Analysis of Factor Effects in Process of Vertical Centrifugal Casting

Jurković, Klaudia; Cajner, Hrvoje; Mrvar, Primož; Bauer, Branko

doi:10.1080/10426914.2023.2236239

Cited by 5 publications

(3 citation statements)

References 29 publications

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“…Therefore, the higher the pouring temperature, the longer the cooling time of the wheel hub. It could manifest a reduction in the cooling rate [27]. It was also deduced that the pouring temperature and It exhibited some common characteristics: the solidification time tended to decrease from the center to the edge, which was aligned with the temperature change trend depicted in Figure 5.…”

Section: Numerical Simulation Results and Analysissupporting

confidence: 62%

“…Therefore, the higher the pouring temperature, the longer the cooling time of the wheel hub. It could manifest a reduction in the cooling rate [ 27 ]. It was also deduced that the pouring temperature and mold preheating temperature had a significant effect on the temperature field: the temperature of the hot region and the area of the high-temperature region had an effect on the cooling rate of the liquid metal [ 28 ].…”

Section: Resultsmentioning

confidence: 99%

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Numerical Simulation on Solidification during Vertical Centrifugal Casting Process for TC4 Alloy Wheel Hub with Enhanced Mechanical Properties

Yang,

Wang,

et al. 2023

Materials

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The Ti-6Al-4V (TC4) alloy wheel hub has exhibited some defects that affect the properties during the vertical centrifugal casting process. Therefore, the analysis of the solidification process would contribute to solving the above-mentioned problems. In this study, an orthogonal experimental design was employed to optimize the process parameters (rotational speed, mold preheating temperature, and pouring temperature) of the vertical centrifugal casting method. The effects of process parameters on the velocity field, temperature field, and total shrinkage porosity during the solidification process were explored, and the microstructure and mechanical properties of the wheel hub prepared by the vertical centrifugal casting method were also investigated. The results showed that the rotational speed mainly induced the change of the velocity field. The pouring temperature and mold preheating temperature affected the temperature field and solidification time. Based on the analysis of the orthogonal experiment, the optimal parameters were confirmed as a rotational speed of 225 rpm, mold preheating temperature of 400 °C, and pouring temperature of 1750 °C, respectively. The simulation results of total shrinkage porosity were in agreement with the experiment results. The wheel hub was composed of nonuniform α and β phases. The lath α phase precipitated from larger β grains with different orientations. Compared with the other samples at different locations, the α phase in the PM sample (middle of the TC4 wheel hub) displayed high peak intensity and uniformly distributed β phase along the radial direction of the wheel hub. Moreover, the PM sample revealed a higher tensile strength of 820 MPa and similar Vickers hardness of 318 HV compared with the other samples at different locations, which were higher than those of rolling and extrusion molding. This experiment design would provide a good reference for the vertical centrifugal casting of the TC4 alloy.

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Section: Numerical Simulation Results and Analysissupporting

confidence: 62%

“…Therefore, the higher the pouring temperature, the longer the cooling time of the wheel hub. It could manifest a reduction in the cooling rate [ 27 ]. It was also deduced that the pouring temperature and mold preheating temperature had a significant effect on the temperature field: the temperature of the hot region and the area of the high-temperature region had an effect on the cooling rate of the liquid metal [ 28 ].…”

Section: Resultsmentioning

confidence: 99%

Numerical Simulation on Solidification during Vertical Centrifugal Casting Process for TC4 Alloy Wheel Hub with Enhanced Mechanical Properties

Yang,

Wang,

et al. 2023

Materials

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“…The method essence consists of the fact that the mould filling and the crystallisation of the casting takes place under the action of centrifugal forces [2,[14][15][16][17][18]. Depending on the location in space of the axis of rotation, centrifugal casting is carried out with a horizontal, vertical or inclined axis of rotation [19]. The method can be applied to both metals and non-metals [20].…”

Section: Introductionmentioning

confidence: 99%

Influence of an Ageing Heat Treatment on the Mechanical Characteristics of Iron-Aluminium Bronzes with β-Transformation Obtained via Centrifugal Casting: Modelling and Optimisation

Maximov,

Duncheva,

Anchev

et al. 2023

Metals

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Aluminium bronzes possess a unique combination of high strength and wear and corrosion resistance in aggressive environments; thus, these alloys find wide application in marine, shipbuilding, aviation, railway, offshore platform applications and other fields. Iron-aluminium bronzes (IABs) are the cheapest and most widely used. When the aluminium content is above 9.4 wt%, IAB is biphasic (i.e., it undergoes β-transformation) and can be subjected to all heat-treatment types, depending on the desired operating behaviour of the bronze component. This article presents correlations (mathematical models) between the primary mechanical characteristics (yield limit, tensile strength, elongation, hardness and impact toughness) and the ageing temperature and time of quench at 920 °C in water of Cu-11Al-6Fe bronze, obtained using the centrifugal casting method. The microstructure evolution was evaluated depending on the ageing temperature and time changes. Overall, the research was conducted in three successive inter-related stages: a one-factor-at-a-time study, planned experiment, and optimisations. Four optimisation tasks, which have the greatest importance for practice, were formulated and solved. The defined multiobjective optimisation tasks were solved by searching for the Pareto-optimal solution approach. The decisions were made through a nondominated sorting genetic algorithm (NSGA-II) using QstatLab. The optimisation results were verified experimentally. Additional samples were made for this purpose, quenched at 920 °C in water and subjected to subsequent ageing with the optimal values of the governing factors (ageing temperature and time) for the corresponding optimisation task. The comparison of the results for the mechanical characteristics with the theoretical optimisation results presents a good agreement.

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Fabrication of Centrifugally Cast TiB2-Al7075 Functionally Graded Material: Investigation on Microstructure and Mechanical Properties

Mallick,

Sahu,

Gangi Setti

2024

J. Inst. Eng. India Ser. D

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Analysis of Factor Effects in Process of Vertical Centrifugal Casting

Cited by 5 publications

References 29 publications

Numerical Simulation on Solidification during Vertical Centrifugal Casting Process for TC4 Alloy Wheel Hub with Enhanced Mechanical Properties

Numerical Simulation on Solidification during Vertical Centrifugal Casting Process for TC4 Alloy Wheel Hub with Enhanced Mechanical Properties

Influence of an Ageing Heat Treatment on the Mechanical Characteristics of Iron-Aluminium Bronzes with β-Transformation Obtained via Centrifugal Casting: Modelling and Optimisation

Fabrication of Centrifugally Cast TiB2-Al7075 Functionally Graded Material: Investigation on Microstructure and Mechanical Properties

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