Article
Automation & Control Systems
Zhengzhong Zhang, Yonglin Cai, Xiaolin Xi, Haitong Wang
Summary: This study proposes a non-uniform allowance planning method for thin-walled parts based on the workpiece deformation constraint, which can reduce the deformation and improve the machining accuracy of thin-walled parts during milling.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Automation & Control Systems
Pengchao Li, Chengxin Wang, Lingqi Zeng, Haibo Liu, Yongqing Wang
Summary: In this paper, the suppression mechanism of interface constraint on Poisson burr is analyzed, and an analytical model for predicting the size of Poisson burr with interface constraint is established. The model can predict the height and thickness of the Poisson burr, and it is verified by the finite element method and experiment. The inhibition effects of interface constraint on the Poisson burr under different workpiece strengths, cutting depths, cutting widths, tool rake angles, and constraint strengths are compared.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Polymer Science
Daniyar Syrlybayev, Beibit Zharylkassyn, Aidana Seisekulova, Asma Perveen, Didier Talamona
Summary: Fused deposition modeling (FDM) is an affordable and widely used additive manufacturing technology, but its complex physics can lead to non-uniform internal stresses and warpage deformation. Researchers developed a Finite Element Analysis (FEA) model that showed good correlation with experimental results, and optimized warpage using a Taguchi Design of Experiments. By identifying optimal process parameters, they were able to minimize warpage to approximately 320 microns.
Article
Engineering, Multidisciplinary
Xuan Wang, Shuming Zhang
Summary: The geoelectric fields induced during geomagnetic disturbances may disrupt technological systems at the Earth's surface. This paper introduces the applicability of a two-dimensional finite element method (2D-FEM) for studying lateral variations of Earth's conductivity, which includes both E and H polarization cases. The paper calculates the geoelectric field distribution near a continent-ocean boundary using different models and compares it to analytic solutions to verify the accuracy of the finite element method.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Computer Science, Interdisciplinary Applications
Adrian Amor-Martin, Luis E. Garcia-Castillo, Jin-Fa Lee
Summary: This study investigates the accuracy of solutions using non-conformal DDM, with three experiments analyzing verification and acceptable accuracy under different conditions. The results suggest that non-conformal DDM can achieve acceptable accuracy in various scenarios.
JOURNAL OF COMPUTATIONAL PHYSICS
(2021)
Article
Engineering, Mechanical
Jiang Guo, Zengxu He, Bo Pan, Bin Wang, Qian Bai, Jinxing Kong, Renke Kang
Summary: In this study, the effect of residual stress-related on the deformation of pure copper substrate during double-sided lapping was investigated using finite element method (FEM). A prediction model was proposed to simulate workpiece machining deformation in the lapping process by considering the initial residual stress and the stress caused by lapping. The results showed that the warping deformation of the workpiece in double-sided lapping is primarily caused by the redistribution of initial residual stress due to uneven material removal.
CHINESE JOURNAL OF MECHANICAL ENGINEERING
(2023)
Article
Automation & Control Systems
Xiaolin Xi, Yonglin Cai, Haitong Wang, Defu Zhao
Summary: In this study, a deformation prediction model is proposed for the milling process of thin-walled parts, incorporating the super-element method and a novel node re-sorting method to optimize stiffness direction. Simulation and experiments validate the accuracy of the proposed model in minimizing machining deformation.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Sijun Niu, Enrui Zhang, Yuri Bazilevs, Vikas Srivastava
Summary: Physics-informed neural networks (PINN) can solve partial differential equations (PDEs) in the context of plasticity by explicitly encoding the mathematical information into the loss functions. This study presents a framework of finite-strain elasto-plasticity for PINN, considering rate-independent isotropic hardening. The performance of PINN is demonstrated through a numerical example and its accuracy and robustness are assessed in terms of mesh refinement and network architecture design.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2023)
Article
Automation & Control Systems
Shujing Wu, Feiyang Chen, Dazhong Wang, Guoqiang Wang, Changhe Li, Jinzhong Lu
Summary: In this study, a planar orthogonal cutting model was established using the finite element method (FEM), and the cutting mechanism was investigated based on this model. The relationship between the cutting temperature model and the residual temperature of the processed workpiece at different distances from the machined surface was analyzed through simulations. Additionally, the residual stress-depth curve was proposed to be an exponential function and a linear superposition of high-order Gaussian functions based on the cutting force and temperature model. This research is significant in revealing the mechanism of cutting force and residual stress formation in difficult-to-machine materials.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Automation & Control Systems
Nian-Pu Xue, Qiong Wu, Rui-Sheng Yang, Han-Jun Gao, Zhang Zhang, Yi-Du Zhang, Lei Li, Jing Guo
Summary: Aluminum alloys are widely used in aerospace products due to their high specific stiffness and high specific strength. In the machining process of thin-walled aluminum ring workpieces, the stiffness of the parts decreases and the residual stress is released, resulting in noticeable machining deformation. A new theoretical analysis model and finite element model are established to analyze the distribution of initial residual stress and the law of machining deformation. The accuracy of simulation results is verified by experiments, while the theoretical analytical model explains the deformation qualitatively. The residual stress of the rolled ring is about 40 to 80 MPa, leading to a maximum deformation of 0.4016 mm and an elliptical cross-section.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Review
Materials Science, Multidisciplinary
Oleksandr Yevdokymov, Vitalii Kolesnyk, Jozef Peterka, Tomas Vopat, Munish Kumar Gupta, Dmytro Lisovenko, Andrii Dovhopolov
Summary: Nickel superalloys, with Inconel 718 being a well-known example, have a wide range of applications in industries such as aerospace, energy, and automotive. This article discusses the research and improvement of machining conditions for Inconel 718, analyzing tool materials, methods, and coating types used in turning operations. The study also considers finite element method modeling of processing processes and identifies areas for future research.
