuewen Wang, Simon S. Park
Summary: Direct laser assisted machining (DLAM) is an effective method for improving the machinability of superalloys. In this study, improved DLAM with a cubic zirconia tool was developed, which has higher applicability and lower cost. Cutting tests on Al 7075-T6 and Ti-6Al-4V were conducted, and the results showed that DLAM with cubic zirconia tool could improve cutting by reducing cutting forces and achieving smoother surface finish. Finite element simulation was also carried out to estimate the cutting temperature.
JOURNAL OF MANUFACTURING PROCESSES
(2023)
Article
Engineering, Manufacturing
Thomas Achee, Gabe Guss, Alaa Elwany, Manyalibo Matthews
Summary: The study shows that the laser pre-sintering (LPS) method is most effective in the 1-4 J/mm(3) volumetric energy density processing regimes, minimizing the common experimentally observed problems with the LPBF process.
ADDITIVE MANUFACTURING
(2021)
Article
Engineering, Industrial
Tianxiang Li, Hu Long, Tielin Shi, Jing Yang, Jian Duan
Summary: In this paper, a novel near-infrared two-color pyrometer system is developed and applied to measure the cutting zone temperature under dry and wet cutting of Ti-6Al-4V alloy. The developed pyrometer exhibits good dynamic response and high measuring accuracy. It can measure the tool edge temperature quickly and accurately in wet cutting conditions.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Gaohui Liu, Yonghong Fu, Yun Zhou, Jinghu Ji, Zehui Gu
Summary: By introducing volcano-like textures on the tool rake face, the adhesion and wear on the tool surface in the machining Ti-6Al-4V alloy process are reduced, leading to improved tool life and machining quality. The investigation combines simulation and experiment to study the effects of the textured tools, and provides a basis for surface texture design and optimization of carbide tools.
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2022)
Review
Chemistry, Physical
Chen Zhang, Dongyi Zou, Maciej Mazur, John P. T. Mo, Guangxian Li, Songlin Ding
Summary: Titanium alloys are widely used in various industries for their excellent corrosion resistance and outstanding mechanical properties. However, they are difficult to machine due to their low thermal conductivity and high chemical reactivity. Additively manufactured titanium alloys present additional challenges in machining, such as increased anisotropy and strength. This paper reviews the machining characteristics of additively manufactured titanium alloys, focusing on the effects of anisotropy, porosity, and post-processing treatment, and presents a future outlook for machining these alloys.
Article
Engineering, Mechanical
Mohsen Soori, Behrooz Arezoo
Summary: Tool wear during drilling operations can cause damage and should be minimized. It affects tool life, dimensional accuracy and surface integrity of the final product. Virtual machining systems are used to predict and minimize tool wear, and optimize drilling parameters.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(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
Chemistry, Physical
Munish Kumar Gupta, Muhammad Jamil, Ghulam Hussain, Mohammed Alkahtani, Mustufa Haider Abidi, Grzegorz M. Krolczyk
Summary: Recent pandemics have driven the industries to seek eco-benign cutting fluids for improving machinability. This study proposes a sustainable hybrid lubri-coolant by mixing ethanol-biodegradable ester oil in varying proportions and adding dry ice for enhanced cooling capabilities. Experimental findings show changes in the thermophysical properties and potential application of the hybrid lubri-coolant in high-speed machining of difficult-to-cut materials for the aerospace industry.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Automation & Control Systems
Aqib Mashood Khan, Ghulam Hussain, Mohammed Alkahtani, Ayoub Alzabidi, Mustufa Haider Abidi, Ning He
Summary: The study investigates the holistic sustainability of external turning of titanium alloy under different cutting environments, finding that hybrid machining process with Al-GnP nanoparticle-based MQL assistance is more environmentally and economically sustainable compared to conventional flood-assisted machining. Results show reduced specific cumulative energy consumption, CO2 emissions, and production costs in the sustainable hybrid machining process.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
V. N. Vilane, R. D. Knutsen, J. E. Westraadt
Summary: Temporary hydrogen alloying treatment can modify the coarse-grained microstructure of a titanium alloy, resulting in improved strength and ductility. The ductility of the alloy is affected by the dehydrogenation temperature, with excessive temperature leading to embrittlement. Controlling the dehydrogenation treatment can optimize the performance of the alloy.
MATERIALS CHARACTERIZATION
(2022)
Article
Engineering, Multidisciplinary
Muhammad Jamil, Ning He, Wei Zhao, Munish Kumar Gupta, Aqib Mashood Khan
Summary: Ti-6Al-4V alloy is widely used in various engineering applications due to its unique characteristics, but machining of this alloy generates high cutting temperature. Cryogenic coolants are commonly used to improve cutting performance, but they have poor lubrication. The study explores the use of hybrid lubri-coolants and employs finite element modeling to simulate cutting temperatures in milling Ti-6Al-4V.
Article
Engineering, Industrial
Akira Hosokawa, Koki Kosugi, Takashi Ueda
Summary: This study investigates the effect of high-pressure cutting fluid on the turning characteristics of Ti-6Al-4V alloy. The cutting temperature was measured using a noncoated carbide tool and evaluated with respect to other cutting characteristics. The viability of a coated tool was also examined, along with the effect of coolant jet placement and tools with textured rake face.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2022)
