JOM
The rapid prototyping process has reached the stage of rapid manufacturing via the direct metal deposition (DMD) technique. The DMD process is capable of producing three-dimensional components from many of the commercial alloys of choice. H13 tool steel is a difficult alloy for deposition due to residual stress accumulation from martensitic transformation; however, it is the material of choice for...
The online version of the original article can be found at http://dx.doi.org/10.1007/BF02914687
Aluminum-silicon alloys are the most important commercial aluminum casting alloys, primarily because of their superior casting characteristics. This article discusses the effect of hot isostatic pressing on the mechanical properties of cast aluminum alloy A356. The effect of low-cost Densal hotisostatic pressing is also examined.
In this article, a newly developed sensor that measures bath and liquidus temperatures is described. The accuracy and reproducibility of the sensor are discussed, and the sensor’s output is compared with results obtained using other techniques. A series of measurements in point-feed and center-worked cells are given. Finally, the evolution of bath and liquidus temperature is shown with respect to...
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This article reviews the heredity of metals and alloys that occurs in the casting process by studying the relationship of Al-Si-Mg-Mn alloy prior to and following a remelting process. The microstructure and mechanical properties of the samples are discussed.
In the past ten years, materials R&D has shifted from monolithic to composite materials, adjusting to the global need for reduced weight, low cost, quality, and high performance in structural materials. This article reviews developments in the molten processing of particulate Al-Si alloy composites and their respective properties. Existing and emerging processing innovations are discussed, and...
Conclusion Efforts have been made to ensure that AusIMM’s CPS approach is generally compatible with the corresponding schemes of other relevant Australian professional institutes as well as those practiced in other areas of the world, particularly in North America and Europe. Time will tell if suitable arrangements can be negotiated with overseas bodies to allow mutual recognition of each others’...
Fire gilding was the predominant technique for the gilding of metalwork from 300 b.c. in China and 200 a.d. in Europe until the invention of electroplating in the 19th century. This article investigates its metallurgical aspects based on studies of original objects, gilding replication experiments, and literary evidence.
Titanium-alloy castings have recently become an attractive option for critical-structural applications in aerospace structures. These opportunities have occurred primarily because of the development of advanced-process technologies, such as rapid-prototyping methodology and solidification modeling, which have dramatically reduced the cost and time required to obtain first-article castings through...
A process based on the use of a plasma system for recovering aluminum from dross, beverage cans, and aluminum scrap has been developed. The plasma process is clean, and there is no need for the addition of any compound, such as salt. In principle, a higher recovery rate of aluminum is attainable, since no oxidation of the aluminum occurs during the process. An economic analysis shows that the operating...
In this article, the results of an investigation of granular and compact aluminum drosses are reported. The bulk density of granular drosses was determined according to DIN 52110-B, while DIN 52102-RE-VA was applied to compact drosses. The salt contents of the drosses were measured by applying the leaching test DIN 38414-S4; the metal contents by the salt-melting process were measured on a laboratory...