Go Back   EcoModder Forum > EcoModding > General Efficiency Discussion
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 12-05-2022, 04:12 PM   #11 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,497
Thanks: 8,060
Thanked 8,860 Times in 7,314 Posts
To be fair, it was a proof of concept.

It sounds like a job for dimple dies.

__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
  Reply With Quote
The Following User Says Thank You to freebeard For This Useful Post:
aerohead (12-05-2022)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 12-05-2022, 04:30 PM   #12 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,225
Thanks: 24,372
Thanked 7,357 Times in 4,757 Posts
'dimple'

Quote:
Originally Posted by freebeard View Post
To be fair, it was a proof of concept.

It sounds like a job for dimple dies.
I'd choose something more like what perforated landing platform, bell-mouthed holes are stamped with.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 12-05-2022, 07:58 PM   #13 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,497
Thanks: 8,060
Thanked 8,860 Times in 7,314 Posts
Quote:
https://en.wikipedia.org › wiki › Marston_mat
Marston Mat - Wikipedia
Marston Mat, more properly called pierced (or perforated) steel planking (PSP), is standardized, perforated steel matting material developed by the United States at the Waterways Experiment Station shortly before World War II, primarily for the rapid construction of temporary runways and landing strips (also misspelled as Marsden matting ).
I'd suspect steel strips were rolled into contour, punched and dimple died in a series of passes. Hot rod parts are one-offs.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
  Reply With Quote
The Following User Says Thank You to freebeard For This Useful Post:
aerohead (12-08-2022)
Old 12-08-2022, 02:07 PM   #14 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,225
Thanks: 24,372
Thanked 7,357 Times in 4,757 Posts
Hot Rod

Quote:
Originally Posted by freebeard View Post
I'd suspect steel strips were rolled into contour, punched and dimple died in a series of passes. Hot rod parts are one-offs.
I was referring to something that might be used to mass-produce low-loss inlet openings for the 'wall of fans.'
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 12-08-2022, 05:23 PM   #15 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,497
Thanks: 8,060
Thanked 8,860 Times in 7,314 Posts
What would that be then?

Maybe a chamfer rather than a radius?
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
  Reply With Quote
Old 12-08-2022, 05:58 PM   #16 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,225
Thanks: 24,372
Thanked 7,357 Times in 4,757 Posts
that

https://janfordsworld.blogspot.com/2...-planking.html
Quote:
Originally Posted by freebeard View Post
What would that be then?

Maybe a chamfer rather than a radius?
Whatever tooling was used to create the bell-mouthed openings in the perforated landing material, as I've already said.
Chamfers are a no-no, only a radius. I published this decades ago here at EcoModder.
Look down the throat of any carburetor on the planet and you'll see what I'm talking about.

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/

Last edited by aerohead; 12-08-2022 at 06:05 PM.. Reason: add link
  Reply With Quote
Reply  Post New Thread






Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com