Theoretical and Experimental Investigations into Wire Electrochemical Turning (Wire-ECTrg) Process Using Finite Element Method

2018 ◽  
Vol 165 (14) ◽  
pp. E773-E783 ◽  
Author(s):  
Vyom Sharma ◽  
Ishan Srivastava ◽  
Aakash Tyagi ◽  
V. K. Jain ◽  
J. Ramkumar
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Experimental Investigations ◽  
Electrochemical Turning ◽  
Element Method

Research on the Process of Numerical Control Electrochemical Turning Based on Finite Element Method

2013 ◽  
Vol 764 ◽  
pp. 95-101 ◽  
Author(s):  
Xiu Qing Fu ◽  
Jie Yu Xian ◽  
Min Kang ◽  
Mao Hua Xiao
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Three Dimensional ◽  
Current Density Distribution ◽  
Simulation Method ◽  
Numerical Control ◽  
Percentage Error ◽  
Analysis Model ◽  
Electrochemical Turning ◽  
Element Method

The processing simulation method of numerical control electrochemical turning (NC-ECT) was presented based on the finite element method (FEM) in this paper. The three-dimensional analysis model of the electric field built in ANSYS software was solved. The current density distribution and the theoretical values of material removed depth per revolution (MRDPR) in different time on the anode were obtained. The experiments were carried out on the NC-ECT lathe, and the measured values of MRDPR were measured, which were compared with the theoretical values. It is indicated that the maximum percentage error between the theoretical values and the measured values is smaller and the simulation method meets the accuracy of the engineering calculations.

scholarly journals MATERIAL MODELS AT RESEARCH OF WAVE DEFORMATION STRENGTHENING THROUGH FINITE ELEMENT METHOD

2021 ◽  
Vol 2021 (1) ◽  
pp. 28-33
Author(s):  
Andrey Kirichek ◽  
Sergey Barinov ◽  
Sergey Silantiev ◽  
Aleksandr Yashin ◽  
Aleksey Zaycev
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Material Model ◽  
Experimental Investigations ◽  
Material Models ◽  
Wave Deformation ◽  
Element Simulation ◽  
Model Programs ◽  
First Time ◽  
Element Method

The problem of necessity in the development of loading environment models (materials processed) which has great importance at the finite element simulation of basic processes (technologies) is considered. As a rule, material model programs embedded into CAE cannot be used completely in the computations because of their limited set of physical-mechanical properties, most often insufficient for the adequate simulation of the process under investigation. By the example of the technology of wave deformation strengthening taking into account its peculiarities in the paper for the first time there are developed material models: steel45, BrAZh9-4; VT1-0; B-95 and the estimation of their adequacy is carried out. The creation of each model of material is a unique process and implies not only the pattern completion with data from reference books, but also with data obtained as a result of the fulfillment of corresponding experimental investigations of properties peculiar to material under working. As a result there are developed adequate models of materials having an admissible error (not exceeding 7.4%) for micro-hardness and depth of surface layer strengthening that allows recommending their use at the investigation of wave deformation strengthening through a finite element method.

scholarly journals Modelling of the Guillotine Cutting Process by Means of a Symmetrical Blade with the Defined Geometry

Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5404
Author(s):  
Jarosław Kaczmarczyk
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Cutting Tool ◽  
Cutting Process ◽  
Experimental Investigations ◽  
The Finite Element Method ◽  
Complex State ◽  
Highly Nonlinear ◽  
Cutting Processes ◽  
Element Method

This paper modelled the cutting process of a bundle consisted of ultra-thin cold-rolled steel sheets using a guillotine. The geometry of a cutting tool with given dimensions was assumed. A bundle of sheets being cut was modelled as deformable, the cutting tool was rigid, and the finite element method along with computer system LS-DYNA was employed. Numerical simulations of the complex state of stress and of the corresponding complex state of strain were carried out. Cutting processes belong to fast changing physical phenomena, and therefore, highly nonlinear dynamical algorithms were applied in order to solve this particular problem. Experimental investigations were also conducted by means of the scanning electron microscopy. It was found that the fracture region consisted of two distinct zones: brittle and ductile separated from each other by the interfacial transition. Morphological features of the brittle, ductile, and the transition regions were identified. The ductile and brittle zones were separated at the depth of ca. 1/5 thickness of the cut steel sheet. Finally, the numerical results obtained by usage of the finite element method as well as experimental ones in the form of microscopic images were compared, showing quite good agreement.

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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