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From: Richard Smith <null@void.com>
Newsgroups: rec.crafts.metalworking
Subject: Re: tack weld SMAW 6010 cellulosics - yes!
Date: Fri, 06 Jun 2025 20:45:27 +0100
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Bob La Londe <none@none.com99> writes:

> On 6/6/2025 2:02 AM, Richard Smith wrote:
>> Hello everyone
>> Decades after first mention of tack welding with SMAW 6010's, on then
>> welding newsgroup and on r.c.m., I tried - and am bowled-over!
>> In Britain almost no use of 6010's and 6011's.
>
> I think that is in part because 6010 doesn't run on all the machines
> that could fly through 6013 and 7018.  Only in recent years have I see
> mif price import machines able to run 60610 reliably, and some of them
> have shown mixed results from one machine to the next of the same
> model.   I can't speak to older transformer machines.  My Lincoln
> cracker box barely ran 7018 well.  My only other transformer machine
> is the Miller MIG box.  WEll I do have an ancient Hobart (Real Hobart,
> not Miller Hobart) generator welder, but my dad parked it decades ago
> when it melted its starting battery.  I haven't got around to trouble
> shooting it.
>
>> I've used for a couple of decades of root-running.
>> "In background" a bit because my Miller Dynasty 200DX welding machine
>> won't "keyhole" with 6010.  Which was my first application of
>> cellulosic 6010's and 6011's - "keyhole" the root of a V-butt weld.
>> Well, trying to weld 10mm A/F 6mm nuts to the periphery of a 10mm
>> wall thickness tube forming the shell of my rod-mill, suddenly
>> recalled 6010's used for tacking in North America.
>> So that's "open arc" - use like a 6013 (7018 is "open arc" but very
>> close-up due to cup formation at end of rod - so not that similar)
>> Wow!
>> That was a trick I missed!
>> * instant arc-up and pool formation
>> * fluidity
>> * very "clean"
>> * fast freeze
>> * directional directable arc
>> * smooth and pleasant to use
>> 
>
> Thanks for the info.  While the odds are never zero I am unlikely to
> run 6010 any time soon.  There is always that chance.  I will have
> some questions about mid thickness overhead welding soon.
>
>> Well everyone - best wishes and thanks for all the help along the way,
>> Rich S
>
> Same to you.
>
>
> -- 
> Bob La Londe
> CNC Molds N Stuff


I forgot to mention

* almost no slag - just a bit of glassy substance - so no slag choking
  the weld area (the "fast freeze" is a corollary of this - no slag?)
  as you tack-weld

Running 6010 open-arc isn't impossibly hard on the welding machine.
The voltage when running is higher than with other rods.  Why would be a
problem for a really feeble inverter - 20 years ago some low-end ones
would only run 6013.
If run it much like a 6013, with a bit of arc length, is "just" "nice".
Never thought to do that with first learning keyholing.