틱소몰딩 공정을 이용한 AZ91D Mg합금의 기계적 성질 증대
- Title
- 틱소몰딩 공정을 이용한 AZ91D Mg합금의 기계적 성질 증대
- Other Titles
- Improvement in Mechanical Properties of AZ91D Mg-Alloy through Thixomolding Process
- Author
- 정성종
- Keywords
- 기계적성질; 마그네슘합금; 미세조직; 반응고주조; 틱소트로피; AZ91D; Mechanical property; Mg-alloy; Microstructure; Semi-solid Injection; Thixotropy
- Issue Date
- 2012-08
- Publisher
- 한국생산제조시스템학회
- Citation
- 한국생산제조시스템학회지, 2012, 21(4), P.593-600, 8P.
- Abstract
- Thixomolding of Mg-alloy is a semi-solid injection molding process utilizing thixotropic phenomenon. Using this process, higher strength, thinner wall section and tighter tolerance without porosity are obtained. It has been applied for production of near-net-shape magnesium component. To design optimal thixomolding process of Mg-alloy part, molding conditions such as slurry temperature, mold temperature and injection time should be determined properly. Selection of these parameters has been dependent upon engineers' experience and intuitiveness. In this paper, to improve mechanical properties of the thixomolded product, optimal selection of process variables such as injection velocity, barrel temperature and die temperature in the process has been studied through microstructural analysis and Taguchi method. Performance of the process is verified through experiments.
- URI
- http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=GJGGB3_2012_v21n4_593http://hdl.handle.net/20.500.11754/48316
- ISSN
- 1226-8097; 2233-6036; 2383-4846; 2508-5093
- DOI
- 10.7735/ksmte.2012.21.4.593
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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