another twist-core

[Battara]

Originally Posted by Gustav

Newbold (1839) describes topographical etching of kerisses from Malay Peninsula:

"Place on the blade a mixture of boiled rice, sulphur, and salt beat together, first taking the precaution to cover the edges of the weapon with a thin coat of virgin wax. After this has remained on seven days, the damask will have risen to the surface; (...)"

Actually this makes sense. This is an old technique and is still used today to deeply etch metals.

Oh yes and congratulations (grumble, grumble ). I am so happy for you getting such a nice blade (grumble, grumble ).

[DaveS]

I was fairly sure that the first kind of pattern was done with a deep
acid etch, but the second type with the threads of nickel has to be con-
structed the same way as any type of Indonesian pamor. I can't see that
it could be done any other way.........Dave

[kino]

I really like this Kris, with the not too common to me, a 3 waved blade.
As I understood, a true taluseko

[Gustav]

Originally Posted by DaveS

I was fairly sure that the first kind of pattern was done with a deep
acid etch, but the second type with the threads of nickel has to be con-
structed the same way as any type of Indonesian pamor. I can't see that
it could be done any other way.........Dave

oncemore -

both kinds (actually there is only one kind) are done like a normal Pamor from Indonesia or Malay Peninsula, using iron with some nickel % or some other element, which would react differently with acid.

The difference here is only the method of etching - topographical (like described by Newbold - a strong etch) or a normal one.

[DaveS]

Gustav: A deep topographical acid etch to create a twist pattern is
completly different than a manipulation of a bar of iron and nickel
to create a desired pattern. The twist core kris i posted last week
was done in an entirely different way to get that pattern, then it
was etched to bring that pattern out. A deep etch using acid and
some kind of resist is the same as seen on some swords and
"damascus" gun barrels.........Dave.

[Gustav]

Dave:

the Pamor material used is absolutely the same: two bars on each side of a core, consisting of alternate layers of two different kind of iron. On your other kris (http://www.vikingsword.com/vb/showthread.php?t=17861) the torsion of these bars has a big frequency, there are not many twists & the layers are laying comparatively wide apart, so the Pamor actually looks like a kind of horizontal Pamor after the forging. Deep etch of such kind of Pamor wouldn't make much sense esthetically. On this older example of yours the frequency of torsion is quite small, so the different layers are pressed close together.

Gustav

P.S.

I thought this kris looks familiar and found it with the same kind of discussion: http://www.vikingsword.com/vb/showth...4672&highlight

The Pamor on this blade is a real Pamor with a deep etch and not a Pamor faked via etching.

[DaveS]

Gustav: I had forgotten that i had this kris posted earlier. I'm still not
quite convinced that this type of pattern is not simply caused by
a deep acid etch as opposed to a forge-welded technique. The two
just don't seem compatable to me. But that is what make this
collecting so interesting, trying to figure out how something was
done. While collectors may not always agree on certain techniques
of construction, we all agree on the beauty of the end result...Dave.

[Battara]

Actually Dave the 2 are very compatible and were done together.