Tag Archives: Review

Study on the Effect and Mechanism of Mold Temperature and Ceramic Particle Alumina on the Strength and Water Solubility of NaCl–Na2CO3 and NaCl–Na2SO4 Composite Cores

Study on the Effect and Mechanism of Mold Temperature and Ceramic Particle Alumina on the Strength and Water Solubility of NaCl–Na2CO3 and NaCl–Na2SO4 Composite Cores

Xiaorou Ning, Keke Zuo, Yang Li, Wanting Guo, Xiao Peng, Jianguo Su, Lai Song, Weihua Liu, Tongyu Liu & Yuyan Ren  Abstract In the process of pouring salt cores, it is crucial to select the appropriate mold temperature, which is essential for the shaping and strength of the salt cores. Additionally, salt cores need to undergo water-soluble cleaning after casting, which has certain requirements for

Read More

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

Read More

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

Read More

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

Read More

Progress in the preparation, forming and machining of metallic glasses

Progress in the preparation, forming and machining of metallic glasses

Xiaoke Li, Gaohui Li, Jun Ma, Yang Cao, Yapeng Xu, Wuyi MingShow moreAdd to MendeleyShareCite https://doi.org/10.1016/j.jmapro.2024.03.022Get rights and content Highlights Abstract Metallic glasses (MGs), also known as amorphous alloys, has a unique atomic structure with long-range disorder and short-range order. MGs has excellent mechanical properties and is favored by many industries, such as, aerospace, medical devices, electronics and electricity, sports and leisure, etc. However, large-size MGs

Read More

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.

Read More

Al-enabled properties distribution prediction for high-pressure die casting Al-Si alloy

Al-enabled properties distribution prediction for high-pressure die casting Al-Si alloy

Yu-Tong Yang, Zhong-Yuan Qiu, Zhen Zheng, Liang-Xi Pu, Ding-Ding Chen, Jiang Zheng, Rui-Jie Zhang, Bo Zhang & Shi-Yao Huang Abstract High-pressure die casting (HPDC) is one of the most popular mass production processes in the automotive industry owing to its capability for part consolidation. However, the nonuniform distribution of mechanical properties in large-sized HPDC products adds complexity to part property evaluation. Therefore, a methodology

Read More

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

Read More

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

Read More

Effects of Cr-addition on ageing response of an Al–Si–Mg die cast alloy

Effects of Cr-addition on ageing response of an Al–Si–Mg die cast alloy

Yiwu Xu ab1, Yuxin Zhang c1, Jinping Li d, Pan Wang e, Jianfeng Wang e, Houwen Chen c, Houqing Sun f, Hongyi Zhan e Abstract Chromium (Cr) is rarely added to Al–Si die cast alloys as it has a strong tendency to induce the formation of coarse-sized sludge particles. In the present study, high pressure die-cast samples made of Al-7wt.%Si–Cr–Mg alloys with varied Fe contents (0.11 wt%, 0.26 wt% and 0.32 wt%) were tensile tested under as-cast and T5 heat-treated conditions, in comparison

Read More