> Louvers - Page 5 - All MetalShaping <
All MetalShaping

Go Back   All MetalShaping > Metal Shaping Projects > Automotive Projects
  Today's Posts Posts for Last 7 Days Posts for Last 14 Days  

Reply
 
Thread Tools Search this Thread Display Modes
  #41  
Old 02-23-2016, 11:08 PM
Joe Hartson's Avatar
Joe Hartson Joe Hartson is offline
Administrator
 
Join Date: May 2009
Location: Pass Christian, MS
Posts: 4,873
Default

Robert, I have not used Neil Dunders louver tooling. My tries have been with home made dies without a lot of luck with louvers on a radius surface.

I like what you are doing, looks like it will probably work. Will wait to see the results you get. I really like your clamp and guide system, at some point I will build something like yours.

I really enjoy your posts and learn from them, thanks for sharing your work with us.
__________________
Joe Hartson

There is more than one way to go to town and they are all correct.
Reply With Quote
  #42  
Old 02-24-2016, 08:40 AM
MP&C's Avatar
MP&C MP&C is offline
MetalShaper of the month 02-11
 
Join Date: Mar 2010
Location: Leonardtown, MD
Posts: 1,099
Default

Joe, was your issue with the louver trying to flatten out the crown or the corners of the punch leaving marks or ??


When we did the relatively flat hood sides, we experimented with the depth of the initial punch and found if you punch too much it tends to stretch the material being pushed through excessively where you get a nice wavy line that just ruined your efforts. Then we backed off this setting slightly, and it worked well. On this highly crowned panel, I would surmise that we could get away with and possibly need a bit more on that initial punch as we should need slightly more stretch given the louvers "wrap around" a radius in panel.

Thoughts?
__________________
Robert

Instagram @ mccartney_paint_and_custom
Reply With Quote
  #43  
Old 02-24-2016, 09:49 AM
Joe Hartson's Avatar
Joe Hartson Joe Hartson is offline
Administrator
 
Join Date: May 2009
Location: Pass Christian, MS
Posts: 4,873
Default

Robert, The problems with shape varied from not enough shape in the corner/ends to flat tops that didn't match of a good louver. I have to admit that I didn't spend enough time trying to resolve the problem because I wasn't for a job, I was just trying to see how radius louvers could be punched.
__________________
Joe Hartson

There is more than one way to go to town and they are all correct.
Reply With Quote
  #44  
Old 02-24-2016, 05:00 PM
Oldnek Oldnek is offline
Member
 
Join Date: Mar 2011
Location: Ulladulla, Australia
Posts: 1,178
Default

Rob!
It will be interesting to see how you tackle it, I'm also thinking it may flatten the crown.
__________________
John
EK Holden V8
Reply With Quote
  #45  
Old 02-25-2016, 09:25 PM
MP&C's Avatar
MP&C MP&C is offline
MetalShaper of the month 02-11
 
Join Date: Mar 2010
Location: Leonardtown, MD
Posts: 1,099
Default

With the wheel hub faced, the flange is trimmed...



The attachment bracket....





Pressed back together...





"test run" videos:

https://youtu.be/zsDe02QEmyo

https://youtu.be/1JB4kHLbjQc



Material clamps should be here tomorrow, so we'll try and get some louvers punched next week.
__________________
Robert

Instagram @ mccartney_paint_and_custom
Reply With Quote
  #46  
Old 03-01-2016, 10:01 PM
MP&C's Avatar
MP&C MP&C is offline
MetalShaper of the month 02-11
 
Join Date: Mar 2010
Location: Leonardtown, MD
Posts: 1,099
Default

Worked on some louvers tonight, wanted to get some practice pieces done to see how well our "theory" might fare.

Kyle cutting an inside lip off the clamp before cutting it in half..





Meanwhile I got the holes (and some spares for height adjustment) drilled in the wheel hub flange...





Clamps added...





We used a "squaring plate" to align the panel for louver angle..



The punch needed some relieving to insure the corners didn't hit the inside radius of the panel...







Cleaned up the grinder marks with a Scotchbrite pad..





Looking at the louvers...


Action shots:


https://youtu.be/EEyI10qb4BI







We have some more relieving to do on the tooling to eliminate some marking, then we'll do one more practice piece before breaking into the good stuff..
__________________
Robert

Instagram @ mccartney_paint_and_custom
Reply With Quote
  #47  
Old 03-01-2016, 10:39 PM
MP&C's Avatar
MP&C MP&C is offline
MetalShaper of the month 02-11
 
Join Date: Mar 2010
Location: Leonardtown, MD
Posts: 1,099
Default

Joe, to clarify our initial punch process, given the outward radius, we added 1/4 turn to the height adjustment. On the flat panel this much added caused the wavy punch, on this one it worked well, no waves and also didn't seem to pull in the "crown", so I'm pleased with the results..
__________________
Robert

Instagram @ mccartney_paint_and_custom
Reply With Quote
  #48  
Old 03-01-2016, 11:23 PM
Joe Hartson's Avatar
Joe Hartson Joe Hartson is offline
Administrator
 
Join Date: May 2009
Location: Pass Christian, MS
Posts: 4,873
Default

Robert, I am impressed with your progress and results so far, much better than I got. The pullmax dies look like that is the tool to use. I am sure you can work through the marking issues. Glad you don't have a pulling issue. Looking forward to seeing the next trial and what your results are. Thanks for showing you progress.
__________________
Joe Hartson

There is more than one way to go to town and they are all correct.
Reply With Quote
  #49  
Old 03-02-2016, 08:41 PM
Oldnek Oldnek is offline
Member
 
Join Date: Mar 2011
Location: Ulladulla, Australia
Posts: 1,178
Default

Robert!

Your a engineering genius.
Those louvers turned out awesome, I was wondering how you were going to get around the tight arc with tooling, but you come up trumps.......Well done.
__________________
John
EK Holden V8
Reply With Quote
  #50  
Old 03-03-2016, 05:07 PM
Charlie Myres Charlie Myres is offline
Member
 
Join Date: Jun 2013
Location: Narrogin, Western Australia
Posts: 144
Default

Really nice work Robert!

An excellent example of a master-designer at work.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 On

Forum Jump

All times are GMT -5. The time now is 01:43 AM.

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.