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논문 기본 정보

자료유형
학술대회자료
저자정보
Keun Park (Seoul Nat’l Univ. of Technology) Hyeju Eom (Seoul Nat’l Univ. of Technology) Sang Ik Lee (Seoul Nat’l Univ. of Technology)
저널정보
한국소성·가공학회 기타자료 NUMIFORM 2010
발행연도
2010.6
수록면
192 - 197 (6page)

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High-frequency induction is an efficient way to heat mold surface by electromagnetic induction in a noncontact procedure. Due to its capability of rapid heating and cooling of mold surface, it has been recently applied to the injection molding of micro/nano structures. The present study investigates a localized heating method involving the selective use of mold materials to enhance the heating efficiency of high-frequency induction heating. A composite injection mold consisting of ferromagnetic material and paramagnetic material is used for localized induction heating. The feasibility of the localized heating method is investigated through numerical analyses in terms of its heating efficiency for localized mold surfaces and the resulting flow characteristics in a micro-channel. To take into account the effects of thermal boundary conditions of the localized induction heating, a fully-integrated numerical analysis effectively connecting electromagnetic field calculation, heat transfer analysis, thermal stress analysis, and injection molding simulation is carried out. The proposed integrated simulation is applied to the injection molding of a rectangular strip containing micro-channels, and the resulting mold heating capacity and replication characteristics of the micro-channels are compared with experimental findings in order to verify the validity of the proposed simulation.

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Abstract
INTRODUCTION
LOCALIZED INDUCTION HEATING FOR MICRO-INJECTION MOLDING
ELECTROMAGNETIC-THERMAL ANALYSIS FOR INDUCTION HEATING
INTEGRATED ANALYSIS OF INDUCTION HEATING AND INJECTION MOLDING
SUMMARY
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2014-550-003335666