Article
Mathematics
Chenfei Shao, Yanxin Xu, Huixiang Chen, Sen Zheng, Xiangnan Qin
Summary: In this study, a combination of ordinary kriging interpolation method and finite element method (FEM) is proposed to estimate the deformation field of arch dams. The FEM is used to calculate the basic deformation of the arch dam based on the inversion of computation parameters. Then, the ordinary kriging interpolation method is introduced to estimate the spatial variance deformation at each point of the dam. Experimental results show that the proposed method significantly improves the accuracy and computational efficiency of arch dam deformation field estimation and is of great practical importance in characterizing the deformation behavior of arch dams.
Article
Automation & Control Systems
Haibo Liu, Chengxin Wang, Zhaohuan Liu, Kuo Liu, Shaowei Jiang, Yongqing Wang
Summary: This study introduces the impact of LN2 cryogenic machining on the surface residual stress distribution of TC4 and establishes a numerical prediction model. Through analysis and experiments, it is shown that LN2 cryogenic machining can effectively reduce residual tensile stress.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Mechanical
D. J. Bang, A. Ince, E. Oterkus, S. Oterkus
Summary: In this study, fatigue crack growth assessment of 2024-T3 aluminum alloy was conducted using a peridynamic fatigue model, and the remaining-life equation was solved through numerical and analytical approaches. It was found that the analytical approach was more accurate and stable in predicting crack growth rates and simulating material deformation under various loading conditions, while the numerical approach had shortcomings in accurate predictions for different loading conditions. Additionally, the computational time of the analytical approach was considerably shorter compared to the numerical approach.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2021)
Article
Automation & Control Systems
Daniel Svensson, Tobias Andersson, Andreas Andersson Lassila
Summary: This paper presents 3D finite element simulations of indexable drilling of AISI4140 workpieces, focusing on predicting drilling torque, thrust force, temperature distributions and chip geometries. While torque predictions are accurate, thrust force predictions show discrepancies with experimental data.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Multidisciplinary
Myriam Orquera, Sebastien Campocasso, Dominique Millet
JOURNAL OF ENGINEERING DESIGN
(2020)
Article
Engineering, Manufacturing
Jun Zhang, Xiang Xu, Jose Outeiro, Hongguang Liu, Wanhua Zhao
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2020)
Article
Computer Science, Interdisciplinary Applications
Maxime Chalvin, Sebastien Campocasso, Vincent Hugel, Thomas Baizeau
ROBOTICS AND COMPUTER-INTEGRATED MANUFACTURING
(2020)
Article
Engineering, Manufacturing
Francesco Careri, Stano Imbrogno, Domenico Umbrello, Moataz M. Attallah, Jose Outeiro, Antonio C. Batista
Summary: The study compared the effects of two different post-processing sequences on the surface integrity of components made with Inconel 718 superalloy, and proposed suitable solutions for additive manufacturing post-process operations.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Automation & Control Systems
Wenyu Cheng, Jose C. Outeiro
Summary: The excellent mechanical and physical properties of Ti6Al4V alloy make it suitable for a wide range of applications, especially in the aerospace industry. However, its difficult-to-cut nature poses challenges for improving its machinability and surface integrity. This study develops a cutting model that simulates the major outcomes of the machining process, including forces, temperature distribution, chip geometry, chip compression ratio, and residual stresses. The model shows good predictions for most cutting conditions, but underestimates the thrust force and shows differences in residual stress predictions. The study highlights critical points that should be considered in future developments of cutting models.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Industrial
Cheng Hu, Jue Wang, Liangliang Lin, Jian Weng, Jose Outeiro, Kejia Zhuang
Summary: This study investigated the cutting process with chamfered tools through theoretical modeling and experimental work. By analyzing the material flow mechanism and discussing the effects of tool preparation factors on BUE extrusion, it was found that proper chamfered edge design can result in optimal flow conditions and effectively restrain lateral burr formation. The present model yields more accurate predictions of material flow states compared to released models and experimental measurements, providing insights for the optimal design of cutting tools with chamfered edge.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Guang-Chao Nie, Xiao-Ming Zhang, Zheng-Yan Yang, Dong Zhang, Jose Outeiro, Hai-Gen Liu, Han Ding
Summary: This study investigates the effects of cutting edge radius on surface integrity during machining of nickel-based cast superalloy. It is found that the cutting edge radius significantly influences surface roughness, subsurface deformation, and work hardening. The thickness of plastic deformation increases dramatically when the cutting edge radius is greater than the uncut chip thickness, while the machined surface roughness can be improved when the cutting edge radius is between 30% and 60% of the uncut chip thickness.
