Like Tree0Likes

The Birth of a Race Boat

Reply
Old 10-13-2009, 06:16 PM
  #51
Registered
 
dammmagnum's Avatar
 
Join Date: Jan 2003
Location: Danville, CA
My Boats: Magnum Sport -27 Sport
Posts: 797
Default

[QUOTE=glassdave;2972187]Autoclaves work on positive pressure not vacuum. When combined with a vacuum bagged laminate the part is first layed up, completely bagged and vac'ed of any air voids then placed in the autoclave and kept under full vac pressure until the autoclave reaches its peak positive pressure or vented to the outside atmosphere. When pressure is applied the process kind of works in reverse of the original vac bagging. If that makes any sense

Also think of this. How would you heat it if it were a vacuum?

that a cool website on the 787 by the way. Its amazing the fuselage parts are built all around the world then brought together in WA. Thanks.

Dave,

A few years back we used autoclaves to laminate printed circuit boards used in all elecronics euipment.
we would use C stage core material(cured) with the copper circuits on it and bond them together using B stage pre-preg sheets.
We would lay them up in steel fixture plates to maintain registration of all the layers and then vacuum bag them and then put many of these fixtures iinto the autoclave and pull vacuum and then heat CO2 or nitrogen to about about 350F to make the pre-preg flow and cure. we also also post bake the boards in a std oven for final cure
This was just a simple version of what we did.

One of the advantage of the autoclave for us was that we could laminate different size fixtures in the same press load.
but the autoclaves never really caught on with the PC industry
Prior to Autoclaves and today we use a vacuum assisted Hyd press using heat and pressure to laminate the PC together.
Sorry running off at the fingers
Thank you
Jim

Last edited by dammmagnum; 10-13-2009 at 06:19 PM.
dammmagnum is offline  
Reply With Quote
Old 10-13-2009, 06:38 PM
  #52
Neno the mind boggler
VIP Member
Trade Score: (1)
 
glassdave's Avatar
 
Join Date: Sep 2001
Location: toledo oh
My Boats: Batboat, 38 Scarab Thunder, 16 Sidewinder, 27 Magnum
Posts: 12,667
Default

I've heard of some inert gasses being used in other industrial autoclave processes for the pressure side. Theres all kinda uses for these things.
__________________
Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
glassdave is offline  
Reply With Quote
Old 10-13-2009, 11:44 PM
  #53
Registered
 
Join Date: Sep 2006
Location: CHICAGO
My Boats: 1991 cigarette 42' revolution with 3-750 hp hawks and ssm drives,2009/1979 cig 35' mistress [for sale]
Posts: 700
Default

how thick is the hull when done?,,and how thick are the sheets of cf?,,how many layers?
dmaxx3500 is offline  
Reply With Quote
Old 10-14-2009, 12:09 AM
  #54
Registered
 
dammmagnum's Avatar
 
Join Date: Jan 2003
Location: Danville, CA
My Boats: Magnum Sport -27 Sport
Posts: 797
Default

Quote:
Originally Posted by glassdave View Post
I've heard of some inert gasses being used in other industrial autoclave processes for the pressure side. Theres all kinda uses for these things.
Dave

Yes, we used either CO2 or Nitrogen
which was a pain as we had to have large storage tanks, plus both CO2 and Nitrogen are super cold and then have to heat them using a electric heating element to 350F,, the heat rise was fairly slow

Thank you
jim
dammmagnum is offline  
Reply With Quote
Old 10-14-2009, 02:31 AM
  #55
Registered
Trade Score: (3)
 
Join Date: Apr 2006
Location: Toledo Oh
My Boats: 22 Avanti, 25 Nova, 2 turtle doves and a partridge in a pear tree,SBYC
Posts: 8,665
Default

Quote:
Originally Posted by glassdave View Post

that a cool website on the 787 by the way. Its amazing the fuselage parts are built all around the world then brought together in WA. Thanks.


great thread by the way.

I saw that on 60 minutes a while ago...boeing actually wants to bring the manf. back to the states..to many issues with tolerances/qc etc. They figure the decreased costs of less problems will negate the costs of us manf. some things are just to sensetive to outsource.
phragle is offline  
Reply With Quote
Old 10-14-2009, 05:45 PM
  #56
Platinum Member
Platinum Member
Thread Starter
 
animalhouse's Avatar
 
Join Date: Oct 2003
Location: Warwick, RI
Posts: 985
Default

More stringer install
Attached Thumbnails
The Birth of a Race Boat-100_0289.jpg   The Birth of a Race Boat-100_0291.jpg   The Birth of a Race Boat-100_0292.jpg  

The Birth of a Race Boat-100_0293.jpg  
animalhouse is offline  
Reply With Quote
Old 10-14-2009, 05:59 PM
  #57
Platinum Member
Platinum Member
Thread Starter
 
animalhouse's Avatar
 
Join Date: Oct 2003
Location: Warwick, RI
Posts: 985
Default

Cockpit completion and roll bars for canopy
Attached Thumbnails
The Birth of a Race Boat-100_0295.jpg   The Birth of a Race Boat-100_0290.jpg   The Birth of a Race Boat-100_0294.jpg  

The Birth of a Race Boat-100_0296.jpg   The Birth of a Race Boat-100_0297.jpg  
animalhouse is offline  
Reply With Quote
Old 10-14-2009, 06:00 PM
  #58
Platinum Member
Platinum Member
Thread Starter
 
animalhouse's Avatar
 
Join Date: Oct 2003
Location: Warwick, RI
Posts: 985
Default

check out the carbon seats and the recessed rear seats. The aluminum is in there for harnesses.
Attached Thumbnails
The Birth of a Race Boat-100_0298.jpg   The Birth of a Race Boat-100_0299.jpg  
animalhouse is offline  
Reply With Quote
Old 10-14-2009, 06:19 PM
  #59
LOOK AT THE LEAD NOW!!!!!
Platinum Member
 
DPT MOTORSPORTS's Avatar
 
Join Date: Mar 2002
Location: Beachwood, NJ
My Boats: boatracing,motorsports,boating
Posts: 3,967
Thumbs up

Just curious on what materials you guys are usung for the stringers?

Thanks,
DPT
DPT MOTORSPORTS is offline  
Reply With Quote
Old 10-15-2009, 08:44 PM
  #60
Platinum Member
Platinum Member
Thread Starter
 
animalhouse's Avatar
 
Join Date: Oct 2003
Location: Warwick, RI
Posts: 985
Default

Laminating the rest of the stringers, that solid sheet is ready to be cut up for bulkheads, and finally Joe checking out the progress.
Attached Thumbnails
The Birth of a Race Boat-100_0300.jpg   The Birth of a Race Boat-100_0303.jpg   The Birth of a Race Boat-100_0307.jpg  

The Birth of a Race Boat-100_0304.jpg   The Birth of a Race Boat-100_0305.jpg  
animalhouse is offline  
Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 07:27 AM.


Copyright 2011 OffShoreOnly. All rights reserved.