...Riccardo Pelaccia; Marco Negozio; Paolo E. Santangelo Nitrogen cooling has become a popular solution to reduce heat flux between the die and the profile in the hot extrusion process. However, designing effective cooling channels for complex-shape profiles poses challenges, especially when the phase...

.... extrusion forging wire drawing etc.) design for manufacturing modeling and simulation Japan Society for the Promotion of Science 10.13039/501100001691 23H01324 In the manufacturing industry, the importance of product quality and efficient production are increasingly being...

... attempted to achieve this on commercially pure aluminum by utilizing the friction-assisted lateral extrusion process (FALEP), which has the capability of producing sheets from bulk or powder metal in a single step, by applying large shear strain. The texture, microstructure, and mechanical properties...

... 10 2022 21 10 2022 02 12 2022 strain inhomogeneity elongation rod flat rolling three-dimensional deformation bulk deformation processes (e.g. extrusion forging wire drawing) design for manufacturing process engineering National Research Foundation of Korea...

... in the formed product. Two process routes are proposed: (1) chip formation by free-machining (FM), with a post-machining, light drawing reduction (<20%) to achieve desired finish and (2) constrained chip formation by large strain extrusion machining (LSEM). Using commercially pure aluminum conductor alloys...

...Gracious Ngaile; Daniel Santiago Rodrigues Forging and extrusion tools are often subjected to a combination of cyclic thermo-mechanical, chemical, and tribological loads. Strategies for minimizing these loads are critical for preventing premature tool failure and increasing productivity. A die...

... is linearly related to normal force. Coulomb friction also usually infers that friction is also independent of area of contact and that steady-state friction force does not depend on sliding velocity as long as the sliding velocity exists. These don’t hold in metal forming. For example, in extrusion, the die...

...Ilhan Yu; Samantha Grindrod; Roland Chen Tubular structures of the hydrogel are used in a variety of applications such as delivering nutrient supplies for 3D cell culturing. The wall thickness of the tube determines the delivery rate. In this study, we used the coaxial extrusion process...

... formation in constrained cutting can occur in two different deformation modes, i.e., simple shear and complex extrusion, depending on the constrained level. Constrained cutting in the simple shear regime can reduce strain, reduce cutting force and energy, and improve surface finish compared to free cutting...

...Luigi De Pari, Jr.; Wojciech Z. Misiolek In order to simulate copper extrusion more closely to industrial practices and to analyze the roots of the complicated issue of tube eccentricity, the material properties and the extrusion conditions were simulated using the finite element modeling ( fem...

... bending computer integrated manufacturing drawing (mechanical) extrusion forming processes lightweight structures product development prototypes computer-integrated manufacturing design for manufacturing expert systems in manufacturing For a manufacturing company to survive...

... severe deformation should have more pronounced benefits from EAF. In this research, Equal channel angular extrusion (ECAE) was used to induce severe plastic deformation into the material. Subsequent EAF compression experiments with the ECAE specimens and as-received material with comparable grain sizes...

...Nooman Ben Khalifa; A. Erman Tekkaya A new innovative direct extrusion process, helical profile extrusion (HPE) is presented, which increases the flexibility of aluminum profile manufacturing processes. The application fields of such profiles can be seen in screw rotors for compressors and pumps...

...H. Haghighat; P. Amjadian In this paper, plane strain extrusion through arbitrarily curved dies is investigated analytically, numerically, and experimentally. Two kinematically admissible velocity fields based on assuming proportional angles, angular velocity field, and proportional distances from...

...Xiyue Zhao; Robert G. Landers; Ming C. Leu Freeze-form extrusion fabrication is an additive manufacturing process that extrudes high solids loading aqueous ceramic pastes in a layer-by-layer fashion below the paste freezing temperature for component fabrication. Due to effects, such as the air...

... plastic deformation (SPD) processes is called the equal channel angular extrusion (ECAE). Although a large amount of studies, which deal with experimental analysis of processed parts exist, few studies dealing with the force required to perform the process have been developed. In this study, an analytical...

...S. S. Akhtar; A. F. M. Arif; B. S. Yilbas The service life of tooling plays an important part in the economics of the extrusion process. A number of causes are considered responsible for initiating damage to the dies before its designated life is reached. Apart from other factors such as die design...

...B. Aour; F. Zaïri; M. Naït-Abdelaziz; J. M. Gloaguen; J. M. Lefebvre Equal channel angular extrusion (ECAE) is a relatively novel forming process to modify microstructure via severe plastic deformation without modification of the sample cross section. In this study, an optimized design of die...

...Jyhwen Wang; Ritesh Shah; Yu-Hsuan Huang; Der-Form Chang Deformable coated materials hold promises for numerous new technologies. In this research, extrusion of polymer coated metal rods was investigated. Analytical models based on upper bound method were developed to evaluate axisymmetric conical...

... that the friction conditions obtained from comparisons of experimental results and numerical models show a size effect related to the overall dimensions of the extruded part, assuming material response is homogeneous. Another interesting observation was made when extrusion experiments were performed to produce...