156 resources related to Die casting
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2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting
The joint meeting is intended to provide an international forum for the exchange of information on state of the art research in the area of antennas and propagation, electromagnetic engineering and radio science
The CDC is the premier conference dedicated to the advancement of the theory and practice of systems and control. The CDC annually brings together an international community of researchers and practitioners in the field of automatic control to discuss new research results, perspectives on future developments, and innovative applications relevant to decision making, automatic control, and related areas.
The ACC is the annual conference of the American Automatic Control Council (AACC, the U.S. national member organization of the International Federation for Automatic Control (IFAC)). The ACC is internationally recognized as a premier scientific and engineering conference dedicated to the advancement of control theory and practice. The ACC brings together an international community of researchers and practitioners to discuss the latest findings in automatic control. The 2020 ACC technical program will
APEC focuses on the practical and applied aspects of the power electronics business. Not just a power designer’s conference, APEC has something of interest for anyone involved in power electronics including:- Equipment OEMs that use power supplies and converters in their equipment- Designers of power supplies, dc-dc converters, motor drives, uninterruptable power supplies, inverters and any other power electronic circuits, equipments and systems- Manufacturers and suppliers of components and assemblies used in power electronics- Manufacturing, quality and test engineers involved with power electronics equipment- Marketing, sales and anyone involved in the business of power electronic- Compliance engineers testing and qualifying power electronics equipment or equipment that uses power electronics
The PCIC provides an international forum for the exchange of electrical applications technology related to the petroleum and chemical industry. The PCIC annual conference is rotated across North American locations of industry strength to attract national and international participation. User, manufacturer, consultant, and contractor participation is encouraged to strengthen the conference technical base. Success of the PCIC is built upon high quality papers, individual recognition, valued standards activities, mentoring, tutorials, networking and conference sites that appeal to all.
Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission
Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.
Component parts, hybrid microelectronics, materials, packaging techniques, and manufacturing technology.
IEEE Computer Graphics and Applications (CG&A) bridges the theory and practice of computer graphics. From specific algorithms to full system implementations, CG&A offers a strong combination of peer-reviewed feature articles and refereed departments, including news and product announcements. Special Applications sidebars relate research stories to commercial development. Cover stories focus on creative applications of the technology by an artist or ...
Provides leading edge information that is critical to the creation of reliable electronic devices and materials, and a focus for interdisciplinary communication in the state of the art of reliability of electronic devices, and the materials used in their manufacture. It focuses on the reliability of electronic, optical, and magnetic devices, and microsystems; the materials and processes used in the ...
2009 ICCAS-SICE, 2009
Die casting is adequate for mass production and it has the advantage of being able to yield a complicated shape accurately. A defect of die casting for high-speed injection molding is the occurrence of shrinkage cavities. To avoid the shrinkage cavities, velocity control of a plunger is very effective. However, the velocity control input is manually constructed by skillful workers ...
Proceedings of Seventh Annual IEEE Visualization '96, 1996
We present a new visualization approach to support design for manufacturing (DFM). This involves the correlation of manufacturing problems with the causative geometric characteristics. We then discuss the use of distance transform and 3-D thinning to extract these characteristics from a voxelized object. In contrast to current computer aided engineering (CAE) tools, our system is very efficient and simple to ...
2011 International Conference on Consumer Electronics, Communications and Networks (CECNet), 2011
The analyses of machining allowance of the auto-panel die blank casting in rough processing was discussed in this paper. And a method was developed to get the roughly uniform allowance and the excessive allowance was transferred to the bottom plane of the cast blank, which can be cut rapidly by the general machine tool with the large feed & high ...
2006 First European Conference on Antennas and Propagation, 2006
Alternating phase fed single-layer waveguide slot arrays are high gain, high efficiency and very low cost antennas. They consist of two components, a slot plate and a base plate, manufactured by punching and die casting respectively. As the size of the array and the gain becomes high, the bandwidth of the overall antenna becomes narrower. In order to cover the ...
IEEE Transactions on Magnetics, 2013
This paper deals with the analysis techniques of a high speed and high efficiency 10 kW, 30,000 rpm rated induction motor. The induction motor has been analyzed by time-varying magnetic finite element method and the test results show that there is a possibility that the motor could be used in a high speed spindle system application. All analysis techniques are ...
Generalize or Die: Operating System Support for Memristor-based Accelerators: IEEE Rebooting Computing 2017
ON-CHIP VOLTAGE AND TIMING DIAGNOSTIC CIRCUITS
CASS Lecture by Dr. Chris Hull, "Millimeter-Wave Power Amplifiers in FinFET Technology"
Heterogeneous Integration Roadmap
HKN: OK, I'm About to Graduate. Now What?
Die casting is adequate for mass production and it has the advantage of being able to yield a complicated shape accurately. A defect of die casting for high-speed injection molding is the occurrence of shrinkage cavities. To avoid the shrinkage cavities, velocity control of a plunger is very effective. However, the velocity control input is manually constructed by skillful workers because analysis behavior of molten metal is very difficult and the injection molding is performed in invisible places in the mold. In this paper, fluid behavior and quantity of air entrainment caused by a die casting plunger movement are analyzed by using CFD. The optimum velocity control input of die casting plunger is calculated in order to enable the reduction of air entrainment and prevent the occurrence of shrinkage cavities in die casting product. An optimization is performed by the genetic algorithm incorporating CFD simulator.
We present a new visualization approach to support design for manufacturing (DFM). This involves the correlation of manufacturing problems with the causative geometric characteristics. We then discuss the use of distance transform and 3-D thinning to extract these characteristics from a voxelized object. In contrast to current computer aided engineering (CAE) tools, our system is very efficient and simple to use. It does not require the skill and experience to generate and control a numerical mesh and interpret the results. The specifically tailored visualization system makes the results self-evident. Though the current domain is die casting, it could potentially be applied to many net shape processes.
