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Thread: Pretty welds
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9th July 2011, 01:11 PM #31
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Just curious but what do you mean by this? To me a novice most of the welds on the first few pages look perfect or am I missing something?
Originally Posted by spooled
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14th July 2011, 10:19 PM #32
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A lot of the welds, especially the 'weave' tig were heavily undercut and underfilled, It was explained somewhere that this is to increase the radius of the weld... Originally Posted by Ch4iS
The mig welds had me cringing, but I am no racecar builder and from the thread it seems that these things hold up sooo who am I to say!
I was always under the impression that cromoly tube was second pass capped to help spread the HAZ and avoid cracking associated with the small HAZ seen with tig? Not that I have a lot of experience welding cro moly (specifically round bar welded to plates etc making jigs for which a tig root run and stick cap was made...)
The guy that was making the fuss about the improper technique posted up some of his welds eventually, and I would have called them for perfect in appearance, what every mig welder should strive for.
On the other hand, a LOT of those racecar guys have some very tight technique going there!
Ben
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15th July 2011, 02:37 PM #33
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Just went and had a look back through some of my work pics, found one I liked, I think I am too hard on myself sometimes....
Pretty easy to achieve with a pulse tig and positioner though. 38mm tube welded into a 2" BSP bush, all 316. No filler was harmed in the making of this weld...
Attachment 176206
