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http://dx.doi.org/10.5228/KSPP.2009.18.5.422

Measurements of Micro-Defects in the Aluminum Thixoformed Part using Computed Tomography(CT) Technology  

Lee, S.Y. (국립안동대학교 공과대학 신소재공학부)
Kim, C.H. (주식회사 와이지원 기술부)
Publication Information
Transactions of Materials Processing / v.18, no.5, 2009 , pp. 422-427 More about this Journal
Abstract
Computed tomography(CT) has been applied to measure micro-defects in the aluminum knuckle parts manufactured by the thixoforming process. 6061 aluminum alloys were used to form knuckle samples in the semi-solid temperature after the SIMA processing of billets. Tensile specimens were cut from the different locations in a thixoformed knuckle. The size and the distribution of forming defects in tensile specimens were analyzed using CT scanning and image analysis technology before tensile tests. It has been qualitatively shown that the stress-strain curves were significantly affected by the size and the distribution of forming defects although the defect sizes lie in the range of micro-meters.
Keywords
Computed Ttomography(CT); Aluminum Knuckle; Thixoforming; Forming Defects; Stress-strain Curve;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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