12-02-2012, 12:39 PM
Thank you Robert :-) , I`d like to return the compliment!
The "other way" must have been som sort of polishing with different stones and powders / pastes equal to the japanese techniques of sword polishing. Every fine-grinding process with pliant devices will cause a sort of "wavy" microrelief between areas of different hardness in a steel. Also steels with differences in their alloys will react different to the same grinding / polishing medium causing a visible effect.
The "Neuburger Kreide" for example, a special natural silica from a small area north the danube in Neuburg / Bavaria, which now is used in "Sonax" car-polishing stuff, is said to have been mined in roman times.
I´m in some experiments on the effect that different natural european stones and mineral powders produce in the finish of blades of welded steel / iron construction.
But there is still very much work...
The "other way" must have been som sort of polishing with different stones and powders / pastes equal to the japanese techniques of sword polishing. Every fine-grinding process with pliant devices will cause a sort of "wavy" microrelief between areas of different hardness in a steel. Also steels with differences in their alloys will react different to the same grinding / polishing medium causing a visible effect.
The "Neuburger Kreide" for example, a special natural silica from a small area north the danube in Neuburg / Bavaria, which now is used in "Sonax" car-polishing stuff, is said to have been mined in roman times.
I´m in some experiments on the effect that different natural european stones and mineral powders produce in the finish of blades of welded steel / iron construction.
But there is still very much work...
Als Mensch zu dumm, als Schwein zu kleine Ohren...
Jürgen Graßler
www.schorsch-der-schmied.de
www.facebook.com/pages/AG-Historisches-Handwerk/203702642993872
Jürgen Graßler
www.schorsch-der-schmied.de
www.facebook.com/pages/AG-Historisches-Handwerk/203702642993872
