(Continued from Number (2001) April). Part I covered those papers presented at the Society of Automotive Engineers (SAE) World Congress in March 2001 in Detroit, Michigan during the technical session titled Automotive Applications Utilizing Cast Magnesium. In Part II, the author presents highlights from papers given in four technical sessions that focused on the use of aluminum in automotive applications. First session 'Emerging Casting Processes and Materials for the Automotive Industry': Comparisons are made among several high-integrity die casting processes (squeeze casting, semi-solid metal working, rheocasting). The GMBond sand binder system with protein-based binder is found to be a nontoxic and environmentally friendly core making process. DHT aluminum alloys utilize additions of bismuth to create gall resistant and self-lubricating properties in the as cast microstructure. Relatively new casting processes are: lost foam casting, semi-solid metal working, and liquid hot isostatic pressing. Second session 'Advances in Aluminum Metal Products and Production': The effect of porosity on the fatigue behavior of cast W319 aluminum alloy is studied. For use in Cu-rich alloys, an electrolyte mixture composed of oxalic and sulfuric acids prevents electrochemical dissolution of copper in hard anodic oxide coatings. Discussions include the electromagnetic forming of Al alloys sheet and simulations for taylor welded blanks. Third session 'Rapid Prototyping and Bridge Production of Cast Automotive Components': Spin casting utilizes silicone molds containing multiple cavities. The process is used to directly produce zinc and plastic prototypes, but may also be used to produce wax patterns. The sand casting V-Process is capable of producing Al cast prototypes. The mold is prepared by vacuum packing very fine dry sand between layers of a thin plastic film. The Precicast Process (sand and ceramic casting with fluidized bed heat treatment) produces prototypes with material properties representative of those found in die castings. Fourth session 'Advances in Automotive Casting Processes': There is information on a core making facility with computer aided simulation and vision inspection system for the detection of core damage. In an effort to improve the environmental friendliness of the lost foam casting process, there is a project to recover polystyrene waste.
Light Metal Advances in the automotive industry. Part II: Aluminum
Leichtmetallzuwachs in der Automobilindustrie. Teil II: Aluminium
Light Metal Age ; 59 , 5/6 ; 22-27
2001
4 Seiten, 6 Bilder, 20 Quellen
Article (Journal)
English
Automotive light metal advances. Part I: Innovative designs and emerging technology
Tema Archive | 2002
|Aluminum for the Automotive Industry
SAE Technical Papers | 1929
|