Results 241 to 250 of about 1,899 (264)

Cooling-Assisted Ultrasonic Grain Refining of Aluminum E380 Die Casting Alloy

International Journal of Metalcasting, 2021
Die cast alloys have to be poured at temperatures much higher than their liquidus in order to make the alloys castable. Pouring at a high temperature reduces the formation of dendrites in the shot sleeve which tend to choke the flow at the in-gate but causes increased damage to the shot tooling and dies. Forming globular grains in the shot sleeve is an
C. Vian, C. Kibbey, Y. Chen, C. Kuntz, Q. Han   +4 more
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Additively Manufactured High-Performance Conformally Cooled H13 Tool Steel Die Insert for Pressure Die Casting

Transactions of the Indian National Academy of Engineering, 2021
The performance and life of pressure die casting tools and inserts can be improved by providing efficient conformal cooling. These tools are usually made of H13 tool steel, and additive manufacturing offers the freedom to the design and process to incorporate cooling channels.
D. M. Santhoshsarang, K. Divya, Gururaj Telasang, S. Soundarapandian, Ravi Bathe, G. Padmanabham   +5 more
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Novel cooling channel shapes in pressure die casting

International Journal for Numerical Methods in Engineering, 2001
AbstractThe pressure die casting involves die designs incorporating cooling channels positioned to facilitate the controlled extraction of energy from a solidifying casting. It is now known that subcooled nucleate boiling can occur in cooling channels and this paper is concerned with novel cooling channel shapes that are optimized to promote and ...
Clark, L. D., Davey, K., Hinduja, S.
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Studies on the Cooling Effects of Water Cooling Channels in Die Casting Die in Finite Element Method

Advanced Materials Research, 2012
Die casting is a high productive method to produce non ferrous castings such as Al, Mg alloy. And die temperature field paid important effects on the casting quality and die life. Die temperature field was controlled mainly by water cooling channel in die.
Xin Ping Hu, Juan Zhang, Da Wei Lu, Wen Jun Min   +3 more
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An Experimental Study on the Cooling Effect of Die Casting Die Insert Cooling Devices

Heat Transfer, Volume 3, 2003
Water is usually introduced into a die insert in die casting through a water line to reduce the temperature of the die insert and thus prevent its cracking. In many cases, a drilled waterline circuit is not possible due to confinement of the space. Bubblers or baffles then become typical water passage systems for die insert cooling. This paper presents
Feng Sun, D. Schwam, G.-X. Wang, J. F. Wallace   +3 more
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An experimental investigation of the cooling and heating performance of a gravity die casting mold with conformal cooling channels

Applied Thermal Engineering, 2021
Abstract In the gravity die casting process, cooling directly affects the unit cost and microstructure quality of casting products. In the conventional manufacturing methods, cooling channels in gravity casting molds are usually produced linearly in circular profiles.
Bolattürk, Ali, Coşkun, Ahmet, Gürel, Barış, Kurtuluş, Karani   +3 more
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Relation between cooling rates and microstructures in gravity-die-cast AZ91D disks

Metallurgical and Materials Transactions B, 1999
In-die temperature measurements during the casting of 3.5- and 11.7-mm-thick disks in metal dies at 100 °C, 200 °C, and 400 °C enables calculation of the heat flux from the casting to the die as a function of the casting parameters. Using the flux so determined, the temperature field in the plates could be calculated in agreement with measured values ...
A. Avishei, M. Bamberger
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Equation Model of the Cooling Process in High Pressure Die-Casting Technology

Advanced Materials Research, 2012
In the die-casting technology there is very necessary to determine cooling process of castings in metallic mold especially in the case of castings with great weight to achieve quality surface and properties of the casting without any defects. To regulate cooling in the time course, it is desirable to develop equation of regulation system that ...
Pavol Semanco, Marcel Fedák, Miroslav Rimár, Peter Skok, Emil Ragan   +4 more
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Evaluation of the cooling efficiency of pulse spray for high-pressure die casting processes

The International Journal of Advanced Manufacturing Technology, 2021
This article examined the cooling efficiency of pulse spray under different pressures, duty cycles, and frequencies. The cooling curves of the surface temperature were measured, and the cooling efficiency was evaluated by the temperature drop and the recovery temperature at the die surface.
Jianyue Zhang, Kyler Blowers, Xuzhe Zhao, Corey Vian, Milan Rakita, Qingyou Han   +5 more
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Thermal Characterization of Air-Cooled Aluminum Die-Cast Cylinder Blocks with Various Cast Iron and Aluminum Liners

SAE Technical Paper Series, 2011
<div class="section abstract"><div class="htmlview paragraph">In most air-cooled engines, aluminum cylinder blocks are lined with cast iron, which enjoys a higher wear resistance than aluminum. Recently, rather than a turned periphery, an increasing number of cast iron liners have employed as-cast periphery with projections, so the liner ...
Kohei Nakashima, Yuji Sakakibara, Sumio Teramoto, Masao Yoshida, Yoshio Murakami, Masago Yamamoto, Kiyoyuki Kawai   +6 more
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