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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Japanese sword polishing ： ウィキペディア英語版 Japanese sword polishing Sword polishing is part of Japanese swordsmithing where a blade is polished after forging. It gives the shining appearance and beauty to the sword. ==Polishing== When the rough blade is completed, the swordsmith turns the blade over to a polisher called a ''togishi'', whose job it is to refine the shape of a blade and improve its aesthetic value. The entire process takes considerable time, in some cases easily up to several weeks. Early polishers used three types of stone, whereas a modern polisher generally uses seven. The modern high level of polish was not normally done before around 1600, since greater emphasis was placed on function over form. The polishing process almost always takes longer than even crafting, and a good polish can greatly improve the beauty of a blade, while a bad one can ruin the best of blades. More importantly, inexperienced polishers can permanently ruin a blade by badly disrupting its geometry or wearing down too much steel, both of which effectively destroy the sword's monetary, historic, artistic, and functional value. On high quality blades, only the back of the blade and the adjacent sides, (called the shinogi-ji), are polished to a mirror-like surface. To bring out the grain and hamon, the center portion of the blade, (called the hira), and the edge, (the ha), are usually given a matte finish. Microscopic scratches in the surface vary, depending on hardness. Smaller but more numerous scratches in the harder areas reflect light differently from the deeper, longer scratches in the softer areas. The harder metal appears more matte than the softer, and the manner in which it scatters light is less affected by the direction of the lighting.〔''A History of Metallography'' by Cyril Smith - The MIT Press 1960 Page 53-54〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Japanese sword polishing」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.