10 January 2006, 02:13
hit-emIs there a way to determine if a blank has been kiln dried ??
I've got a piece of Turkish Walnut that I'm thinking of using for an upcoming project, but I'm not sure how it's been dried ??
I purchased this blank directly from Turkey.
When I compare it to some of my other pieces of Turkish this piece is much lighter in regards to weight then what my other pieces are.
I've heard that this could be a sign of improper drying of the wood.
I would appreciate some advice before I take the time & money to build myself a stock.
Your help would be appreciate.
Thanks,
10 January 2006, 10:00
SDHUnfortunately, I start counting the age of a stock blank from the day it arrives in my shop. Regardless of what you are told, that is all you will know for sure.
SDH
10 January 2006, 19:29
tnekkccRead proffessor Hoadley's book, "Understanding Wood"
http://www.amazon.com/gp/product/1561583588/103-9874276...44?v=glance&n=283155The moisture content of wood can be lowered faster without checking [cracking] in a kiln, becuase the temperature is raised, but he relative humidity of the kiln is varied to stay just lower than if projected on an equilibrium moisture content - relative humidity chart. Thus keeping variation in moisture content inside to the wood to a minimum, thus keeping stresses down.
What does it all mean?
It does not matter if your wood got to it's present state via a kiln, what matters is it's present state.
10 January 2006, 20:48
CustomstoxIf you talk to people who work wood for a living, they will tell you that it does matter. The folks who cut blankss will tell you that they lose a lot more stocks when it is kiln dried. If not they would be cooking the moisture out of them and have them on the market a lot faster.
10 January 2006, 20:54
333_OKHI asked this question before and found that walnut was a no kiln dry, but the Turks do use it. On other woods they let it air dry for a while and then kiln it down. Cherry, I am told need to be kiln dried to ensure stability.
10 January 2006, 21:03
CustomstoxI met a local guy here a few years ago that had one of those portable mills. He also had a kiln. He was retired and in his early 70's. I told him i wanted to cut some walnut but did not want to have it kiln dried and much preferred to have it dry in the air. He laughed and said he used his kiln for everything. He said at his age, he did not even buy green bananas.

10 January 2006, 22:48
hit-emWouldn't the wood itself become brittle if it's dried too quickly ??
I would think that the fibers of the wood would rupture if the moisture is removed to quickly ?
I'm sure if the wood is dried under a controled atmosphere in a kiln it would be less prone to cracking & be suitable for a gunstock.
My biggest concern is once I get into this I'll find myself dealing with checks & splits, but I guess I won't know what I got until I get into it ...so what the hey !!

11 January 2006, 01:07
pdhntr1quote:
Wouldn't the wood itself become brittle if it's dried too quickly ??
Yes
quote:
I'm sure if the wood is dried under a controled atmosphere in a kiln it would be less prone to cracking & be suitable for a gunstock.
Correct also, with emphasis on the word controlled.
Kiln drying is a tool, and as such can be used correctly or incorrectly depending on the kiln operator. The operator must be conscientious and experienced in drying blanks or very likely the results will be firewood.
Jim