#161
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Thanks very much John and glad it kept you reading to the end so far.
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Marcus aka. Gojeep Victoria, Australia http://willyshotrod.com Invention is a combination of brains and materials. The more brains you use, the less materials you need. |
#162
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Quote:
Will practise before the next lot though to compare. Thanks for sharing Richard.
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Marcus aka. Gojeep Victoria, Australia http://willyshotrod.com Invention is a combination of brains and materials. The more brains you use, the less materials you need. |
#163
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It's not a great shot, but the strut brace brackets are tig plug welded to the strut tops in the attached. Both the bracket and the strut top are 3.0mm. I think I made the weld hole 5.0mm for these ones. Have added a better shot of some lighter gauge stuff.
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Richard "I know nothing. I from Barcelona" (Manuel - Fawlty Towers) Link to our racecar project https://www.facebook.com/pages/Elan-...ab=public&view Last edited by skintkarter; 11-17-2014 at 04:33 AM. Reason: Better photo found |
#164
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Marcus, I really appreciate all the time you have taken to post your progress and tips and tricks. I have learned a lot, and appreciate all your designs and fabrication techniques. Very impressive!
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Will |
#165
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If you can clamp the two panels together, why not just spot weld with your tig? Get the tungsten inside the cup about an 1/8" and set your amps to around 100 (experiment a little on different thicknesses of metal). Either count the time you run the arc or if you can see the backside watch the spot starting to melt. Stop before it burns through. I don't have a picture of the welding, but I do have one of testing the weld. They are two 18ga panels where I tried to separate them with a cold chisel.
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Jim Russell |
#166
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Great thread Marcus, nice clear photos of the work at various stages. You are doing a good job of the welding and dressing out. It seems you have got a lot done in a little time.
David
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Metalshaping DVD. www.metalshapingzone.com Metalshaping with hand tools on youtube http://www.youtube.com/watch?v=IGElSHzm0q8 All things are possible. Last edited by David Gardiner; 11-17-2014 at 10:23 AM. |
#167
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Nothing much to show this time but thought I would share what I have been up to all the same.
OK, found a problem after welding in the brace. I had pressed in some curve through the middle of the brace along the top flange as thought it would bend with the plug welds. Thing was it didn't move much, if at all! Tried hammering it forward while supporting the outer corners, but couldn't move it far enough. It needs to be straight as the rear window just above it has flat glass in it. So did the old run a mig weld bead trick to get some heat concentrated on the convex side of the brace to make it shrink there and flatten it out. Can see how much it has moved by the rippling in the panel. There were a couple of spots that didn't go quite far enough. So rather than adding more mig weld on top of what was there, I heated the existing weld with my tig and that worked. Maybe next time I might try using the tig straight off as the heat source as there would be less grinding. I think you would still have to add a bit of filler so you don't leave a trough or burn through. So ground the weld out and then got the panel straight again. Used the shrinking disc mainly and a bit of hammer off dolly work. Not on dolly as that would only stretch it more. Now to get the rest of the panel straight too. Can see here the dip. I would mark the back of the dip, which is a bulge on the other side of the panel, with some chalk and then run the shrinking disc over it, then use compressed air to cool it straight away. As you can see the dip is gone now. I do find it works better for me to heat the convex side as it will pull away when the shrinking happens. If you go a bit too far, can then heat on the other side to bring it back again. I only heat until straw colour, or until you feel it start to move if earlier. Then quickly hit it with the compressed air while the disc is slowing down and until stopped. That is usually the point where you can touch it with a bare hand. Some areas will move faster than others, so it is a bit of trial and error. Spent quite a bit of time going over the panel with a straight edge that covered the whole length to get it as best possible.
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Marcus aka. Gojeep Victoria, Australia http://willyshotrod.com Invention is a combination of brains and materials. The more brains you use, the less materials you need. Last edited by Gojeep; 08-02-2017 at 04:02 AM. |
#168
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Great thread, Marcus
and a nice bit of welding and hammering over those contours most impressive !
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Mark |
#169
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Thanks very much Mark.
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Marcus aka. Gojeep Victoria, Australia http://willyshotrod.com Invention is a combination of brains and materials. The more brains you use, the less materials you need. |
#170
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Can you post a close up picture of your hammer holders? It looks like a repurposed flange??
Thanks!
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Brad Currently working on a new garage for the tools... Also a member on garagejournal.com |
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