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Digital high-efficiency print forming method and device for multi-material casting molds

Zhongde SHAN, Zhi GUO, Dong DU, Feng LIU, Wenjiang LI

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2, Pages 328-337 doi: 10.1007/s11465-019-0574-6

Abstract: Sand mold 3D printing technology based on the principle of droplet ejection has undergone rapid developmentHowever, current sand mold 3D printing technology exhibits several problems, such as single-materialThis study proposes a novel high-efficiency print forming method and device for multi-material castingExperimental results demonstrate that the efficiency of sand mold fabrication can be increased by 200%The manufacture of multi-material casting molds is demonstrated on typical wheeled cast-iron parts.

Keywords： multi-material casting mold 3D printing efficient print forming method

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Robust topology optimization of multi-material lattice structures under material and load uncertainties

Yu-Chin CHAN, Kohei SHINTANI, Wei CHEN

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2, Pages 141-152 doi: 10.1007/s11465-019-0531-4

Abstract: Enabled by advancements in multi-material additive manufacturing, lightweight lattice structures consistingThis work proposes a density-based robust topology optimization method for meso- or macro-scale multi-materiallattice structures under any combination of material and load uncertainties.The method utilizes a new generalized material interpolation scheme for an arbitrary number of materialsExamples of a cantilever beam lattice structure under various material and load uncertainty cases exhibit

Keywords： robust topology optimization lattice structures multi-material material uncertainty load uncertainty

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Bulk Glassy Alloys: Historical Development and Current Research Review

Akihisa Inoue

Engineering 2015, Volume 1, Issue 2, Pages 185-191 doi: 10.15302/J-ENG-2015038

Abstract: focusing on the trigger point for the synthesis of the first bulk glassy alloys by the conventional moldcasting method.

Keywords： bulk glassy alloys mold casting metallic materials structural relaxation

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Industrialization of the Advanced Technology in Continuous Casting of Steel

Gan Yong

Strategic Study of CAE 2002, Volume 4, Issue 9, Pages 12-18

Abstract:

The characteristics of key technology in high-effective and thin-slab continuous casting of steelsuch as soft reduction, hydraulic-driven non-sinusoidal oscillation, and electromagnetic continuous castingThe progress direction of high-efficiency and high quality of conventional continuous casting is discussed, and the development trend of near-net-shape continuous casting and electromagnetic continuous casing

Keywords： continuous casting of steel high-effective continuous casting thin slab continuous casting soft reduction electromagnetic continuous casting industrialization

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Determining casting defects in near-net shape casting aluminum parts by computed tomography

Jiehua LI, Bernd OBERDORFER, Daniel HABE, Peter SCHUMACHER

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1, Pages 48-52 doi: 10.1007/s11465-018-0493-y

Abstract: casting defects and evaluate quality.-0.7Ni-0.2Zn alloy), die casting (A356, Al-7Si-0.3Mg), and semi-solid casting (A356, Al-7Si-0.3Mg), respectivelyUnlike die casting (second part), low-pressure die casting (first part) significantly reduced the formationsemi-solid casting could produce high-quality near-net shape casting aluminum parts.defects in near-net shape casting aluminum parts.

Keywords： near-net shape casting aluminum parts casting defects low pressure die casting die casting semi-solidcasting computed tomography

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Premature melt solidification during mold filling and its influence on the as-cast structure

M. WU, M. AHMADEIN, A. LUDWIG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1, Pages 53-65 doi: 10.1007/s11465-017-0437-y

Abstract:

Premature melt solidification is the solidification of a melt during mold filling.heterogeneous nucleation in the undercooled melt resulting from the first contact of the melt with the cold moldexperimental results is achieved by considering the effect of premature melt solidification during moldFinally, the influences of pouring parameters, namely, pouring temperature, initial mold temperature,

Keywords： premature solidification mold filling as-cast structure modeling

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Novel casting processes for single-crystal turbine blades of superalloys

Dexin MA

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1, Pages 3-16 doi: 10.1007/s11465-018-0475-0

Abstract:

This paper presents a brief review of the current casting techniques for single-crystal (SC) bladesA series of novel casting methods based on the Bridgman process were presented to illustrate the development

