 Welding advice, Can a cheap flux welder do what I need? |
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| Deusexmachina77 |
 Nov 25 2023, 11:24 AM
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#1
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Member  Group: Members Posts: 98 Joined: 30-March 22 From: Chicago Member No.: 26,426 Region Association: Upper MidWest 
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I have to weld in a new front trunk pan replacing the hole left from an AC unit. I have taken two MIG classes. Beside being a newbie, I have other limitations to consider.
I don’t have access to a 220 line. I’m inexperienced. It would cost me $1000 to have it professionally done. And I don’t want to buy a bunch of equipment for one job. Can I use a flux welder? There a couple cheap units at Harbor Freight (under $150) on sale right now. What don’t I know that I should know? Thanks (IMG:style_emoticons/default/welder.gif) |
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| 914rrr |
Dec 15 2023, 07:59 PM
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#2
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Senior Member Group: Members Posts: 1,896 Joined: 1-July 03 From: Knoxville, TN Member No.: 874 Region Association: South East States |
Is flux welding more apt to have paint adhesion issues vs MIG? IIRC, one of my first 914's had a what looked like a rust spot in the drivers side front fender near the bottom. When we started grinding it, we discovered it had been repaired / patched already and welded (brazed) with brass. I was told that unless you are meticulous in removing every bit of flux then then the body filler and paint wouldn't stick to it properly. Is this correct?
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| 930cabman |
Dec 16 2023, 08:55 AM
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#3
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Advanced Member Group: Members Posts: 4,123 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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QUOTE(914rrr @ Dec 15 2023, 08:59 PM)  Is flux welding more apt to have paint adhesion issues vs MIG? IIRC, one of my first 914's had a what looked like a rust spot in the drivers side front fender near the bottom. When we started grinding it, we discovered it had been repaired / patched already and welded (brazed) with brass. I was told that unless you are meticulous in removing every bit of flux then then the body filler and paint wouldn't stick to it properly. Is this correct? Not only flux, but any contaminant. painting is all about prep and it can be anything |
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| 914rrr |
Dec 16 2023, 09:42 AM
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#4
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Senior Member Group: Members Posts: 1,896 Joined: 1-July 03 From: Knoxville, TN Member No.: 874 Region Association: South East States |
QUOTE(930cabman @ Dec 16 2023, 09:55 AM) QUOTE(914rrr @ Dec 15 2023, 08:59 PM) Is flux welding more apt to have paint adhesion issues vs MIG? IIRC, one of my first 914's had a what looked like a rust spot in the drivers side front fender near the bottom. When we started grinding it, we discovered it had been repaired / patched already and welded (brazed) with brass. I was told that unless you are meticulous in removing every bit of flux then then the body filler and paint wouldn't stick to it properly. Is this correct? Not only flux, but any contaminant. painting is all about prep and it can be anything So, is flux core welding generally a bad idea for anything that will be painted, especially if it's on an exterior body panel vs pans or trunk areas? |
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Posts in this topic
Deusexmachina77 Welding advice Nov 25 2023, 11:24 AM
Shivers Just patching the hole, absolutely. I do all sorts... Nov 25 2023, 11:31 AM iankarr Get a 120v Hobart Handler. U can set it up for mig... Nov 25 2023, 11:32 AM Superhawk996 May I suggest you’ve asked the wrong question. ... Nov 25 2023, 12:03 PM
930cabman
May I suggest you’ve asked the wrong question. ... Nov 25 2023, 12:35 PM Superhawk996 Looked up what is on sale
Definately don’t get... Nov 25 2023, 12:38 PM rjames Echoing the advice to look for a quality unit that... Nov 25 2023, 01:08 PM Deusexmachina77 Guys,
Thanks everyone for really good advice. I w... Nov 25 2023, 03:12 PM Superhawk996
felt I didn’t know enough to evaluate the cond... Nov 25 2023, 05:47 PM mb911 Ugh I need to do a sticky on this. Superhawk has y... Nov 25 2023, 07:54 PM bkrantz Find a friend with a welder.
Or (better) find a f... Nov 25 2023, 08:13 PM emerygt350 I have had the titanium for 4 years now. I have u... Nov 26 2023, 07:15 AM IronHillRestorations True MIG (shielding gas) is the only way to go for... Nov 26 2023, 08:12 AM stownsen914 As a self taught hobbyist welder, I'd have to ... Nov 26 2023, 08:21 AM Mayne I have a small Titanium flux core welder that has ... Nov 26 2023, 08:43 AM Spoke
I don’t have access to a 220 line.
