Tag Archives: Applications

Induction motors with copper rotor: a new opportunity for increasing motor efficiency

Induction motors with copper rotor: a new opportunity for increasing motor efficiency

ABSTRACT The copper rotor induction motor (CURIM) was recently introduced because it has lower rotor fusion losses than the aluminum rotor (ALRIM). Furthermore, with CURIM, it is easier to reach IE4 and IE5 efficiency levels. The CURIM is advantageous for compact motors, escalators, and electric vehicle applications. However, CURIMs present slip, power factor, temperature increase,

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Fig. 2. TEM images of X (Mg12YZn(LPSO)) phase and W(Mg3Zn3Y2) phase in the Mg–5Zn–5Y-0.6Zr (wt%) alloy, (a) ZW55-I, (b) ZW55-II, (c) ZW55-III and (d) W(Mg3Zn3Y2) phase in ZW55-III [19].

Recent advances of high strength Mg-RE alloys: Alloy development, forming and application

Recent advances of high strength Mg-RE alloys: Alloy development, forming and application Author links open overlay panelYongfeng Li a, Ang Zhang a, Chuangming Li a, Hecong Xie a, Bin Jiang a, Zhihua Dong a, Peipeng Jin b, Fusheng Pan a https://doi.org/10.1016/j.jmrt.2023.08.055Get rights and content Abstract To further expand the application of magnesium (Mg) alloys, development of the high strength Mg-rare earth (RE) alloys is strongly desired. The strength of the Mg alloys can be greatly improved through adding RE elements.

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Fig.No. 2 Copper Die Cast Rotor

STUDY OF OPTIMIZATION OF SQUIRREL CAGE INDUCTION MOTOR USING DCR TECHNIQUE

ABSTRACTInduction Motors are most widely used Electric Motors best suitable for industrial applications as well as lowpower applications in daily used domestic equipment’s because of their unique advantage compared to other types of motors like DC and Synchronous Motors. Electric Motors do not transfer 100% of the input Electrical power into kinetic Mechanical Power. Some

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Ductile fracture prediction of HPDC aluminum alloy based on a shear-modified GTN damage model

Ductile fracture prediction of HPDC aluminum alloy based on a shear-modified GTN damage model

Ductile fracture prediction of HPDC aluminum alloy based on a shear-modified GTN damage model Author links open overlay panelYongfa Zhang ab, Jiang Zheng cd, Fuhui Shen b, Dongsong Li b, Sebastian Münstermann b, Weijian Han e, Shiyao Huang e, Tianjiao Li cShow moreAdd to MendeleyShareCite https://doi.org/10.1016/j.engfracmech.2023.109541Get rights and content Abstract In this paper, we investigate how the shear-modified Gurson-Tvergaard-Needleman (GTN) model can be used to reveal the effect of manufacturing-process-induced porosity on the scatter of ductile fracture properties of a

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Semi-solid Die Casting of Some Aluminum Alloys for Lightweight Automotive Components

Semi-solid Die Casting of Some Aluminum Alloys for Lightweight Automotive Components

Semi-solid Die Casting of Some Aluminum Alloys for Lightweight Automotive Components Part of the Lecture Notes in Mechanical Engineering book series (LNME) Abstract The use of light alloys in automotive applications has been rapidly increasing in the industry as a means to reduce fuel consumption and carbon dioxide emissions. Semi-solid forming process for Al-Si based alloys, which

