[Harp-L] Re: Embossing v Burnishing

[HTownFess <Spschndr@xxxxxxx>]

Well, I call it an overbend if it's not specifically an overblow, but
never mind me, that one did not really catch on :-).  Joe is right to
point out that swaging is a catch-all term for a lot of cold metal
working, but it seems to be used mainly with tubing, rods, and
interference fits.  Anyone who's done much embossing of reedslots will
tell you that interference fits are not fun there.  I think "staking"
was proposed back in 2000, since staking tools can be useful for
embossing, but again, you are not fixing something permanently in
place, you are raising a new edge that is meant not to touch the
reed.  Joe, when you emboss a reedslot, the reedplate does wind up
thinner . . . on the "upper" side of the boss, the side closest to the
reed.  The boss is formed by pushing from one side, true, but much
seems permitted in embossing, anything that forms the element that's
in relief.  Relative to the sides of the reedslot, material is pushed
*out* into the slot, and that's the raised boss, and it doesn't have
to be vertical like mountains: up's a tricky word here.  A boss is
raised on each wall of the reedslot, and that's what cuts down the
clearance.  Because it's a pointy, sharp boss, it affects the tone in
ways that have been remarked onlist.

Joe says, <<Soo, when a person draws a sharp object along the sides of
an opening
making a furrow or cut, it would seem that they are embossing. In
actuality, they are swaging. >>

No, I called that swaging, not embossing, check my third paragraph.

Seems to me that ca. 2000, somebody prominent just gave up and started
calling it "sizing" the reedslot: fitting it to the clearance you want
by whatever means you care to employ.  There's always that option.  To
me, embossing means the common method of pressing a rounded tool into
the square-edged slot and running it along to raise bosses along each
side of the slot to reduce reed clearance.

I see the point about swaging, especially when it's swaging to create
the kerf on a saw blade, but even then they seem to be using a mandrel
and a die that's rotated. I just don't think it's as specific or as
clear as embossing is for what people commonly do . . . plus I helped
shove embossing into circulation a few years ago and it's gained
traction since, as noted below.

I've certainly learned a bit this time--good measure of what's become
available online since the turn of the century terminology tussle.

Stephen Schneider

On Jan 2, 2:17 pm, "jcolbysp...@xxxxxxxx" <jcolbysp...@xxxxxxxx>
wrote:
> I vote we call it embossing because most people know what that means.  It may not be an accurate term, but we know what it means.  Just like the term "overblow".  
>
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