This video documents the process of creating a Japanese-style katana sword. The creator starts with a billet made from stacked 1095 and 15 and 20 steels, forges and twists it, and then reforges and flattens it to create a patterned steel. The billet is then cut in half for each side of the sword.
The video also covers steps like grinding the blade profile, heat treatment, tempering, hand-sanding to 800 grit, creating the guard and butt cap, wrapping the handle with stingray skin and cord, adding copper fittings, and engraving the maker's mark on the blade. Finally, the blade is etched in acid to achieve its black finish.
Sure, here are the key facts extracted from the text:
1. The blade is made using a combination of 1095 and 15 and 20 steels.
2. The billet is forged into a square bar.
3. The square bar is twisted to create a pattern.
4. The twisted bars are flattened using a rolling mill.
5. The blade is heat-treated to achieve hardness.
6. The handle is made from basswood.
7. Copper is used for inlay and decoration on the handle.
8. The steel fittings are blackened using hot salts.
9. The maker's mark and engraving are added to the tang of the blade.
10. The blade is subjected to an acid bath for etching.
Please note that these facts are based on the text provided and do not include opinions or additional details.