A Study on Ingot Making with Horizontal Circular Vibration

概要

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It is confirmed that crystalline grains of various metal materials are refined through a solidification process with a horizontal circular vibration which consists of only a revolutional component and does not include a rotational component. By the experiments about 99.7%A1, it became clear that; (1) higher vibration frequency, larger vibration amplitude, or lower casting temperature makes crystalline grains more refined, (2) vibration during and just after pouring refines crystalline grains, while the subsequent vibration does not cause a remarkable difference in the refinement, (3) the grain refinement is significantly influenced by the condition of mold wall, and (4) the above effect of vibration remains until after successive working.
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