BHolcombe":8m3jecxk said:
Many (probably nearly all of them) are using trip hammers but that which is a huge dividing line is the gas forge, the traditionalist is using pine charcoal and it makes for a better product giving that the talent and ability is there.
How so? What evidence do you have to suggest that working with pine charcoal produces a better result? What is the mechanism of action for the improvement?
I suspect if I took three knives, the one from the OP, and two of the same design one forged with a gas hearth and power hammer and one made by water-jet cutting Hot-rolled plate.
- functionally they would be indistinguishable,
- The pine-charcoal one might be carburised on the surface giving increased hardness, but the effect wouldn't be uniform enough to be truly meaningful.
- Etching the surface to show microstructure would reveal that both forging methods produced the same effect of flowing the grain in specific directions to increase the stiffness of the workpiece,
- the one cut from plate would exhibit substantively similar characteristics when etched, as long as the cut was aligned with respect to the grain structure produced by rolling.
[Apologies, I'm aware that this devolves into a kind of rant beyond this point]
Blacksmithing, at heart is just a name for small scale forging, which boils down to bashing hot metal to achieve specific properties... As these properties are desirable, they're well studied, and modern methods have been fine tuned over the last 175 years to produce things to exacting standards. It's almost insulting to the industry and the individuals who have been involved with that development and the current practice of forging to suggest that they can't possibly meet the standards of someone using traditional methods.
I have a lot of respect for the skill of this famous Japanese smith, but I doubt that it exceeds that of the skilled smiths of the early Victorian era. His experience and apprenticeship will have taught him approximations of how to achieve results we can now deliver with great accuracy and reliability; and he rightly deserves recognition for his dedication to his craft.
However, with regard to your earlier comment
BHolcombe":8m3jecxk said:
... top tier of smithing in a country known for quality blacksmithing.
,
give where credit is due, Germany and the UK have led the world in forging for well over a century, and on such a phenomenally grand scale that Japan's cottage industry is not of any great note by comparison; the Chinese and Taiwanese (or is it Chinese and Chinese?) have followed hot on their heels, and the US made a pretty important contribution to during the 1910-1970 period too...