Keywords： superalloy investment casting Bridgman process directional solidification single crystal turbine blade

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Novel technologies for the lost foam casting process

Wenming JIANG, Zitian FAN

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1, Pages 37-47 doi: 10.1007/s11465-018-0473-2

Abstract:

Lost foam casting (LFC) is a green precision casting process categorized as a near net forming technologyand low pressure, vibration solidification, and pressure solidification conditions; expendable shell castingThe expendable shell casting technology could solve the pore, carburization, and inclusion defects of

Keywords： LFC under vacuum and low pressure vibration solidification pressure solidification expendable shell casting

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Hybrid forming mechanism of patternless casting and laser cladding

Zhongde SHAN, Fuzhen SUN, Yang LIU

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4, Pages 393-401 doi: 10.1007/s11465-019-0550-1

Abstract: The method combines digital patternless casting and high-power laser cladding.

Keywords： patternless casting laser cladding hybrid forming rapid tooling

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Numerical investigation of the influence of casting techniques on fiber orientation distribution in ECC

Chung Nguyen VAN; Hai TRAN THANH; Thuc Nhu NGUYEN; Jianchun LI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 11, Pages 1424-1435 doi: 10.1007/s11709-022-0870-9

Abstract: orientation of fibers, in this regard, is one of the major factors influencing the ductile behavior of this materialIn this study, fiber orientation distributions in ECC beams influenced by different casting techniquesare evaluated via numerical modeling of the casting process.Two casting directions and two casting positions of the funnel outlet with beam specimens are modeledThe movement of fiber particles is monitored during the casting simulation.

Keywords： ECC fiber orientation distribution casting direction casting position

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An energy consumption prediction approach of die casting machines driven by product parameters

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4, Pages 868-886 doi: 10.1007/s11465-021-0656-0

Abstract: Die casting machines, which are the core equipment of the machinery manufacturing industry, consume greatThe energy consumption prediction of die casting machines can support energy consumption quota, processNevertheless, due to the uncertainty and complexity of the energy consumption in die casting machinesTo fill this gap, this paper proposes an energy consumption prediction approach for die casting machinesConsequently, a systematic energy consumption prediction approach for die casting machines, involving

Keywords： die casting machine energy consumption prediction product parameters

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Thermal deflection analysis of the solidified shell in continuous casting of slab

LIU Hongzhao, WANG Zhongmin

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2, Pages 175-179 doi: 10.1007/s11465-007-0029-3

Abstract: The thermal deformation problem in the continuous casting of a slab subjected to thermal loading becauseThis research is useful for analyzing the bulging deformation in the continuous casting of a slab under

Keywords： s reciprocal loading deflection expression reciprocal opposite

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Macro-architectured cellular materials: Properties, characteristic modes, and prediction methods

Zheng-Dong MA

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3, Pages 442-459 doi: 10.1007/s11465-018-0488-8

Abstract:

Macro-architectured cellular (MAC) material is defined as a class of engineered materials having configurablerelatively large (i.e., visible) size that can be architecturally designed to achieve various desired materialTwo types of novel MAC materials, negative Poisson’s ratio material and biomimetic tendon reinforcedmaterial, were introduced in this study.To estimate the effective material properties for structural analyses and to optimally design such materials

Keywords： architectured material cellular materials multi-scale modeling homogenization method effective material

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Ultrasonic measurement of tie-bar stress for die-casting machine

Frontiers of Mechanical Engineering doi: 10.1007/s11465-021-0663-1

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Progress in Macro and Micro Modeling of Solidification Process of Shaped Casting

Liu Baicheng

Strategic Study of CAE 2000, Volume 2, Issue 9, Pages 29-37

Abstract: Facing the market economy and global challenge, the development of manufacturing industry, especially castingHowever, there is quite a large technical gap between the casting industries at home and abroad.The views on the future trend of innovative casting technologies are consistent at home and abroad.Computer simulation of solidification process of shaped casting can assure the quality of casting, optimizeRecently, numerical simulation of mold - filling and solidification processes of casting and the prediction

Keywords： shaped casting solidification modeling and simulation net shape casting