C28 高速粒子衝突による材料除去のメカニズム : パウダージェット加工に関する研究(OS7 研削・砥粒加工(2))

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  • C28 Material removal mechanism by impact of high speed particles : Study on powder jet processing

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Functional surface has been required to improve optical property, contamination resistance and antiwear property. Powder jet processing is a novel machining process to fabricate functional surface because it is a low cost and highly efficient method. In powder jet processing, accelerated ceramic particles are impacted on a substrate, and particles partly remove the surface of substrate or deposit on the substrate. In this study, the effect of high speed alumina particle impact on glass substrate is studied. It is found that critical accelerating gas flow rate to crack by single particle is 2 L/min and that material removal starting point is 7.4〜15 mg/mm^2.

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