Effect of Pouring Temperature on Microstructure Characteristics and Properties of Semi-Solid Near-Eutectic Al–Si Alloy

Xie, Lingzhi; Li, Yongkun; Zhou, Rongfeng; Li, Zhaoqiang; Wang, Qiansi; Zhang, Lingzhi; Ji, Qiang; Xu, Bin

doi:10.1007/s12540-023-01591-8

Cited by 5 publications

(3 citation statements)

References 35 publications

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“…Semi-solid metal forming (SSMF) is a novel metal-forming method proposed by Prof. Flemings and his team at MIT [61], which was further applied and investigated by researchers [62][63][64]. During the SSMF process, the semi-solid materials are first prepared with grains of significantly small sizes and spherical shapes.…”

Section: New Technology Of Semi-solid Closed Extrusion Forming For Sc...mentioning

confidence: 99%

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Research Progress on the Manufacturing of Screw-Shaped Parts in Screw Compressors

Wang,

Xiong,

Feng

et al. 2024

Applied Sciences

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Screw compressors are highly researched and developed prospects in industry because of their long service life, high transmission efficiency, low footprint and low vibration. As the key core part of the screw compressor, the screw is a typical, long-shaft, complex profile part. Its processing method, manufacturing accuracy and quality have an extremely important impact on the performance of the whole screw compressor. In this work, the research progress on the manufacturing of screw-shaped parts in screw compressors is summarised from the aspects of the cutting process, solid plastic forming, casting and additive manufacturing. The merits and demerits of these manufacturing processes are provided and discussed, which is conducive to the development of the high-efficiency, precise and high-performance forming process of screw-shaped parts. Additionally, a novel forming process is proposed to solve the problems of serious material waste and low production efficiency for the screw-shaped parts. In the proposed process, the semi-solid spherical grain is firstly prepared by radial forging and the isothermal treatment of long-shaft raw materials. The large strain energy can be stored in the bar by the radial forging of long-shaft raw materials, which is used to induce the generation of semi-solid spherical grains with the assistance of the isothermal procedure. After that, the screw is fabricated by the high-efficiency semi-solid closed extrusion process.

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Section: New Technology Of Semi-solid Closed Extrusion Forming For Sc...mentioning

confidence: 99%

“…SSMF has the advantages of high flowability in casting combined with the excellent mechanical properties of components processed by solid plastic forming. Therefore, it can realise the near-net shape forming of complex parts [64,[67][68][69].…”

Section: New Technology Of Semi-solid Closed Extrusion Forming For Sc...mentioning

confidence: 99%

Research Progress on the Manufacturing of Screw-Shaped Parts in Screw Compressors

Wang,

Xiong,

Feng

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…In the SSFM process, semi-solid materials with fine and spherical grains are first produced. Subsequently, components with refined microstructures and superior performance can be fabricated through techniques such as extrusion, forging, rolling, or die casting [32,33]. The SSFM process can also operate through stages, including the first cooling or solidifying the semisolid blank into a solid blank and then reheating and forming the solid blank with suitable dimensions according to the production demands [34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Semi-Solid Forging Process of Aluminum Alloy Connecting Rods for the Hydrogen Internal Combustion Engine

Wang,

Jiang,

Zhang

et al. 2024

Applied Sciences

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As an important piece of equipment for hydrogen energy application, the hydrogen internal combustion engine is helpful for the realization of zero carbon emissions, where the aluminum connecting rod is one of the key core components. A semi-solid forging forming process for the 7075 aluminum alloy connecting rod is proposed in this work. The influence of process parameters, such as the forging ratio, sustaining temperature, and duration time, on the microstructures of the semi-solid blank is experimentally investigated. The macroscopic morphology, metallographic structure, and physical properties of the connecting-rod parts are analyzed. Reasonable process parameters for preparing the semi-solid blank are obtained from the experimental results. Under the reasonable parameters, the average grain size is 41.48~42.57 μm, and the average shape factor is 0.80~0.81. The yield strength and tensile strength improvement ratio of the connecting rod produced by the proposed process are 47.07% and 20.89%, respectively.

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Effect of Superheat on Hot Tearing Susceptibility in Re-melted 6061 Aluminum Alloy

Akhyar,

Zulfadhli,

Ali

et al. 2024

Inter Metalcast

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Effect of Pouring Temperature on Microstructure Characteristics and Properties of Semi-Solid Near-Eutectic Al–Si Alloy

Cited by 5 publications

References 35 publications

Research Progress on the Manufacturing of Screw-Shaped Parts in Screw Compressors

Research Progress on the Manufacturing of Screw-Shaped Parts in Screw Compressors

Semi-Solid Forging Process of Aluminum Alloy Connecting Rods for the Hydrogen Internal Combustion Engine

Effect of Superheat on Hot Tearing Susceptibility in Re-melted 6061 Aluminum Alloy

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