Harmonic Dampening Hv. Stock

[Brandon18]

Harmonic Dampening Hv. Stock

Carbon fiber is a harmonic damper, it is lightweight, and it is also very rigid. Wood by nature, is pound for pound stronger than steel. My idea is to incorporate theses materials into a harmonic dampening Hv. Stock.
Weight is always an issue with benchrest rifles, too much stock and you waste rigidity with you action,to make weight), and visa versa, but if you were to laminate a light strong wood like cherry with carbon fiber the stock would not bend or warp and the weight would, in theory, stay low.
The hard part, harmonic dampening is taking a material or composite and absorbing the vibrations given off. The carbon fiber used in the lamination process would adsorb some of the firing-pen vibrations and any wild vibrations something like an explosion would cause, but I have one other idea, dampening tubes. I would take dense foam or a rubber material and impregnate three carbon 1/8 OD tubes and insert in the forend of the stock. This would also shed some weight in the process. Also, still thinking about weight and dampening vibrations, make the bedding area of the stock out of a solid block of carbon fiber, remember stronger than steel but also a harmonic damper.
I need some ideas on this, price would be naturally high, but what do any of you think would it be worth all the extra time. I will post ideas as they come to me.

 

[Greg110]

Brandon,
First off, use another wood please. As any good woodworker knows, Cherry "squirms", in other words, it is not stable. I am concerned that if you use it in a laminate, there may well be some seroius internal stresses generated over time.

 

[glo]

Brandon, I would suggest using Hickory, as it is the strongest wood,this type of mechanical stress); after that Yellow Birch, White Ash or White Oak. I don’t work with hardwoods enough to understand their stability. I would think a piece of wood, incapacitated in carbon fiber would become very stable, particularly if it had a very low percentage, moisture content.
G

 

[butchlambert]

A solid piece is not a good choice. It just tears up cutting tools. As I mentioned on another forum, balsa, redwood, cedar, paulownia, and of course walnut. Mine is Walnut-carbon fiber laminated HV. The other woods listed above are very strong for weight. Of Course the walnut is heavy. My best friend and partner is designing his with our cad software at this time. I hope you got the photos that I emailed to you.
Butch

 

[puddlejumper]

They have been doing it on archery equipment for years. The theory is the same. I have one that is 4 carbon rods, encompassed with rubber, makes a huge difference on shock. Would probably work really good. Would they be in the stock or mounted on the stock?

 

[TiGuy]

I have to disagree.

Cherry as a laminating material when used along with walnut, mahagony, maple etc. in combination with CF, won't "squirm" like it MAY when used alone in a single block.

When epoxy bonded and vacuum bagged, or pressed, and staggering layered grains, the overall matrix is far too strong to be overcome by one layer of unstable wood,unless it is extremely green)! I have laminated several types of woods together with CF layers between each wood layer, including domestic and brazilian cherry, and have found absolutely no proof that cherry is too unstable.

My personal favorite is a walnut center channel, wrapped in CF, with cherry and hard maple or mahagony outer layers.