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

[Keith Black]

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> 


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              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 
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  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_______________________________________________
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