In preparation for tanren


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Japanese traditional sword making is bound to the use of certain types… Continue reading


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Aku, or charred straw, is used as a coating when forging traditional steels at very high temperatures in the processes of japanese swordsmithing. The charred straw is both a light source of carbon for the steel, as well as an anti-oxidizing coating when it liquifies near welding temperature.

Making aku – Fabrication d’aku


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Aku, or charred straw, is used as a coating when forging traditional… Continue reading