Results 61 to 70 of about 3,736,155 (339)

Evaluation of marginal adaptation of CoCrMo metal crowns fabricated by traditional method and computer-aided technologies

open access: yesJournal of Dental Sciences, 2019
Background/purpose: The purpose of this study was to evaluate the marginal gaps of dental restorations manufactured using conventional loss wax and casting, computer-aided design/computer-aided manufacturing (CAD/CAM), and 3D printing methods.
Hao-Sheng Chang   +3 more
doaj   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Continuous Casting Practices for Steel: Past, Present and Future

open access: yesMetals, 2022
This historical review of casting methods used to produce sheets of steel for automobiles, household products, rocket bodies, etc., all point toward the development of one-step commercial processes, which are capable of casting liquid steel directly into
Roderick I. L. Guthrie, Mihaiela M. Isac
doaj   +1 more source

SAND CASTING: CONVENTIONAL AND RAPID PROTOTYPING MANUFACTURING APPROACHES

open access: yesInternational Journal of Research in Engineering and Technology, 2014
Sand casting provides an economic method for mass production of complex and intricate features of metal parts. Manufacturing of moulds to cast small and medium type products involve relatively long lead time and high tooling costs. The application of Rapid Prototyping (RP) technologies to fabricate complex sacrificial patterns can result significant ...
openaire   +1 more source

Life Cycle Analysis of Conventional Manufacturing Techniques: Sand Casting

open access: yesManufacturing Engineering and Materials Handling Engineering, 2004
Conventional manufacturing techniques have not been subject to much scrutiny by industrial ecologists to date. Many newer techniques and products draw more attention as they rise quickly from research to global scales, amplifying their environmental consequences.
Stephanie Dalquist, Timothy Gutowski
openaire   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Derivation and application of time step model in solidification process simulation [PDF]

open access: yesChina Foundry, 2007
The heat transfer during the casting solidification process includes the heat radiation of the high temperature casting and the mold, the heat convection between the casting and the mold, and the heat conduction inside the casting and from the casting to
GONG Wen-bang   +2 more
doaj  

Processing map of 2219 Al alloy prepared by internal electromagnetic stirring direct chill casting

open access: yesJournal of Materials Research and Technology, 2022
Hot compression tests are carried out for the 2219 Al alloys, which are prepared by conventional direct chill casting and internal electromagnetic stirring direct chill casting respectively.
Yang Qiu   +7 more
doaj   +1 more source

Pressure rig for repetitive casting [PDF]

open access: yes, 1989
The invention is a pressure rig for repetitive casting of metal. The pressure rig performs like a piston for feeding molten metal into a mold. Pressure is applied to an expandable rubber diaphragm which expands like a balloon to force the metal into the ...
Hutto, William R.   +2 more
core   +1 more source

Manufacture of Two-layers and Double-sided Iron Castings with Differential Structure and Properties [PDF]

open access: yes, 2015
The paper proposes a new method of production of bilayer and double-sided castings with differentiated structure and properties using the technology of in-mold modification of the initial melt, smelted in a single melting furnace, which ensures formation
Fesenko, A. (Anatoliy)   +4 more
core   +2 more sources

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