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Old 05-10-2017, 06:43 PM
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Default Press Formed U-shaped Brackets for Roll Cage

Here is a set of press tooling I made to create some U-shaped brackets that clamp together a portion of the roll cage where some tubes are perpendicular to each other. This allows me to remove that portion of the rollcage.
Here's a video I put together showing how it all works.
https://www.youtube.com/watch?v=i_krzG9AEpE
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Old 05-10-2017, 07:30 PM
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Very nice!!!
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Old 05-10-2017, 09:11 PM
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Nice! I need to do something similar with aluminum, thanks.
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Old 05-20-2017, 08:01 AM
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Nice job Kent. Looks like the wheelchair ATV is coming together!


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Old 05-20-2017, 09:38 AM
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Excellent. I hope you have more opportunities to use the same die over the years.
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Old 05-20-2017, 10:07 AM
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Excellent work, though I don't think I would ever trust a friction connection in a rollover after having seen the destruction one causes first hand. I would prefer a bolted flange connection if it had to be removable.
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Old 05-20-2017, 10:19 AM
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Quote:
Originally Posted by Walker View Post
Excellent work, though I don't think I would ever trust a friction connection in a rollover after having seen the destruction one causes first hand. I would prefer a bolted flange connection if it had to be removable.


I believe he is going to weld the formed pieces to the tube, and the bolts are going to hold the two together. He is not just going to rely on the friction and tension of the bolts.


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Old 05-24-2017, 07:54 AM
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Quote:
Originally Posted by Walker View Post
Excellent work, though I don't think I would ever trust a friction connection in a rollover after having seen the destruction one causes first hand. I would prefer a bolted flange connection if it had to be removable.
I agree. If this is for racing I wouldn't do it. The cage isn't just for rollovers. A car can be flipped on the track in any kind of way and be impacted by another car at full force at any place on the cage. Even if the brackets are welded to the pipe, bolts are designed to be strong in tensile strength not shear.
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Old 05-25-2017, 08:53 PM
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Quote:
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If this is for racing I wouldn't do it.
Since it's for a very sophisticated wheelchair it probably won't be in any high speed rollovers.
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Old 05-25-2017, 09:12 PM
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I see this as being a particularly important fix for a need in this application.

I'm glad none of the engineers I know close to home had anything to do with it.

Spiffy work
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