Article
Engineering, Mechanical
Pedram Parandoush, Palamandadige Fernando, Hao Zhang, Chang Ye, Junfeng Xiao, Meng Zhang, Dong Lin
Summary: The study demonstrates the feasibility of using rotary ultrasonic machining for drilling carbon fiber reinforced polymer composites, showing superior quality characteristics compared to traditional methods, especially in terms of pullout delamination, smoother surface, and reduced burr formation. The findings suggest that the use of RUM process as a finishing operation for additive manufactured CFRP can contribute to higher quality and durability.
RAPID PROTOTYPING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Sheng Huang, Zhenjia Qi, Anfeng Zhang, Xiaoyu Zhang, Qingyu Li, Dichen Li
Summary: This study examines the microstructure and mechanical properties of directed energy deposited Ti6Al4V alloy after inter-layer ultrasonic impact peening and heat treatment. The results demonstrate that the anisotropy of mechanical properties can be reduced by breaking columnar prior-beta grains and spheroidizing primary alpha phases through heat treatment.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Laibo Sun, Chunhuan Guo, Lujun Huang, Fengchun Jiang, Kai Xu, Ruisheng Huang
Summary: The introduction of inter-layer ultrasonic impact (UI) strengthening in the low carbon steel wire and arc additive manufacturing (WAAM) process effectively improves the anisotropy problem. The columnar microstructure is transformed into a uniform and fine equiaxed microstructure through UI treatment. The results show that UI significantly improves stress concentration in the tensile process, reduces the anisotropy of tensile strength and yield strength, and promotes the formation of substructures that partially recrystallize. Additionally, inter-layer ultrasonic impact strengthening results in local misorientation reduction, grain refinement, and texture orientation strength weakening.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Physics, Applied
Michael Y. Wang, Mythili Thevamaran, Michael Sabatini Mattei, Brandon G. Hacha, Gerardo Andres Mazzei Capote, Zongfu Yu, Tim Osswald, Randall H. Goldsmith, Dan J. Thoma, Chu Ma
Summary: In this study, we report an underwater acoustic topological waveguide that operates in a new frequency range. The existence of edge states in the waveguide was demonstrated both numerically and experimentally. This research has potential applications in underwater/biomedical sensing, energy transport, and acoustofluidics.
APPLIED PHYSICS LETTERS
(2022)
Article
Engineering, Industrial
Hossam A. Kishawy, Nam Nguyen, Ali Hosseini, Mohamed Elbestawi
Summary: The application of additively manufacturing (AM) metals is growing rapidly, but post-process finish machining is still necessary. This paper investigated the machining characteristics of AM Ti-6Al-4V and determined its high-strain high-temperature behavior. Machining tests were conducted in different directions to examine the chip formation mechanism.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Manufacturing
Sebastian Greco, Katja Klauer, Benjamin Kirsch, Jan C. Aurich
Summary: Additive manufacturing is suitable for economically producing highly individual parts, but requires machining for quality surfaces. Microstructuring and vibration-assistance can influence the process forces and burr formation in micro milling of additively manufactured materials.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Automation & Control Systems
Yves Bresson, Amevi Tongne, Pierre Selva, Lionel Arnaud
Summary: The Selective Laser Melting (SLM) process is an industrial manufacturing technique used to produce high value-added components. However, the mechanical stresses generated during the process may cause cracking and warping of the parts, which limits its wide application. This study investigates the fractur behavior of cone supports using a numerical model and actual manufacturing of an industrial part.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Industrial
M. P. Sealy, R. Karunakaran, S. Ortgies, G. Madireddy, A. P. Malshe, K. P. Rajurkar
Summary: Combining additive manufacturing with interlayer ultrasonic peening can improve the corrosion resistance of magnesium alloys by strengthening mechanisms and compressive residual stress. Interlayer peening can provide time-resolved control over corrosion and reduce local corrosion significantly.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2021)
Article
Automation & Control Systems
Wenjian Huang, Shiyu Cao, Hao Nan Li, Qi Zhou, Chaoqun Wu, Dahu Zhu, Kejia Zhuang
