Current State of Semi-Solid Net-Shape Die Casting

Kapranos, P.

doi:10.3390/met9121301

Cited by 30 publications

(17 citation statements)

References 25 publications

(56 reference statements)

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“…Moreover, the quality of semi-solid processed components is much better than that of cast components and close to the quality of plastic formed components. Therefore, semi-solid processing technology has been used to produce high-quality castings without defects or improve the quality of castings in the fields of automobile, motorcycle, bicycle and telecommunication equipment [5][6][7].…”

Section: Reviewmentioning

confidence: 99%

Application of Aluminum Alloy Semi-Solid Processing Technology in Automobile: A Review

Liu²,

Zhu³

2023

IJAMM

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Review Application of Aluminum Alloy Semi-Solid Processing Technology in Automobile: A Review Hongxing Lu 1, * , Zhengbai Liu 2, and Qiang Zhu 1 1 Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, China 2 School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen 518055, China * Correspondence: luhx@sustech.edu.cn Received: 15 January 2023 Accepted: 23 February 2023 Published: 17 March 2023 Abstract: Semi-solid processing technology is a new forming technology for aluminum alloy components, which has advantages in producing high-quality components with complex shapes. Several methods of semi-solid metal preparing and forming have been developed in the past 50 years. Some methods have been applied to provide high-quality components or improve castings’ quality in the field of automobile. This paper reviews the development and application of semi-solid processing technology and discusses about its future application prospects.

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Section: Reviewmentioning

confidence: 99%

Application of Aluminum Alloy Semi-Solid Processing Technology in Automobile: A Review

Liu²,

Zhu³

2023

IJAMM

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“…The main techniques include rheocasting [8], thixocasting, thixoforging, rheomoulding [9], thixomoulding [10], rheo-extrusion [11], thixo-extrusion [12], semi-solid joining [13], semi-solid twin roll casting [14], and rheo-mixing etc. Several comprehensive reviews have been published in 1991 [1], 1994 [2], 2002 [3], 2005 [4], 2018 [15,16], 2019 [17], 2020 [18], and 2021 [19]. This overview will mainly focus on the process development for component manufacturing, techniques for generating the non-dendritic microstructure and the associated mechanisms in the microstructural evolution of non-dendritic primary phase.…”

Section: Rheocastingmentioning

confidence: 99%

An Overview on the Process Development and the Formation of Non-Dendritic Microstructure in Semi-Solid Processing of Metallic Materials

Wang

Dong

2022

Crystals

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Semi-solid metal (SSM) processing has been an attractive method for manufacturing near-net-shape components with high integrity due to its distinct advantages over conventional forming technologies. SSM processing employs a mixture of solid phase and liquid metal slurries and/or non-dendritic feedstocks as starting materials for shaping. Since the original development from 1970s, a number of SSM processes have been developed for shaping components using the unique rheological and/or thixotropic properties of metal alloys in the semi-solid state, in which the globular solid particles of primary phase are dispersed into a liquid matrix. In this paper, the progress of the development of shaping technologies and the formation of non-dendritic microstructure in association with the scientific understanding of microstructural evolution of non-dendritic phase are reviewed, in which the emphasis includes the new development in rheomoulding, rheo-mixing, rheo/thixo-extrusion and semi-solid twin roll casting, on the top of traditional rheocasting, thixoforming and thixomoulding. The advanced microstructural control technologies and processing methods for different alloys are also compared. The mechanisms to form non-dendritic microstructures are summarised from the traditional understanding of mechanical shear/bending and dendrite multiplication to the spheroidal growth of primary phase under intensively forced convection. In particular, the formation of spheroidal multiple phases in eutectic alloys is summarised and discussed. The concluding remarks focus on the current challenges and developing trends of semi-solid processing.

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“…Near-net shaped products with excellent mechanical properties can be achieved by Semi-solid Metal Processing (SSMP) technique [1][2]. The ability of the SSMP to produce near-net-shaped products with good mechanical properties make it widely used in metal casting industries.…”

Section: Introductionmentioning

confidence: 99%

Effects of Direct Thermal Method Processing Parameters on Mechanical Properties of Semisolid A6061 Feedstock

Tajudin

Ahmad

Rashidi

2021

IJAME

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This paper highlights the effects of pouring temperature and holding time on the mechanical properties of aluminium 6061 semisolid feedstock billets. The semisolid metal feedstock billets were prepared by a direct thermal method (DTM), in which the molten metal was poured into a cylindrical copper mould with a different combination of pouring temperature and holding time before it was solidified in room temperature water. The results show that the sample with pouring temperature slightly above aluminium 6061 liquidus temperature has the lowest porosity, thereby the highest mechanical properties value. The sample with a pouring temperature of 660 °C and holding time of 60 s has the density, tensile strength and hardness properties of 2.701 g/cm3, 146.797 MPa, and 86.5 HV, respectively. Meanwhile, the sample at a pouring temperature of 640 °C and holding time of 20 s has density, tensile strength and hardness properties of 2.527 g/cm3, 65.39 MPa, and 71.79 HV, respectively. The density and fractography tests were conducted to confirm the existence of porosity within the samples. The results from these experimental works suggested that the mechanical properties of DTM semisolid feedstock billet merely depended on processing parameters, which influenced the porosity level within the feedstock billet, thus directly affected their mechanical properties.

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Current State of Semi-Solid Net-Shape Die Casting

Cited by 30 publications

References 25 publications

Application of Aluminum Alloy Semi-Solid Processing Technology in Automobile: A Review

Application of Aluminum Alloy Semi-Solid Processing Technology in Automobile: A Review

An Overview on the Process Development and the Formation of Non-Dendritic Microstructure in Semi-Solid Processing of Metallic Materials

Effects of Direct Thermal Method Processing Parameters on Mechanical Properties of Semisolid A6061 Feedstock

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