Results 131 to 140 of about 3,474,703 (163)
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Materials Science Forum, 2016
The effects of final forging temperatures on deformability and structure evolution of high purity aluminum during multi-directional forging process were investigated. The results showed that increasing the initial forging temperature is beneficial for controlling the sample shape in the initial forging passes.
Qing Feng Zhu +5 more
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The effects of final forging temperatures on deformability and structure evolution of high purity aluminum during multi-directional forging process were investigated. The results showed that increasing the initial forging temperature is beneficial for controlling the sample shape in the initial forging passes.
Qing Feng Zhu +5 more
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Mechanical Properties of Multi-Directional Forged Al-7Si-4Zn-3Cu Alloy
Defect and Diffusion Forum, 2018In this study, Al-7Si-4Zn-3Cu alloy was processed by multi-directional forging (MDF) at 3, 6 and pass corresponding one, two and three cycle, respectively. The structural and mechanical properties of the alloys were investigated at as-cast, homogenised and MDF states.
Yasin Alemdağ +3 more
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Experimental study and finite element analysis on the frame of multi-directional forging press
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2016With the development of multi-directional forging technology, heavy multi-directional forging press has been widely used in manufacturing industry. However, there is a contradiction between the independence of structure and the independence of mechanics, which becomes a bottleneck and limits the development of heavy multi-directional forging press ...
Wenjie Wang +3 more
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Superplasticity of multi-directional impact forged Mg–Gd–Y-Zr alloy
Journal of Alloys and Compounds, 2016Abstract A novel multi-directional impact forging (MDIF) process was successfully applied to a Mg–Gd–Y-Zr alloy and the superplasticity of the MDIFed alloy was investigated. It was shown that the initial microstructure after MDIF had a unique characteristic of coarse grains decorated by profuse tension twins. Tensile tests at various temperatures and
J.L. Li, D. Wu, Q.B. Yang, R.S. Chen
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Superplasticity of fine-grained Mg–xGd alloys processed by multi-directional forging
Materials Science and Engineering: A, 2019Abstract Microstructural development and superplastic behavior of Mg–xGd (x = 1, 2, 3 wt%) alloys were investigated after the multi-directional forging (MDF) process. Microstructural observations of the extruded materials revealed non-homogeneous structures with bimodal grain sizes, consisting of coarse elongated grains resulting from deformation ...
N. Azizi, R. Mahmudi
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Materials Science and Engineering: A, 2008
Abstract Annealing processes in copper, processed by multi-directional forging to strains of ɛ = 0.4–6.0 at 300 K, were studied at 503–573 K. Strain-induced ultrafine-grained copper shows mainly grain coarsening behaviour, which is categorized in three stages, i.e.
A. Takayama, X. Yang, H. Miura, T. Sakai
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Abstract Annealing processes in copper, processed by multi-directional forging to strains of ɛ = 0.4–6.0 at 300 K, were studied at 503–573 K. Strain-induced ultrafine-grained copper shows mainly grain coarsening behaviour, which is categorized in three stages, i.e.
A. Takayama, X. Yang, H. Miura, T. Sakai
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Nano-grain evolution in austenitic stainless steel during multi-directional forging
Materials Science and Engineering: A, 2011Abstract Nano-grain evolution in an austenitic stainless steel (SUS 316) during multidirectional forging (MDF) was investigated at temperatures of 77 K and 300 K. The flow stress during MDF and the room-temperature hardness increased significantly with increasing cumulative strain.
Y. Nakao, H. Miura
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International Journal of Material Forming, 2016
In each industrial process for the production of crankshafts a low energy demand and a fast processing time are required. Crankshafts have a very complex geometry and are forged with a high percentage of flash compared to other forging parts. Recent research showed the feasibility of a flashless forging of crankshafts.
Bernd-Arno Behrens +2 more
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In each industrial process for the production of crankshafts a low energy demand and a fast processing time are required. Crankshafts have a very complex geometry and are forged with a high percentage of flash compared to other forging parts. Recent research showed the feasibility of a flashless forging of crankshafts.
Bernd-Arno Behrens +2 more
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Production Engineering, 2017
To forge a flashless crankshaft within few steps and with low energy consumption innovative forging processes are necessary, such as cross wedge rolling and multi-directional forging. The direct combination of the two forming processes normally leads to flash at the bottom of the crankweb preform after the multi-directional forging.
Neelam Rasche +3 more
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To forge a flashless crankshaft within few steps and with low energy consumption innovative forging processes are necessary, such as cross wedge rolling and multi-directional forging. The direct combination of the two forming processes normally leads to flash at the bottom of the crankweb preform after the multi-directional forging.
Neelam Rasche +3 more
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Improved corrosion resistant and strength of a magnesium alloy using multi-directional forging (MDF)
The International Journal of Advanced Manufacturing Technology, 2019Extruded Mg alloy (ZAXM4211) was subjected to multi-directional forging (MDF) at different temperatures from 180 to 300 °C. Microstructure was analyzed using optical microscope (OM), scanning electron microscope (SEM), electron backscattered diffraction (EBSD), and X-ray diffraction (XRD) studies.
Ahmad Bahmani +2 more
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