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Figure 8(a) Inverse pole figure maps for halite grains with large Kristallbrocken grains labelled 1–5. (b) Pole figures of fine-grained matrix halite excluding five Kristallbrocken grains show no significant crystallographic preferred orientation (CPO). (c) Kernel average misorientation (KAM) map overlaid with white low- and high-angle grain boundaries (misorientation >5∘). KAM map was calculated over a distance of 40 µm (second neighbour) with a threshold of 3∘ in order to enhance the small-angle subgrain boundaries. KAM shows subgrain-free matrix halite with few exceptions in large matrix halite grains, Kristallbrocken 1 and 5 with subgrains, and subgrains in boudin necks of Kristallbrocken 3 and 4. (d) Cumulative reference orientation deviation map over the areas of Kristallbrocken 3 and 4, based on more highly resolved EBSD measurements. Reference points for each of the two grains are indicated. Panels (a) and (b) consist of 30 individual measurements, which due to image distortion under 70∘ tilt cannot be stitched perfectly. Therefore, in some cases an artificial separation of areas belonging to the same grain is visible

Large grain-size-dependent rheology contrasts of halite at low differential stress: evidence from microstructural study of naturally deformed gneissic Zechstein 2 rock salt (Kristallbrockensalz) from the northern Netherlands

Jessica Barabasch,Joyce Schmatz,Jop Klaver,Alexander Schwedt,and Janos L. Urai Abstract Constitutive laws to predict long-term deformation of solution-mined caverns and radioactive-waste repositories in rock salt play an important role in the energy transition. Much of this deformation is at differential stresses of a few megapascals, while the vast majority of laboratory measurements are at much higher differential

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Figure 1. High pressure die-casting [1].

An Industrial Perspective on Magnesium Alloy Wheels: A Process and Material Design

An Industrial Perspective on Magnesium Alloy Wheels: A Process and Material Design Miaomiao Wang1,21China Copper Institute of Engineering and Technology, Beijing, China.2Kunming Metallurgical Research Institute Co., Ltd. Beijing Branch, Beijing, China.DOI: 10.4236/msa.2023.141002PDFHTML XML18 Downloads   134 Views Abstract Light weights wheels improve vehicle performance with respect to road handling, cornering as well providing fuel economy and reduced greenhouse gas emissions. Aluminum

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Figure 9- Left: Schematics of a conventional HPDC cold chamber machine [14]; Right: Typical layout of a component produced by a cold chamber machine [15].

High Pressure Die Casting of Zamak Alloys

Steven Richard Pires de OliveiraDissertação de MestradoOrientador na FEUP: Prof. Doutor Rui Jorge de Lemos NetoOrientador no INEGI: Doutora Inês Vieira de Oliveira Abstract The high pressure die casting process has undergone major advances in recent years, due to its increasing use in the automotive sector. Although aluminum alloys are the most widely used, the

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Fig. 1. The as-cast microstructure of the Al–Si–Cu alloy containing 0.1 wt.% Fe. (a) Optical micrograph showing the overall microstructure; (b) SEM image showing the morphology of eutectic Si phase in the deeply etched sample; (c) backscattered SEM micrograph showing the distribution of Fe-and Cu-rich intermetallic phases (inset: the fine compact α-AlFeMnSi intermetallics); and (d) SEM image showing the morphology of Al2Cu phase (inset: the irregular AlCuMgSi intermetallics).

Effect of heat treatment and Fe content on the microstructure and mechanical properties of die cast Al–Si–Cu alloys

HailinYangabShouxunJiaZhongyunFanaShow moreAdd to MendeleyShareCite https://doi.org/10.1016/j.matdes.2015.07.074Get rights and content Highlights • Solution and ageing significantly improve the tensile strength of die-cast Al–Si–Cu alloy. • Low Fe is necessary for improving the ductility in the solution and aged alloy. • Cu-rich phase is dissolved during solutionising of die-cast Al–Si–Cu alloy. • θ′ and Q′ precipitates co-exist in

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Macro Porosity Formation: A Study in High Pressure Die Casting

Macro Porosity Formation: A Study in High Pressure Die Casting

David Blondheim Jr. & Alex Monroe Abstract Porosity formation in high pressure die casting (HPDC) impacts mechanical properties and casting quality. Much is published regarding micro porosity and its impact on mechanical properties, but there is limited research on the actual formation of macro porosity. In production applications, macro porosity plays a critically important role in casting

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