ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Possibilities of the consolidation process using hot extrusion and subsequent hot rollingwere investigated in order to recycle the cutting chips of the aluminum alloy efficiently. For therolling process, differential speed rolling (DSR) was also applied in addition to normal rolling.Several kinds of cutting chips with different size and cleanliness were collected through turning 6061aluminum alloy round bars. From these cutting chips, recycled material sheets were produced undervarious processing conditions via hot extrusion and subsequent hot rolling. Non-recycled materialsheets were also prepared for comparison. All samples were characterized by optical microscopy,SEM(EBSP), X-ray texture analysis, tensile test and corrosion test. As a result, it was found that therecycled material sheets produced under optimum processing conditions had smaller grain sizes thanthose of the non-recycled ones, therefore the mechanical properties and the corrosion resistance of therecycled material sheets were almost comparable to those of the non-recycled ones. Moreover,concerning the DSR processed sheets, the traces of the chip interface, which were clearly observed inthe normally rolled ones, almost disappeared, and the appearances were remarkably improved. Thenthe DSR processed sheets significantly surpassed the non-recycled ones in the tensile properties andthe corrosion resistance
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.544-545.443.pdf
