평금형 압출공정에 대한 변형이방성 예측 알고리즘의 적용Observation of the Deformation-Induced Anisotropy in the Square-Die Extrusion Process

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Due to extremely large reduction of area or extrusion ratio in ordinary production of extruded profiles, anisotropy is naturally induced by large severe deformation during the extrusion process. Therefore, the anisotropic properties play a great role in the post processing of extruded profiles, such as in bending. Moreover, undesirable deformation will be involved when the deformation-induced anisotropy is ignored. In order to observe the deformation-induced anisotropy of the thin-walled product, the proposed algorithm is applied to some chosen industrial extrusion processes. In the resent work, the method for prediction of deformation-induced anisotropy employing the Barlats six-component yield potential to the rigid-plastic finite element method is proposed. The proposed algorithm is verified with the comparison to the crystallographic texture analysis, and then applied to the C-section exclusion process using a square die. The predicted anisotropy is then compared with the experimental and computational observations for validating the proposed algorithm.
Publisher
한국소성가공학회
Issue Date
2002
Language
KOR
Citation

한국소성가공학회 2002년도 춘계학술대회, pp.86 - 89

URI
http://hdl.handle.net/10203/137148
Appears in Collection
ME-Conference Papers(학술회의논문)
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