Non-destructive test focus on polished surface of Japanese sword
Japanese sword is polished with special stones by traditional method to appreciate the beauty of the steel on its polished surface. There are many special and hidden polishing technique to show different activities of the blade.
We must understand “polishing” before understanding the blade itself. However, it is very difficult to determine by visual examination.
Therefore, we try to resolve these issues using the latest technologies to investigate the polished surface of the Japanese sword.