At 05:19 01/12/2005, you wrote:
> >During WW2 a fast bandsawing method using wood cutting bandsaws was used on
> >metal parts. The basics of it were that full size, full power wood-cutting
> >bandsaws were used at full speed to friction heat the contact point to red
> >hot steel, which the teeth of the blade, each only in intermittant contact
> >and thus cool themselves, would rip, in little gobs, out of the work piece.
> >The part would seem to just fall through the blade, by the descriptions. It
> >had a nasty reputation as a finger amputator, because the resistance to
> >cutting was none, and people had their hands in the blade before they even
> >knew the cut was happening. Anti-intuitive in the worst way. You don't see
> >this anymore, although every few years somebody publishes about their
> >experiences with it. Very dangerous to learn.
>Yikes! That sounds just plain nasty! But hey - if you did cut off a
>few fingers, at least it would cauterize the stumps! <grin>
>Must have been some interesting looking blades... I don't see how
>they kept the blade itself from overheating.
If the cutting speed is fast enough, each tooth is only in contact for a
very short period of time and has the rest of the "round trip" to cool down