« previous next »
Pages: 1 [2]

Author Topic: Tempering rig pics  (Read 3510 times)

0 Members and 1 Guest are viewing this topic.

Offline Marc St Louis

  • Administrator
  • Member
  • Posts: 7,877
  • Keep it flexible
    • Marc's Bows and Arrows
Re: Tempering rig pics
« Reply #15 on: November 10, 2011, 09:39:05 pm »
The high heat of a heat gun plasticizes the wood and allows it to be reshaped into a different form.  It also seems to harden the wood, possibly through a change in its density by driving the air in the cells out.  Steam actually seems to weaken wood a bit.
Logged
Home of heat-treating, Corbeil, On.  Canada

Marc@Ironwoodbowyer.com

Offline JW_Halverson

  • Member
  • Posts: 11,916
Re: Tempering rig pics
« Reply #16 on: November 10, 2011, 10:01:47 pm »
If you were to try dry heat bending or heat tempering green wood it would check and crack on you so bad as to probably ruin any chances of getting a bow from it. 

Dry wood, dry heat. 
Wet wood, wet heat.
Logged
Guns have triggers. Bicycles have wheels. Trees and bows have wooden limbs.

Offline soy

  • Member
  • Posts: 2,897
  • pm106221
Re: Tempering rig pics
« Reply #17 on: November 11, 2011, 02:27:59 am »
Words to live by, jw ;)
Logged
Is this bow making a sickness? or the cure...

Offline PEARL DRUMS

  • Member
  • Posts: 14,079
  • }}}--CK-->
Re: Tempering rig pics
« Reply #18 on: November 14, 2011, 09:13:55 am »
J-dub is right on. Green wood will often open big crevices up. I have had it happen over night while it cooled on the form, even though it was perfect when I shut the shop lights off the day before. The piece I am working now is bone dry white ash.
Logged
Only when the last tree has died and the last river has been poisoned and the last fish has been caught will we realize we cannot eat money.

Offline adb

  • Member
  • Posts: 5,339
Re: Tempering rig pics
« Reply #19 on: November 14, 2011, 11:53:10 am »
If you have a chace, check out Marc St Louis' article in TB Vol4 on heat treating. It covers everything.
Logged
Pages: 1 [2]
« previous next »