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 New process for hardening wood
Author: ruben 
Date:   2022-07-10 17:17

Dear friends: I read around a year ago that a research team at MIT has discovered a technique for making wood hard as steel. Given that blackwood is becoming extinct, maybe this would be the way to go in the future of woodwind manufacturing: taking commonplace species of wood and hardening them. Needless to say, there exist other parameters that influence tone: density, the fibers of wood, etc. Your thoughts on the matter please. This is something the artisan that I work for -JL Clarinettes-could experiment on.

rubengreenbergparisfrance@gmail.com


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 Re: New process for hardening wood
Author: jdbassplayer 
Date:   2022-07-10 17:57
Attachment:  BAE81607-4FED-41A8-9A7D-7E1231EBA10B.jpeg (1771k)

I assume this is it?

https://www.nature.com/articles/nature25476.epdf?referrer_access_token=Kepx874JYQoXD_8ih8NrV9RgN0jAjWel9jnR3ZoTv0PCy5i9Q4zwaBEuUCd3sS81gNj7sytsS8Bu8YTTSgzFE6fiPZjQsmPHqJsPgBBwrXU60QcTZr6W8mr1PYVQ2TnlMdn3PMK3yoRrtCge97VcCcogyO4VdNUMGMWEkhfnnez_8pj0VRZsmhYMQBqST7QS&tracking_referrer=www.scientificamerican.com

I love the idea of using alternative materials to reduce the cost or increase the accessibility of the clarinet. I’ve been really impressed with Mopane especially. I’ve been on a bit of a quest to make barrels out of different materials lately. So far I’ve tried Purpleheart, Lignum Vitae, Blue Mahoe, Cocobolo and Mopane. Mopane really impressed me because of all the woods I’ve tried it is the only one that machined almost exactly like Grenadilla. It is easy to see why clarinet manufacturers have started to use this wood.

The only thing that frustrates me is that manufacturers are often charging the same price or significantly more for instruments made from Mopane despite the fact that is is a very cheap wood. To give you an idea, I bought a barrel sized blank of instrument quality Mopane for about $2, but I digress.

Getting back on topic, I believe Hanson makes an epoxy reinforced solid wood clarinet, I imagine the technique could be applied to different woods, such as Maple for example.

-JDbassplayer



Post Edited (2022-07-10 18:01)

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 Re: New process for hardening wood
Author: Paul Aviles 
Date:   2022-07-10 18:28

I am very excited by the idea. Perhaps the process will add even more snap and resonance to the sound (much like the effects of carbon fiber in various items from ligatures to clarinets).





..............Paul Aviles



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 Re: New process for hardening wood
Author: ruben 
Date:   2022-07-10 20:57

This wouldn't have to be mopane or rosewoord or the like....maybe very commonplace pine would do.

rubengreenbergparisfrance@gmail.com


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 Re: New process for hardening wood
Author: JTJC 
Date:   2022-07-10 23:16

I haven’t read the detail, but it seems volume of the wood is reduced by 80% through this process (I’m guessing laterally, across the grain). I doubt you’ll find a grenadilla blank, or perhaps any tree-based blank, big enough to make a clarinet out of. Suggests you’d need to glue sections together then make the clarinet. Also, I wonder, how does 80% reduction in volume affect weight? Is the resultant wood 80% heavier than a piece of untreated wood? On the other hand, perhaps the clarinet could be 80% thinner because it’s so dense.

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 Re: New process for hardening wood
Author: ruben 
Date:   2022-07-10 23:51

Once again: there"s no reason why it would ave to be grenadilla any more. Grenadilla was first used to replace boxwood because it didn't warp like the latter. If even very light wood is turned into something rock hard, let's use very commonplace, fast-growing wood.

rubengreenbergparisfrance@gmail.com


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 Re: New process for hardening wood
Author: JTJC 
Date:   2022-07-11 03:16

Grenadilla was just an example. Take pine, with volume reduced by 80%, you’ve still got to start with a large piece of wood to finish with clarinet-sized piece to work on and it’s going to be heavy after the process. If it does weigh so much more and has to be machined thinner so a player can actually support/hold it over a period, there won’t be much material depth to put posts etc into. That suggest a different style of keywork would be necessary, maybe a sort of exoskeleton lattice/metal frame, with keys mounted/glued on it, rather than drilled into the body. High density material might require different machinery to cut it as well. Not so say any of this is impossible to overcome but it would require significant investment in new tooling, systems, wood processing.