The analyses of machining allowance of the auto-panel die blank casting in rough processing was discussed in this paper. And a method was developed to get the roughly uniform allowance and the excessive allowance was transferred to the bottom plane of the cast blank, which can be cut rapidly by the general machine tool with the large feed & high removal rate process. An analyses example of metal allowance of a punch part blank surface was given to improve quality of the surface process.
Alternating phase fed single-layer waveguide slot arrays are high gain, high efficiency and very low cost antennas. They consist of two components, a slot plate and a base plate, manufactured by punching and die casting respectively. As the size of the array and the gain becomes high, the bandwidth of the overall antenna becomes narrower. In order to cover the 1.71 GHz range allocated for 26 GHz FWA in Japan with 31.5 dBi gain, 10 types of arrays, each with 180 MHz bandwidth must be prepared. This paper proposes the band switching arrays in which only the slot plate is switched for each channel while the base plate is common for all channels. The degradation of the arrays with the base plate designed at the offset frequency is compensated by the slot deign. A 1 GHz band is covered with a gain reduction of only 0.3 dB which should be compared with 5 dB if not using interchangeable slot plates.
This paper deals with the analysis techniques of a high speed and high efficiency 10 kW, 30,000 rpm rated induction motor. The induction motor has been analyzed by time-varying magnetic finite element method and the test results show that there is a possibility that the motor could be used in a high speed spindle system application. All analysis techniques are introduced to develop a high speed and high efficiency induction motor made by copper die casting. The analysis techniques are composed of magnetic analysis considering losses and input current (PWM and sinusoidal), structural analysis of rotor and stator, 3-D rotordynamic analysis and 3-D CFD. All performances of the prototype are successfully verified.
This paper suggests the improved design of stamped base using 2.5 inch hard disk drive (HDD). The stamped base has lower stiffness than that of die casting base. Therefore, it is necessary to analysis and improving the shock performance of stamped base to realize the HDD system. To improve shock performance of stamped base, the finite element model is constructed by verifying the experimental result and the shape of stamped base is modified. Finally, shock performance of stamped base has been verified with simulation.
The paper focused on design and implementation of remote monitoring system for die casting units, which realized information management of die casting units. The Ethernet network architecture of the system was designed in consideration of the communication distance, communication quality and electromagnetic compatibility. The monitoring terminal used the OPC interface and the Ethernet technique to exchange data with the software PLC in industrial site. Due to the advantages of perfect function and friendly user interface, the industrial configuration software was used as a development tool for the human-computer interface design. The function and the arrangement of the human machine interface were designed according to the requirement of the company. The system realized production process monitoring and production information management through data collecting and processing. Machine status, operating parameters, injection data and production information could be found in HMI.
Summary form only given, as follows. Die casting is used extensively to produce Al, Mg and Zn alloy parts. H-13, a widely used die material, is a medium carbon steel alloy with Cr, Mo, and Si. A problem with die casting is soldering, thermal fatigue cracking, and carbon buildup which cause degradation of the casting. Application of a metallic coating to the die has been shown to increase the resistance to thermal fatigue cracking. In this study, a tungsten/tungsten carbide thin film was deposited on a casting die of H-13 die steel by a two step Plasma Source Ion Enhanced Deposition process using an argon and methane plasmas. The film was characterized using Auger Electron Spectroscopy, Scanning Electron Microscopy and Electron Dispersive Spectroscopy. The die and representative castings (from regular intervals during the lifetime of the die) were examined for evidence of soldering, thermal fatigue cracking and carbon buildup.
Because of the nature of the die casting process, the part geometry severely restricts the die geometry and hence affects the quality of the part. However, as is often the case in other manufacturing processes, diecastings are currently designed purely based on their function. The manufacturability of the diecastings is not considered until the design has been nearly completed and detailed. This is due to the design support limitations of current CAE tools. We present a new volume-based approach to support diecastability evaluation, especially in preliminary design. Our approach can be applied to arbitrarily shaped parts without pre-defined feature libraries. The focus is on the identification of geometric characteristics, e.g. heavy mass regions, that could be responsible for thermal-related part defects. A distance transform with city-block metric is used to extract this geometric property. Volume visualization techniques are also adopted to allow users to visualize the results in a clear and precise way.
IC power dissipation requirements have been rising faster than the technology needed to economically cool them. Die casting of low cost materials, especially Al doped Zn, creates a porosity free, low cost, efficient heatsink. Hand poured Al and brass alloys are also useful in special circumstances, but with a cost penalty. Airfoil shapes can be made to take full advantage of true 3D casting shapes and direct airflow as required, greatly reducing back pressure by creating turbulence only where needed. Assembly clues such as arrows can be located along with stops and alignment pins, and turbulence enhancing grooves and attachment points can be added with little per piece cost penalty. Our particular design utilizes a Zn-Al material. Its shape was optimized from CFD and FEA thermal simulations for minimum back pressure and even heat distribution. This investigation is based from the work of cooling PXFL, licensed to Hewlett Packard as the Visualize PXFL, the world's fastest graphics computer, dissipating about 450 W per board. The cooling problem in this project stemmed from the electrical design, requiring 3 closely spaced rows of processors 8 to 10 deep. Nine of these double-sided boards were placed side by side with spacing of only 50 mm between boards, all to be forced air- cooled. The back pressure using standard fin or turned heatsinks was unacceptable. A custom shape heatsink was designed to provide adequate cooling to all 44 processors mounted on both sides of the board while controlling airflow to minimize back pressure.
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