[NSRCA-discussion] Cutting CF and FG Panels???

Fri May 9 17:20:44 AKDT 2008

Gray,

Need some guitar hero lessons?   Call my son Ryan... he said he'd luv to give sum.

WG
  ----- Original Message ----- 
  From: Gray E Fowler 
  To: General pattern discussion 
  Sent: Thursday, May 08, 2008 1:34 PM
  Subject: Re: [NSRCA-discussion] Cutting CF and FG Panels???

  Keith 

  Makes sense especially to increase stifness, but I ponder the weight savings after adding the resin and fiber especially is you are laminating with the 5.7oz 3K plain weave (most standard stuff). It is real easy to get over strong, and landing gear usually needs a load distribution into the fuse more than super strong gear plates.  On my firewall, built out of lite ply by Lance, I used 2oz glass to "Strengthen" the ply..it is a waffle design so very stiff. The idea being that the fiberglass will help keep the lite ply from fractures-or waffle delams-disbond. Cannot get 2oz CF and the 1K CF (4.2 oz)  that we make or canopies and chin cowls out of would be overkill. 
  Have you compared weights? that would be interesting. I never have but alway worried about it. 

  How's that Guitar hero frustration game coming along for you? Any cyber groupies yet or have you not made it to that level...like your son has...or did you not realize your son was "involved" so to speak.

  Gray Fowler
  Senior Principal Chemical Engineer
  Radomes and Specialty Apertures
  Technical Staff Composites Engineering
  Raytheon 

        "Keith Black" <tkeithblack at gmail.com> 
        Sent by: nsrca-discussion-bounces at lists.nsrca.org 
        05/08/2008 12:17 PM Please respond to
              General pattern discussion <nsrca-discussion at lists.nsrca.org> 

       To "General pattern discussion" <nsrca-discussion at lists.nsrca.org>  
              cc  
              Subject Re: [NSRCA-discussion] Cutting CF and FG Panels??? 

  I often laminate lite ply in situations where I don't think the lite ply will be strong or stiff enough and I don't want the weight penalty of aircraft ply. I also have laminated regular aircraft ply to give extra strength to things like landing gear plates. This allows me to use a thinner aircraft ply (in my mind anyways). 

  Keith Black 
  ----- Original Message ----- 
  From: Gray E Fowler 
  To: General pattern discussion 
  Sent: Wednesday, May 07, 2008 4:21 PM 
  Subject: Re: [NSRCA-discussion] Cutting CF and FG Panels??? 

  While at work I find these blades on the machine. Somehow they magically show up. Where you would get them??? perhaps McMaster Carr 

  And what is you application that requires carbon fiber laminated on plywood?

  Gray Fowler
  Senior Principal Chemical Engineer
  Radomes and Specialty Apertures
  Technical Staff Composites Engineering
  Raytheon 

        "Keith Black" <tkeithblack at gmail.com> 
        Sent by: nsrca-discussion-bounces at lists.nsrca.org 
        05/07/2008 03:15 PM 
              Please respond to
              General pattern discussion <nsrca-discussion at lists.nsrca.org> 

              To "General pattern discussion" <nsrca-discussion at lists.nsrca.org>  
              cc  
              Subject Re: [NSRCA-discussion] Cutting CF and FG Panels??? 

  This doesn't sound like something one would find at the local hardware store. Where can these blades be found? 

  BTW, what if you have aircraft ply laminated with carbon fiber? I would think in this case one would need a blade with teeth. 

  Keith Black 
  ----- Original Message ----- 
  From: Gray E Fowler 
  To: General pattern discussion 
  Sent: Wednesday, May 07, 2008 8:31 AM 
  Subject: Re: [NSRCA-discussion] Cutting CF and FG Panels??? 

  Larry 

  The proper bandsaw blade for composites does not have any teeth on it at all.  The blade consists of a coating of tungsten carbide bits like rough sandpaper grit adhered to the leading edge of the band. The blade cuts by abrasion and will break before it wears out. Any blade with teeth is bad for composites as it will dull and the teeth can grab and delaminate the sustrate or your bond to the honeycomb.

  Gray Fowler
  Senior Principal Chemical Engineer
  Radomes and Specialty Apertures
  Technical Staff Composites Engineering
  Raytheon 
        "Lisa & Larry" <lld613 at psci.net> 
        Sent by: nsrca-discussion-bounces at lists.nsrca.org 
        05/06/2008 08:59 PM 
              Please respond to
              General pattern discussion <nsrca-discussion at lists.nsrca.org> 

              To "NSRCA" <nsrca-discussion at lists.nsrca.org>  
              cc  
              Subject [NSRCA-discussion] Cutting CF and FG Panels??? 

  What is the best blade to use on a band saw? It has 2 speeds, what is the best speed (1,450 / 3,000 rpm)?

  I need to cut down two 12 x 24 panels and would like a clean edge ( 1/8” CF/Nomex/CF panel, and a FG/Nomex/FG panel) .

  Nope, don't use the band saw much….

  Thanks, 

  Larry Diamond_______________________________________________
  NSRCA-discussion mailing list
  NSRCA-discussion at lists.nsrca.org
  http://lists.nsrca.org/mailman/listinfo/nsrca-discussion 

------------------------------------------------------------------------------

  _______________________________________________
  NSRCA-discussion mailing list
  NSRCA-discussion at lists.nsrca.org
  http://lists.nsrca.org/mailman/listinfo/nsrca-discussion_______________________________________________
  NSRCA-discussion mailing list
  NSRCA-discussion at lists.nsrca.org
  http://lists.nsrca.org/mailman/listinfo/nsrca-discussion 

------------------------------------------------------------------------------

  _______________________________________________
  NSRCA-discussion mailing list
  NSRCA-discussion at lists.nsrca.org
  http://lists.nsrca.org/mailman/listinfo/nsrca-discussion_______________________________________________
  NSRCA-discussion mailing list
  NSRCA-discussion at lists.nsrca.org
  http://lists.nsrca.org/mailman/listinfo/nsrca-discussion 

------------------------------------------------------------------------------

  _______________________________________________
  NSRCA-discussion mailing list
  NSRCA-discussion at lists.nsrca.org
  http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.nsrca.org/pipermail/nsrca-discussion/attachments/20080510/a15cfd92/attachment.html 