Tag Archives: Efficiency

Conformal cooling as a support tool for eliminating local defects in high-pressure die casting series production

Conformal cooling as a support tool for eliminating local defects in high-pressure die casting series production

Vladislav Andronov, Zdeněk Pitrmuc, Jan Zajíc, Pavel Šotka, Libor Beránek & Martin Bock  Abstract This study addresses a critical issue in mass-producing gearbox housing MQ200GA at Škoda Auto a.s. The combination of SW ProCAST simulations and metal 3D printing (laser powder bed fusion—L-PBF) overcomes challenges posed by full mold printing. Instead, the authors adapt the conformal cooling design, introducing specific channel

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Gas inclusion cut open by drilling, on the threaded profile.

Modelling the Impregnation of a Pressure-Tight Casting

Abstract Pressure tightness is important for many die-cast aluminium castings, but the interconnected porosity formed in the aluminium alloy high-pressure die castings (HPDC) can form a network connecting several surfaces of the casting, especially as a result of machining after casting. The resulting potential leakage path can be imagined as a series of discontinuities varying in

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Numerical Simulations of Filling Flows in Die-Casting Molding of the Thin-Walled LED Heat Sink

Numerical Simulations of Filling Flows in Die-Casting Molding of the Thin-Walled LED Heat Sink

Rong-Yuan JouNational Formosa University, Huwei, Yunlin, TaiwanPaper No: ESDA2014-20373, V001T06A004; 9 pageshttps://doi.org/10.1115/ESDA2014-20373Published Online: October 23, 2014 In this study, the mold filling analyses of a thin-walled LED heat sink combined with the vacuum valve runner are simulated by FLOW-3D software. Two topics are analyzed and discussed. First, numerical simulations for variety of molding conditions, including effects of

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Recent progress on cast magnesium alloy and components

Recent progress on cast magnesium alloy and components

Hecong Xie, Hua Zhao, Xin Guo, Yongfeng Li, Hengrui Hu, Jiangfeng Song, Bin Jiang & Fusheng Pan Abstract The application of cast magnesium alloy components is increasing in recent years, especially in the new energy automotive and transportation industries. As component application scenarios become increasingly complex, the performance of cast magnesium alloys needs to be further enhanced. Significant progress has been made in

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Figure 1. Schematic diagram of a typical HPDC process.

Development of High Performance Copper AlloyChill Vent for High Pressure Die Casting

Duoc T Phan, Syed H Masood*, Syed H Riza, and Harsh ModiDepartment of Mechanical and Product Design Engineering, Swinburne University of Technology, Hawthorn, Melbourne, Australia*Email: smasood@swin.edu.au Abstract In High Pressure Die Casting (HDPC) process, chill vents are used to allow residual air and gases to exhaust out from the mould cavity. The objective of this

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Advances in Metal Casting Technology: A Review of State of the Art, Challenges and Trends—Part II: Technologies New and Revived

Advances in Metal Casting Technology: A Review of State of the Art, Challenges and Trends—Part II: Technologies New and Revived

by Dirk Lehmhus Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Straße 12, 28359 Bremen, GermanyMetals 2024, 14(3), 334; https://doi.org/10.3390/met14030334Submission received: 25 February 2024 / Accepted: 8 March 2024 / Published: 14 March 2024(This article belongs to the Special Issue Advances in Metal Casting Technology) 1. Introduction It is a platitude that science and technology do not necessarily evolve along straight paths.

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Figure 1. Illustration of LED lighting application and thermal network model.

Savings in Cooling Energy with a Thermal Management System for LED Lighting in Office Buildings

by Byung-Lip Ahn 1,2,Ji-Woo Park 1,Seunghwan Yoo 1,Jonghun Kim 1,Seung-Bok Leigh 2 andCheol-Yong Jang 1,* Abstract Light-emitting diode (LED) lighting should be considered for lighting efficiency enhancement, however, waste heat from light-emitting diode (LED) lighting increases the internal cooling load during the summer season. In order to solve this problem we propose a thermal management system for light-emitting diode (LED) lighting with a

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Fig. 4. Pictorial views of simple, circular pin-fin and copper foam-based heat sinks.

Experimental investigation for thermal performance enhancement of various heat sinks using Al2O3 NePCM for cooling of electronic devices

Imran Zahid ab, M. Farhan a, M. Farooq a, M. Asim a, M. Imran c Abstract Electronic devices are being used extensively for different applications, where the thermal management of these devices is still a critical challenge due to rapid miniaturization, high heat flux and constantly rising temperature. Phase change materials (PCMs) based thermal management is adopted, but the low thermal conductivity limits their use in temperature-controlled electronic devices. Nano-enhanced phase change materials

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Figure 1. Diagrammatic representation of a squirrel-cage induction motor.

Thermal Analysis and Cooling Strategies of High-Efficiency Three-Phase Squirrel-Cage Induction Motors—A Review

by Yashwanth Reddy Konda 1, Vamsi Krishna Ponnaganti 2, Peram Venkata Sivarami Reddy 3,R. Raja Singh 4, Paolo Mercorelli 5,*, Edison Gundabattini 6,* and Darius Gnanaraj Solomon 7 Abstract In recent times, there has been an increased demand for electric vehicles. In this context, the energy management of the electric motor, which are an important constituent of electric vehicles, plays a pivotal role. A

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The characterization of porosity and externally solidified crystals in a high pressure die casting hypoeutectic Al-Si alloy using a newly developed ceramic shot sleeve

The characterization of porosity and externally solidified crystals in a high pressure die casting hypoeutectic Al-Si alloy using a newly developed ceramic shot sleeve

X.Y. Jiao ab, P.Y. Wang c, Y.X. Liu d, W.N. Liu e, A.X. Wan d, L.J. Shi c, C.G. Wang c, S.M. Xiong dShow moreAdd to MendeleyShareCite https://doi.org/10.1016/j.matlet.2024.136045Get rights and content Abstract The effective methods to regulating porosity and externally solidified crystals (ESCs) have been remained as a challenging task for high pressure die casting (HPDC) automobile parts. In this work, a newly designed ceramic shot sleeve is proposed for reducing porosity and optimizing ESCs. As a result, both porosity

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