Isothermal precision forging of aluminum alloy ring seats with different preforms using FEM and experimental investigation

Zhang, Yanqiu; Jiang, Shuyong; Zhao, Yuyuan; Shan, Debin

doi:10.1007/s00170-014-5784-9

Cited by 23 publications

(4 citation statements)

References 25 publications

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“…Monte Carlo method was used for estimation of tolerance range that can be applied to workpiece dimensions. Zhang et al [ 108 ] observed the effect of varying preform height for precision forging of aluminum ring seats. The perfect shape of the ring seat was obtained with increase in preform height, resulting in defect free forging, with improved mechanical properties.…”

Section: Effect Of Input Parameters On the Surface Characteristics Of...mentioning

confidence: 99%

A Systematic Review of Factors Affecting the Process Parameters and Various Measurement Techniques in Forging Processes

Sharma

Gupta

et al. 2023

steel research int.

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Forging is a primary manufacturing process used in several manufacturing industries. Aircraft and automobile industries are manufacturing products with high‐dimensional accuracy and quality that are highly precise or near the required shape. Customers require products that are free of cracks and fulfill their functional requirements. This leads to the advancement of the forging process due to its ability to form complicated and intricate shapes. Herein, a detailed review of the aspects of forging is given in which the optimization of factors like preform design, forging conditions, workpiece dimensions, die design, lubricant properties, and thermal treatment parameters are discussed, enhancing the tool life and forging quality of the product. The selection of die‐forging tool material and methods for enhancing the surface quality of forged products are also reviewed. The article also presents methods for measurement of forging quality, tool life, machine effectiveness, forging image acquisition, and forging parameters, which can significantly reduce the risk of error at every step of the forging process. This review serves as a reference for researchers to increase production rate, enhance the effectiveness of measurement system, and improve the quality of forged products with technological advancement.

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Section: Effect Of Input Parameters On the Surface Characteristics Of...mentioning

confidence: 99%

A Systematic Review of Factors Affecting the Process Parameters and Various Measurement Techniques in Forging Processes

Sharma

Gupta

et al. 2023

steel research int.

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“…Zhang et al [23] analyze the formations of folding and underfilling defects in the isothermal precision forging of aluminum alloy ring seat using the evolution of material flow pattern from FE simulation. Similarly, Wang et al [24] study the formation and avoidance mechanism of flow-induced folding defect in the mesoforming of a nonaxisymmetrical part through the analysis on velocity field during forming process based on FE simulation.…”

Section: Defect Formation Mechanismmentioning

confidence: 99%

Forming defects control in transitional region during isothermal local loading of Ti-alloy rib-web component

Gao

Yang

Fan

et al. 2014

Int J Adv Manuf Technol

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The forming quality of transitional region plays a key role in the performance of titanium alloy large-scale ribweb component under isothermal local loading forming. In this work, a local eigen model of transitional region in the local loading forming of large-scale rib-web component is extracted so as to catch the detail-forming characteristics of transitional region with low computation time in simulation and experiment cost. Then, based on the local eigen model, the mechanism of forming defects in transitional region and their dependence on processing parameters are studied by the combination of physical experiment and verified finite element (FE) simulation. It is found that the second loading step can be divided into two forming stages according to the material flow pattern: (1) the transverse flow stage and (2) the stable forming stage. In the transverse flow stage, there exists long-range transverse flow of web material and excessive transverse flow would lead to the formation of folding and cavum defects. Moreover, the severities of defects are well correlated with the quantity of material transferred into the first-loading region in this stage. For a certain reduction amount, decreasing spacer block thickness and increasing friction both can decrease the quantity of transferred material and then suppress the development of folding and cavum defects, while the deformation temperature and loading speed have little effect on the quantity of transferred material and defects. In the end, an effective way is put forward to suppress and prevent the defects in transitional region during the local loading forming of titanium alloy large-scale rib-web component.

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“…Dynamic recrystallization has been studied extensively, including recrystallization in hot rolling [1,2], hot extrusion [3,4], and hot forging [5,6]. Generally, the finer grain structure of aluminum alloy brings better mechanical properties for enhancing grain boundary strengthening [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Effects of Initial Grain Size of Al-Zn-Mg-Cu Alloy on the Recrystallization Behavior and Recrystallization Mechanism in Isothermal Compression

Zhao

Deng

et al. 2019

Metals

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Fine-grained (average gain size 3.8 μm) and coarse-grained (average gain size 24.9 μm) Al-Zn-Mg-Cu alloys were subjected to isothermal compression at 10−3 s−1 and temperature ranges from 300 °C to 450 °C. The grain structures after isothermal compression were observed by electron backscatter diffraction (EBSD). The results show that the continuous dynamic recrystallization (CDRX) mechanism dominated to form sub-grains in grain interiors during isothermal compression of coarse-grained materials, and sub-grains were gradually developed in grain interiors as the effective strain increased. Discontinuous dynamic recrystallization (DDRX) was the main recrystallization mechanism during isothermal compression of fine-grained materials, in which finer recrystallized grains were formed at grain boundaries. The temperature of isothermal compression had little influence on the recrystallization when the growth of recrystallized grains was slight, and sub-grains were hardly developed in fine-grain interiors.

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Isothermal precision forging of aluminum alloy ring seats with different preforms using FEM and experimental investigation

Cited by 23 publications

References 25 publications

A Systematic Review of Factors Affecting the Process Parameters and Various Measurement Techniques in Forging Processes

A Systematic Review of Factors Affecting the Process Parameters and Various Measurement Techniques in Forging Processes

Forming defects control in transitional region during isothermal local loading of Ti-alloy rib-web component

Effects of Initial Grain Size of Al-Zn-Mg-Cu Alloy on the Recrystallization Behavior and Recrystallization Mechanism in Isothermal Compression

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