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2022)
Article
Engineering, Industrial
Sebastien Campocasso, Maxime Chalvin, Ugo Bourgon, Vincent Hugel, Matthieu Museau
Summary: With the rise of additive manufacturing, Schwarz infill patterns have been increasingly used for lightweight parts or improving heat exchange efficiency. This study proposes a framework based on isoheight layers to allow multi-axis manufacturing of a Schwarz-P pattern using wire arc additive manufacturing (WAAM). Experimental validation on an 8-axis robotised cell is performed after describing the steps involved in the computer-aided manufacturing (CAM) chain.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Manufacturing
Myriam Orquera, Fabien Albrand, Cristiam Lasso, Dominique Millet, Sebastien Campocasso
Summary: The main objectives of optimising a mechanical system are to reduce costs and increase performance. Additive manufacturing enables shape optimisation to place material where it is needed. However, this optimisation results in changes in mechanical behaviour, such as connections, necessitating redesigning or adapting functional surfaces. This study proposes two approaches to optimise mechanisms and demonstrates the impact on performance improvement by adapting non-design spaces.
INTERNATIONAL JOURNAL OF INTERACTIVE DESIGN AND MANUFACTURING - IJIDEM
(2023)
Article
Chemistry, Multidisciplinary
Yutao Zhang, Jose C. Outeiro, Corinne Nouveau, Bertrand Marcon, Lamice A. Denguir
Summary: This study aims to analyze the tribological conditions and performance of new coatings specifically developed for cryogenic-assisted machining. The results show that sliding speed and cooling/lubrication strategy are the key factors affecting the friction coefficient and adhesion.
APPLIED SCIENCES-BASEL
(2023)
Article
Computer Science, Interdisciplinary Applications
Cheng Hu, Jose Outeiro, Kejia Zhuang, Helene Birembaux
Summary: This study investigates the influence of different tool edge microgeometries on the cutting of Ti6Al4V titanium alloy using the LAG and CEL approaches. The LAG-nSL model gives the best predictions of chip morphology, cutting force, and thrust force, while the LAG-SL model offers good predictions of the maximum compressive residual stress.
SIMULATION MODELLING PRACTICE AND THEORY
(2023)
Article
Engineering, Manufacturing
Jose Outeiro, Wenyu Cheng, Francisco Chinesta, Amine Ammar
Summary: In this study, cutting tests on Ti-6Al-4V titanium were conducted using tungsten carbide tools to investigate the influence of cutting conditions on cutting forces, chip compression ratio, and residual stresses. Machine learning methods were used to predict residual stresses for different cutting conditions, and optimal cutting conditions were determined.
JOURNAL OF MANUFACTURING AND MATERIALS PROCESSING
(2022)
Review
Engineering, Mechanical
Guangchao Nie, Zhengyan Yang, Dong Zhang, Xiaoming Zhang, Jose Outeiro, Han Ding
Summary: This article summarizes and analyzes the application of imaging techniques in the study of chip formation, and outlines the progress and future directions in the research of surface integrity.
INTERNATIONAL JOURNAL OF MECHANICAL SYSTEM DYNAMICS
(2022)
Article
Materials Science, Multidisciplinary
L. A. Denguir, J. C. Outeiro, G. Fromentin
Summary: The mechanical, physical, and microstructural properties of metals are significantly affected by the machining process, consequently altering their electrochemical properties and corrosion resistance. By controlling cutting conditions, manufacturers can impact surface integrity and electrochemical behavior, ultimately enhancing performance. Proper selection of cutting conditions can improve surface performance and electrochemical behavior.
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
(2021)