I was worri... Nov 26 2023, 08:48 AM MikeK
I have to weld in a new front trunk pan replacing... Nov 26 2023, 10:29 AM Root_Werks That much welding, I'd use a gas shielded MIG.... Nov 26 2023, 05:32 PM mgarrison I used the HF titanium flux core welder because I ... Nov 27 2023, 12:59 PM porschetub Seems to be all about wire and feed control which ... Nov 28 2023, 03:48 PM Deusexmachina77 After much deliberation and searching, I found the... Dec 11 2023, 08:26 AM Spoke
After much deliberation and searching, I found th... Dec 11 2023, 12:19 PM 930cabman
After much deliberation and searching, I found t... Dec 11 2023, 12:26 PM Spoke
[quote name='Spoke' post='3117343' date='Dec 11 2... Dec 11 2023, 12:40 PM 930cabman
After much deliberation and searching, I found t... Dec 12 2023, 02:44 PM 930cabman "A friend with a welder and a garage" so... Dec 11 2023, 08:50 AM Superhawk996 Butt weld is the gold standard for panel repair. ... Dec 11 2023, 09:07 AM porschetub
Butt weld is the gold standard for panel repair. ... Dec 11 2023, 01:29 PM Geezer914 I picked up a used Sears flux core welder for ... Dec 11 2023, 09:13 AM MikeK There's no shame in a lap weld if the joint is... Dec 11 2023, 10:53 AM Geezer914 Trace a pattern of the cut out on a piece of poste... Dec 11 2023, 12:14 PM Superhawk996 @porschetub
Try a shrinking wheel on it to remov... Dec 11 2023, 07:22 PM mb911 Ok I have to pipe up a little bit here as I do thi... Dec 12 2023, 05:15 PM mb911 RE: Welding advice Dec 12 2023, 05:16 PM 930cabman Nothing short of artwork, thanks for posting.
Ho... Dec 12 2023, 07:14 PM bkrantz Another vote for butt welding, and you can doing i... Dec 12 2023, 09:05 PM Deusexmachina77 @mb911 That TIG weld is a thing of beauty. I only... Dec 13 2023, 04:49 PM mb911
[b]@[url=http://www.914world.com/bbs2/index.php?s... Dec 13 2023, 04:56 PM bkrantz
[b]@[url=http://www.914world.com/bbs2/index.php?... Dec 13 2023, 08:05 PM MikeK
[b]@[url=http://www.914world.com/bbs2/index.php?... Dec 14 2023, 09:48 AM mb911
[quote name='mb911' post='3117713' date='Dec 13 2... Dec 16 2023, 01:39 PM MikeK Here's an alternative method for fitting and h... Dec 14 2023, 10:10 AM 930cabman Great advice MikeK, thanks
I will making the same... Dec 14 2023, 01:01 PM mb911
[quote name='930cabman' post='3118200' date='Dec ... Dec 16 2023, 01:37 PM gereed75 It will also destroy the strength of the magnet
A... Dec 16 2023, 03:00 PM mb911
It will also destroy the strength of the magnet
... Dec 17 2023, 07:23 AM Deusexmachina77 I cut the panel to where I thought it would lay be... Dec 18 2023, 04:56 PM 930cabman
I cut the panel to where I thought it would lay b... Dec 19 2023, 07:22 AM Superhawk996 :headbanger: pretty good fit for someone that was ... Dec 18 2023, 10:43 PM mb911
:headbanger: pretty good fit for someone that was... Dec 19 2023, 06:29 AM friethmiller I remember the one problem I always had when I sta... Dec 19 2023, 08:51 AM Deusexmachina77 I appreciate the encouragement and the tip about t... Dec 19 2023, 03:35 PM r_towle never in one area too long....heat warps things. Dec 19 2023, 04:35 PM gereed75 There u go - cut and butt at its finest. Nice work... Dec 19 2023, 05:38 PM Deusexmachina77 Hello Friends,
@[url=http://www.914world.com/bbs2... Jan 4 2024, 09:14 AM friethmiller Well, that depends what you want. If you want to ... Jan 4 2024, 09:45 AM Superhawk996 Agree - don’t thin metal by grinding too much
... Jan 4 2024, 09:47 AM friethmiller
Due to all the stamping formation complexity, it ... Jan 4 2024, 10:21 AM mb911 The proper way would be to use epoxy primer then s... Jan 5 2024, 05:08 PM Deusexmachina77 That's the look I want. And you say you use be... Jan 5 2024, 05:23 PM mb911
That's the look I want. And you say you use b... Jan 5 2024, 07:49 PM Deusexmachina77
That's the look I want. And you say you use ... Jan 5 2024, 10:08 PM worn
That's the look I want. And you say you use b... Jan 5 2024, 07:51 PM mb911
That's the look I want. And you say you use ... Jan 6 2024, 05:47 AM mb911 this is mine finished Jan 5 2024, 07:51 PM mb911 RE: Welding advice Jan 5 2024, 07:53 PM flat4guy Put 2 floors, a couple quarters and many other sma... Jan 5 2024, 09:13 PM |
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