[zank]

First welds of 2014. Happy new year!


Derek G by Zanconato Custom Cycles, on Flickr


Derek G by Zanconato Custom Cycles, on Flickr


Derek G by Zanconato Custom Cycles, on Flickr


Derek G by Zanconato Custom Cycles, on Flickr

[awill4wd]

Zank, am I correct in assuming the tubing is 4130 Cr/Mo?
If so, What do you use to linish the tubing with as all the 4130 we use has a slight coating over it?
Regards Andrew from Oz.

[zank]

Hi Andrew,
Some of the tubing I use is 4130, but most of the high end bicycle tubing has less carbon and some other elements added compared to 4130. These other constituents tighten up the grain structure and give the steel more strength. The tubes are also drawn with thicker walls on the ends of the tube and thinner walls in the middle to cut down on weight. One of the final steps most of the mills that make bicycle tubing do is polish the outside. There is still mill scale on the inside, and that has to be removed about an inch or so in prior to welding. You want to make sure you have shiny metal inside and out. Some of the tubing I use is straight gauge 4130, and the mill scale on the exterior that's in proximity to the weld needs to be removed.
Mike

[zank]

Case of the Mondays by Zanconato Custom Cycles, on Flickr


Dave R by Zanconato Custom Cycles, on Flickr

[AKweldshop]

Sorry if you've answered this before, Do you "purge"????
If so, why?

[zank]

Yes, I backpurge the tubes. At 0.024" wall on some of the tubes, I think it's a good best practice.

[AKweldshop]

does purge help with that "sugar steel/oxidation" etc, you know what I mean

[zank]

Oh yeah. A ton. You look inside a frame and it's bright, shiny, smooth, and no color.

[AKweldshop]

Okay, good to know....
Thanks,
John

[zank]

A little titanium today.


Titanium by Zanconato Custom Cycles, on Flickr

[TTaylor]

Just going back and forth on some ~1/8" plate...

[Dugg]

A pix of the frame of my garage potato....Ooops, I mean my rod project.
The tubes welded through the frame rail are stainless and I'll polish the insides of the tubes after the frame is painted.
I make my stuff a tad more complicated so no one thinks I bought it at J.C Whitney.

[JDIGGS82]

IMG_20140121_161539.jpg (46.24 KiB) Viewed 3316 times

some cross members i did https://www.youtube.com/watch?v=0VzM3W228j4

[zank]

More of the usual.


Derek G by Zanconato Custom Cycles, on Flickr

[countryboy1127]

Seal welded some winch mounts

[countryboy1127]

Got to weld a little stainless today

[RichardH]

3/16" x 1-1/2" mild steel, TIG, 145A peak, 1/8" 2% Lanth, 3/32" ER70S-2. Some welds came out better than I deserve. The ones visible here are more typical for me - more practice is needed, which was half the reason for the project. Getting the inside corner of the angles clean was a real chore, and it shows in the welds.

Reason for the odd mounting pegs is so the saw can be easily moved between this stand in the shop and an aluminum sawhorse that Dewalt sells as a portable stand. That stand is 5" wide with a 1/2" bullnose, so 1/2" rod worked great here.

Saw Stand.jpg (69.32 KiB) Viewed 2766 times

Saw mounts detail.jpg (44.64 KiB) Viewed 2766 times

Saw Mount.jpg (57.54 KiB) Viewed 2766 times

I had the benefit of using a StrongHand table for this project, and man is it nice!

I posted more detail on this project here: http://www.instructables.com/id/Steel-S ... Miter-Saw/

Cheers,
Richard

[weldin mike 27]

Hey,

Dont be too hard on your self for yhe welds inside the angle iron. Its quite difficult. One of those things that learning to weld with both hands will help. When in a tight spot, I put the tig torch in and weld out.

Mick

[RichardH]

Thanks, Mike.

Yeah, I'm taking it in stride. I'm actually really pleased with the results, considering my experience level - I just have a lot of practical skill to gain. The welds here are very functional, not too ugly, and I'm downright tickled that the project came out square and flat.

Cheers,
Richard

[weldin mike 27]

Hey,

No worries mate,

Thats the main point isnt it. Keep up the practice, and showing off the cool jobs.

Mick

[jumpinjackflash]

Finally done !!!! Everyone should make one engine mount that welds. Man did I learn a ton. Not the prettiest welds I can do. A lot different than just running beads on a tube for sure. A retired welding instructor told me that he would fly behind it no worries. A relief for me to have it inspected thoroughly firsthand. Now I can finish my engine , blast and get some epoxy / paint on this thing this weekend. What do you think ? I think it will do OK for me. I know I should have better bead placement, but it is harder than you think tying .035" up to a .090" washer and not blow the tube! A great learning experience for me. Thanks to all here who helped me a ton !

[zank]

Had the opportunity to try a Dynasty 200DX today. It was my first time with an inverter. I was blown away. The control was amazing. The starts had that nice snap. My machine never starts that easy or quickly. I didn't have a lot of time or material, so I only got to try a couple of setting on the aluminum. Settled in at a balance of 65% EN and a frequency of 100 Hz. This is 7005 tubing and 5183 filler. The tubing is about 0.060" wall and the threaded shell is about 0.120" thick.


Trying out a Dynasty by Zanconato Custom Cycles, on Flickr

On the steel, I wanted to try high speed pulse. I set the machine to 250 pps, 40% peak time, and 25% background. I was amazed with the control, especially on the edges. This joint is a 0.028" wall tube butted against a 0.055" wall tube. Except for the horrible restart in the middle, I felt like I could put the puddle anywhere I wanted.


Trying out a Dynasty by Zanconato Custom Cycles, on Flickr

I'm totally sold. I'm saving for a new machine.

[AKweldshop]

That's beautiful.

~John

[zank]

Thanks, John!

[countryboy1127]

At first I think I have a pretty weld and then Zank post his pictures lol .just kidding but really nice welds . What amps were you set at for the aluminum ans steel ? If dont mind me asking