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 Re: New process for hardening wood
Author: Paul Aviles 
Date:   2022-07-11 04:26

My guess is that the weight will be the same as the "pre-reduced" size.

Since African Blackwood is already really dense I would not think the reduced wood should be any heavier than that. I guess I'm saying that it should be no different than a billet of African Blackwood and no manufacturing modification would be necessary. Still, there may be some interesting effects to the sound if the collapsed cell structures then vibrate more like crystal.


I know, make a few clarinets out of reduced wood and see what happens!





...............Paul Aviles



Post Edited (2022-07-11 06:13)

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 Re: New process for hardening wood
Author: seabreeze 
Date:   2022-07-11 05:55

Hans Colbers, a mouthpiece maker in the Netherlands, said a few years ago that he had to stop using blanks made of "Zelltec" a hard wood composite developed by Leitner and Krauss in Germany, because the material was so hard that it damaged his tools. And this damage was from the very small adjustments required to put on a facing and flatten a table. Imagine how much worse the problem would be if you were trying to fashion a clarinet from the material!

Another problem with heavy wood is that few players like the feel of a heavy clarinet in their hands. That accounts for the turn to carbon fiber and other elements that can lighten the instrument. Ergonomics and agility tend to benefit from decreased weight and less stress.



Post Edited (2022-07-11 05:57)

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 Re: New process for hardening wood
Author: ruben 
Date:   2022-07-11 12:31

Seabreeze:I play a Selmer Recital-heavier and thicker than other clarinets and harder-blowing. I love the warm, round tone of the instrument, but could do without the three drawbacks I have mentioned.

rubengreenbergparisfrance@gmail.com


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 Re: New process for hardening wood
Author: ruben 
Date:   2022-07-11 12:46

My idea turns out not to be so good, given the perfectly valid reservations other posters ave expressed. It's back to the drawing board, I'm afraid!

rubengreenbergparisfrance@gmail.com


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 Re: New process for hardening wood
Author: Paul Aviles 
Date:   2022-07-11 13:42

So..... we've built a clarinet from this material and it didn't work?!!?





..................Paul Aviles



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 Re: New process for hardening wood
Author: Gemcuttr98 
Date:   2022-08-19 23:19

Mr. Greenberg, perhaps what you seek may be found in a soluble solution of Butvar. Mixed with a solvent to various viscosities, usually Acetone, it is used by researchers, museums, archeologists and Conservators to stabilize and harden wooden artifacts such as shipwrecks and other archeological delicates. It may also be applied (in solution) in a vacuum chamber or pressure vessel. Personally, I use it to preserve marine fossils for handling by the public. Do not lose hope for your vision!

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 Re: New process for hardening wood
Author: ruben 
Date:   2022-08-20 09:53

Thank you so much! -for the information and even more for your encouragement.

rubengreenbergparisfrance@gmail.com


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 Re: New process for hardening wood
Author: ruben 
Date:   2022-08-20 15:59

Dear Gencurrtr: Do you think the process you have suggested could be used to coat the bore of a boxwood clarinet and keep it from warping? Thank you.

rubengreenbergparisfrance@gmail.com


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 Re: New process for hardening wood
Author: Tony F 
Date:   2022-08-20 20:51

Back in the 70's I did some work for a company that used a process similar to the Butvar process mentioned earlier to produce extremely hard-wearing wood floors. The timber was exposed in a vacuum chamber and then the solvent-based hardening agent was introduced. They achieved very good penetration and the treated timber could be cut or planed.

Tony F.

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