Summary: This paper investigates tool wear of high-speed steel twist drills in ultrasonic vibration-assisted drilling of CFRP and compares the wear behaviors with conventional drilling based on experimental observation. The introduction of UVAD effectively reduces tool flank wear, with increased feed rate and decreased spindle speed leading to decreased tool wear. The findings may provide guidance on cutting parameter selection for extending tool life in UVAD of CFRP.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Z. P. Sun, Y. B. Guo, V. P. W. Shim
Summary: Additive manufacturing techniques allow for the fabrication of polymeric lattice structures with complex cell architectures. However, the layer-wise fabrication process introduces angle-dependent properties, leading to different mechanical responses in lattices depending on the loading direction. This study investigates how the angle of printing influences the tensile material properties of cell strut material, both in static and dynamic conditions. The results show that the rate-sensitivity of the material depends on the printing angle, and the load-deformation responses and lattice crushing patterns differ significantly when subjected to compression along different directions.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
Article
Acoustics
Yu Liu, Xinyan Wang, J. P. Oliveira, Jingjing He, Xuefei Guan
Summary: This study introduces a phased array ultrasonic method to characterize the inhomogeneity and anisotropy in metallic materials fabricated by additive manufacturing. The backscattering intensity and root mean square of the backscattering signals are used to quantify the microstructural inhomogeneity and anisotropy, respectively. Experimental results on wire and arc additively manufactured aluminum alloy show that the sample is inhomogeneous and weakly anisotropic.
Article
Automation & Control Systems
Yingjian Tian, Ping Zou, Xiaoqiang Wang, Yuanfei Ling
Summary: This study investigates the chip shapes in longitudinal-torsional composite ultrasonic vibration-assisted drilling (LTC-UAD). The cutting thickness model is established and the conditions for complete geometric chip breaking are explored. Machining experiments verify the theoretical analysis and show that LTC-UAD has advantages over conventional drilling in breaking chips. The influences of vibration amplitude, spindle speed, and feed rate on chip shapes are also analyzed.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Review
Engineering, Manufacturing
Guangxian Li, Sanjeet Chandra, Rizwan Abdul Rahman Rashid, Suresh Palanisamy, Songlin Ding
Summary: This paper presents a comprehensive review on the machinability of titanium alloys fabricated by various additive manufacturing (AM) techniques. By analyzing factors such as cutting forces, surface finish, and tool wear, it was found that the improvement in mechanical properties of AMed Ti resulted in higher cutting forces and temperatures, which significantly affected tool wear and surface quality. However, there is limited literature on significantly improving the machinability of AMed Ti components, suggesting a need for future research.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Engineering, Manufacturing
Guohao Zhang, Xufei Lu, Jiaqiang Li, Jing Chen, Xin Lin, Meng Wang, Hua Tan, Weidong Huang
Summary: A novel depositing strategy is designed to preserve equiaxed grains and interrupt the epitaxial growth of columnar grains in metal additive manufacturing, resulting in a superior microstructure and reduced anisotropy.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Mechanical
Navneet Khanna, Parth Raval, Deep Patel, Ravikumar Prajapati, Julius Schoop, Kishor Kumar Gajrani
Summary: This study evaluates the sustainable subtractive manufacturing of Wire Arc Additive Manufactured (WAAMed) Inconel 625. Compared to other additive manufacturing techniques, WAAM is economically efficient and has a higher deposition rate. Post-subtractive manufacturing operations are often required for additive manufactured (AMed) parts to make them ready for industrial applications. Drilling trials were conducted on AMed and wrought IN625 under three environments: dry, flood, and cryogenic. Their machinability was evaluated in terms of cutting forces, torque, power consumption, and surface roughness. The surface morphology of drill tools, drilled holes, and machined chips were analyzed and compared. Results show that the cryogenic environment enhances tool life and surface integrity for drilling of WAAMed parts, whereas the flood environment emerged as a better cooling/lubricating condition for machining wrought specimens.
TRIBOLOGY INTERNATIONAL
(2023)
