The Experts below are selected from a list of 11649 Experts worldwide ranked by ideXlab platform
M R Movahhedy - One of the best experts on this subject based on the ideXlab platform.
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die design for the radial Forging Process using 3d fem
Journal of Materials Processing Technology, 2007Co-Authors: A Ghaei, M R MovahhedyAbstract:Abstract Radial Forging is an open Forging Process used for reducing the diameters of shafts, tubes, stepped shafts and axels, as well as for creating internal profiles for tubes such as rifling the gun barrels. Most of the previous studies conducted on the radial Forging Process have used axisymmetric models to understand the effects of die shape on deformation. In order to design a hammer die for radial Forging Process, a full 3D model of the Process is needed to consider the effects of die shape in the cross-section area on deformation. Therefore, the commercial finite element code, ABAQUS, was used in this study to model the radial Forging Process and the effects of die shape in the cross-section area on deformation were considered. Additionally, in order to investigate the accuracy of the axisymmetric model of the radial Forging, the results of 3D FEM model were compared with those obtained by axisymmetric FEM model.
P. Zambrano-robledo - One of the best experts on this subject based on the ideXlab platform.
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Microstructure Modeling of a Ni-Fe-Based Superalloy During the Rotary Forging Process
Journal of Materials Engineering and Performance, 2016Co-Authors: A. Loyda, G. M. Hernández-muñoz, L. A. Reyes, P. Zambrano-robledoAbstract:The microstructure evolution of Ni-Fe superalloys has a great influence on the mechanical behavior during service conditions. The rotary Forging Process offers an alternative to conventional bulk forming Processes where the parts can be rotary forged with a fraction of the force commonly needed by conventional Forging techniques. In this investigation, a numerical modeling of microstructure evolution for design and optimization of the hot Forging operations has been used to manufacture a heat-resistant nickel-based superalloy. An Avrami model was implemented into finite element commercial platform DEFORM 3D to evaluate the average grain size and recrystallization during the rotary Forging Process. The simulations were carried out considering three initial temperatures, 980, 1000, and 1050 °C, to obtain the microstructure behavior after rotary Forging. The final average grain size of one case was validated by comparing with results of previous experimental work of disk Forging operation. This investigation was aimed to explore the influence of the rotary Forging Process on microstructure evolution in order to obtain a homogenous and refined grain size in the final component.
A Ghaei - One of the best experts on this subject based on the ideXlab platform.
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die design for the radial Forging Process using 3d fem
Journal of Materials Processing Technology, 2007Co-Authors: A Ghaei, M R MovahhedyAbstract:Abstract Radial Forging is an open Forging Process used for reducing the diameters of shafts, tubes, stepped shafts and axels, as well as for creating internal profiles for tubes such as rifling the gun barrels. Most of the previous studies conducted on the radial Forging Process have used axisymmetric models to understand the effects of die shape on deformation. In order to design a hammer die for radial Forging Process, a full 3D model of the Process is needed to consider the effects of die shape in the cross-section area on deformation. Therefore, the commercial finite element code, ABAQUS, was used in this study to model the radial Forging Process and the effects of die shape in the cross-section area on deformation were considered. Additionally, in order to investigate the accuracy of the axisymmetric model of the radial Forging, the results of 3D FEM model were compared with those obtained by axisymmetric FEM model.
A. Loyda - One of the best experts on this subject based on the ideXlab platform.
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Microstructure Modeling of a Ni-Fe-Based Superalloy During the Rotary Forging Process
Journal of Materials Engineering and Performance, 2016Co-Authors: A. Loyda, G. M. Hernández-muñoz, L. A. Reyes, P. Zambrano-robledoAbstract:The microstructure evolution of Ni-Fe superalloys has a great influence on the mechanical behavior during service conditions. The rotary Forging Process offers an alternative to conventional bulk forming Processes where the parts can be rotary forged with a fraction of the force commonly needed by conventional Forging techniques. In this investigation, a numerical modeling of microstructure evolution for design and optimization of the hot Forging operations has been used to manufacture a heat-resistant nickel-based superalloy. An Avrami model was implemented into finite element commercial platform DEFORM 3D to evaluate the average grain size and recrystallization during the rotary Forging Process. The simulations were carried out considering three initial temperatures, 980, 1000, and 1050 °C, to obtain the microstructure behavior after rotary Forging. The final average grain size of one case was validated by comparing with results of previous experimental work of disk Forging operation. This investigation was aimed to explore the influence of the rotary Forging Process on microstructure evolution in order to obtain a homogenous and refined grain size in the final component.
Tang Xuan - One of the best experts on this subject based on the ideXlab platform.
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Forming Load and Metal Flow of Rotary Forging Process for Spiral Bevel Gear
Advances in systems science and applications, 2011Co-Authors: Wang Huajun, Li Yamin, Zhang Yang, Huang Jing, Tang XuanAbstract:Rotary Forging can overcome the shortcoming of cutting machining and reduces the forming load of the precision Forging Process. In this paper, the rotary Forging Process of spiral bevel gear was studied using finite element method, deformation and L-t (load–time) curve at every stage was analyzed. Thereby tooth filling phase during rotary Forging of spiral bevel gear was obtained. At the same time, the formation of the inside, mid-point and outside at the addendum and dedendum of the convex and concave surface on the blank was also analyzed. As a result, the reason that the outside is difficult to fill was explained. Via theoretical Calculation and the lead specimen test, the rotary Forging Process of spiral bevel gear was verified which demonstrated the validity of the rotary Forging Process of spiral bevel gear.