精密工学会誌
Online ISSN : 1882-675X
Print ISSN : 0912-0289
ISSN-L : 0912-0289
論文
微小管付与による離型剤浸透金型の製作とダイカスト鋳造特性
堀 裕生古本 達明千葉 洋尚加藤 直紀山口 貢新川 真人
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2023 年 89 巻 10 号 p. 790-794

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The authors propose using microtubes as an alternative to porous structures for improving the accuracy of release agent penetration in a die-casting mold. They evaluated the effectiveness of this method by examining the characteristics of the release agent, creating microtubes of different sizes and angles using a commercial powder bed fusion machine, and evaluating the release resistance during casting. They found that a larger setting size is needed to permeate the release agent when designing microtubes using a layer-by-layer method, and that increasing the angle of the microtube design improves the accuracy of the microtube's internal shape and stabilizes the amount of release agent penetration. The authors also found that controlling the release agent penetration through a microtube is simpler than controlling it through a porous structure, and that the release agent penetration can be controlled by adjusting the output pressure, allowing for the production of high-quality castings.

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