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The what I welded today (/whenever) thread (pics please)

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Re: The what I welded today (/whenever) thread (pics please)

Postby zank » Thu Aug 10, 2017 8:45 pm

A few from the week. The first ones were tough. The main tubes were 0.6 mm (0.024") wall. A little nerve racking!

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Stephen S by Mike Zanconato, on Flickr

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Stephen S by Mike Zanconato, on Flickr

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Stephen S by Mike Zanconato, on Flickr

The rest were a little more chill. Typical 0.7 - 0.8 mm wall.

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Bill S by Mike Zanconato, on Flickr

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Rich R by Mike Zanconato, on Flickr

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Dan A by Mike Zanconato, on Flickr

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Rich R by Mike Zanconato, on Flickr
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Re: The what I welded today (/whenever) thread (pics please)

Postby Coldman » Thu Aug 10, 2017 9:38 pm

Beautiful work as usual Zank!
0.6mm is gettin pretty thin. How does it go for strength, is there a weight limit for the rider?
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Re: The what I welded today (/whenever) thread (pics please)

Postby VooDoo » Fri Aug 11, 2017 5:24 am

Wall thikness dosent efect on the strenght of the pipe, only material and outside diameter. You can apply the same force in pipe or axle... until there is a litle dent in the pipe.


i have made controllarms for race cars with 0.8mm wall thikness pipe, material 4130. Worked great. Cant take any dents, but is same for the stiffness than hevier wall pipe.
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Re: The what I welded today (/whenever) thread (pics please)

Postby Coldman » Fri Aug 11, 2017 5:33 am

Well you're wrong about that. You're just operating at a lower factor of safety. If you did the strength calculations you would know this to be true.


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Re: The what I welded today (/whenever) thread (pics please)

Postby VooDoo » Fri Aug 11, 2017 12:58 pm

Thats true that the longevity of the part goes down with thin wall, but dosent effect the torsional stiffness much. Not problem @ racing (cars.. bikes..)
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Re: The what I welded today (/whenever) thread (pics please)

Postby Otto Nobedder » Fri Aug 11, 2017 4:14 pm

Yeah! We got our ASME "R" stamp qual yesterday. This li'l root pass was enough to send the fire marshal and board inspectors over the edge. I then went to lunch with them and the bosses and stuffed myself full. Great bunch of folk.
It'll be 3-4 weeks before we have our certificate and stamp, but code work can proceed.

Steve
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Re: The what I welded today (/whenever) thread (pics please)

Postby Coldman » Fri Aug 11, 2017 7:16 pm

Great news Steve, well done. I recon the feeling might better than a standing ovation.


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Re: The what I welded today (/whenever) thread (pics please)

Postby Poland308 » Fri Aug 11, 2017 11:18 pm

Well done!
I have more questions than answers

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Re: The what I welded today (/whenever) thread (pics please)

Postby LtBadd » Sat Aug 12, 2017 6:28 am

Congratulations Steve
Richard

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Re: The what I welded today (/whenever) thread (pics please)

Postby OzFlo » Sun Aug 13, 2017 8:29 pm

Well done Steve! :D
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