Re: [CAD_CAM_EDM_DRO] Re: Stainless tubing/gun drill

And don't forget that they were made from Iron/steel that they had to mine and
smelt themselves. No Bessemer process etc., so medium carbon was about the
best they could do, but the same is true for Samurai swords, as well. Lots of
difficulties, though not so bad as Sigurd faced. According to the Saga of
Sigurd, when he made his legendary sword, the first thing he had to do was kill
a dragon in order to use it's heart for his forge fire.....:-)

Bill

On Thu Jan 3 13:23:33 2002, dave_ace_me, <davemucha@...> wrote:

>When I first got into machining, I was amazed at what my boss could
>do. Somewhere along the line, I picked up the phrase that loosly
>goes that a poor machinest can do a fair job with great tools but a
>great machinest can do a great job with poor tools.
>
>making a sword with stones and fire pits seems to fit the latter.
>I have fit the erlier, but now am somewhere in between.
>
>Dave
>
>
>
>--- In CAD_CAM_EDM_DRO@y..., Bill Vance <ccq@x> wrote:
>> On Wed Jan 2 22:34:43 2002, nielsenbe@a..., <nielsenbe@a...> wrote:
>>
>> >don't confuse gun magazines with accurate information. There are
>dozens of
>> >barrel makers and if there were mystical barrels from somewhere
>else someone
>> >would copy thier setup. The barrels made by kreiger, hart and many
>others are
>> >probably more accurate than bullets can be made.
>>
>> When they can show pics of the shop/personel, I would think it a
>little better
>> than, "mystical". What's that saying? A good craftsman never
>blames his tools.
>> Speed of operation does not mean the end product is better or more
>accurate, et
>> al. Nor does it mean that the products of a complex, modern shop
>are
>> necessarily superior to those of a primitive one. Care and
>craftsmanship when
>> dealling with a multitude of finicky details is not something a lot
>of people
>> want to have to deal with.
>>
>> As an example, the master metalsmiths of the world for almost a
>thousand years,
>> (the Vikings), made the most durable and beautiful pattern welded
>Damascus steel
>> sword blades in the world. There are a bunch of people today, who
>don't want
>> to go to all the time/trouble of making one in a modern shop. How
>many fewer do
>> you suppose there are who'd like to do it as the Vikings did, with
>a hole in the
>> ground for their forge, and an appropriate sized/shapped rock for
>their anvil,
>> and another rock to pound with?
>>
>> FWIW, I understand that the straightest, most accurate barrels
>_in_mass_
>> _production_, are being done in Canada for our M-16's. A
>negatively rifled rod,
>> (mandrel?), has a pair of tubes slide over it, one for the rifling,
>one for the
>> barrel proper. The whole shebang is then inserted into a rotary
>hammer, and
>> cold forged into a rifle barrel.
>>
>> Bill

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