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Joes924Racer

Joined: 03 Nov 2002 Posts: 11964 Location: Oregon, Denver Colorado native!
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Posted: Mon Feb 01, 2010 5:32 am Post subject: If I bought a welder |
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What should I get tig or mig or a combo welder.
Thoughts or opinions. _________________ 1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
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Smoothie

Joined: 01 Jan 2003 Posts: 8032 Location: DE (the one near MD, PA, NJ)
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Posted: Mon Feb 01, 2010 5:50 am Post subject: |
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All depends on what you'll be welding, and how much you want to spend.
I've a mig/flux (solid wire w/gas, or flux core without gas) that can do sheet or larger - steel, stainless steel, aluminum by changing the wire and gas (and settings). It was the most versatile, and relatively inexpensive.. _________________ "..it's made in Germany. You know the Germans always make good stuff."
'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox |
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Joes924Racer

Joined: 03 Nov 2002 Posts: 11964 Location: Oregon, Denver Colorado native!
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Posted: Mon Feb 01, 2010 5:58 am Post subject: |
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I want a wire feed welder to weld aluminum and light guage steel.
I can just get a mig wire feed welder. Im thinking of a 110 mig welder.
not a harbor freight 199.99 bagger either no. What ever
I get the mig is bestr for all around autobody use. So
Im asking is a mig the best bet. _________________ 1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
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avaconirl
Joined: 25 Dec 2009 Posts: 48 Location: Ireland
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Posted: Mon Feb 01, 2010 6:37 am Post subject: |
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| Buy yourself a good quality 180 amp mig you couldn't beat it with a big stick for versatility. If you find that you want to do sexy work in stainless then you have to get a t.i.g. For this an inverter stick welder can be used with the right kit and argon gas. |
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brupska

Joined: 27 Aug 2009 Posts: 150 Location: Indiana
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Posted: Mon Feb 01, 2010 9:04 am Post subject: |
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| Do yourself a favor. Buy a good quality welder if you want to weld aluminum. If you want to weld Alum. with a mig you will need a 240V welder with high amps. I have a Hobart 135 120volt one and it will not weld Alum. You need high amps because alum. is a very good condutor and I don't have enough. I have never used a Tig welder but they are better for welding alum. . A mig is much easier to weld with though. I can weld just about anything up to 1/4 inch steel with mine. So do a lot of research before you buy. Ask a local welding shop and tell them what you want to do with it. |
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PORSCHEV

Joined: 02 Nov 2002 Posts: 1901 Location: Cedar Lake Nova Scotia, Canada
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Posted: Mon Feb 01, 2010 9:10 am Post subject: |
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Buy a Miller brand mig. They can do both steel and Aluminum if you get the right model. I can tell you right now it is expensive. You need to have 2 kinds of gas to weld both. You need blueshield (argon and Co2 mix) and then you need pure argon for aluminum.
Don't buy a welder where they try to "push" the aluminum wire through the lead like steel. It is too soft and will jam all the time at the feed mech.
Any good aluminum Mig has the handle that is direct feed at the nozzle end.
I have never seen a flux core mig that welds nice yet. That is not how a Mig was designed. It was meant for an inert gas such as argon to help cool and shield the weld and keep the temperature lower to help make a stronger weld and it actually welds at a much cooler temperature. You want this for doi9ng body work.
Thats my 2 cents....had a miller for over 10 years and only had to put wire in it. Never a break down! _________________ 1976 924
5 lug conversion, 17'C2 wheels,custom body work,327 vette engine.
1978-#53 "D" track racer. |
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Min

Joined: 04 Nov 2002 Posts: 2368 Location: Vernon, British Columbia, Canada
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Posted: Mon Feb 01, 2010 10:49 am Post subject: |
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If your mostly welding thin gauge metals, just get yourself a oxy-acetylene torch. Makes beautiful welds in steel and aluminum (with the correct flux and procedure). They don't call the torch the poor man's tig for nothing.
Min _________________ Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting. |
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Joes924Racer

Joined: 03 Nov 2002 Posts: 11964 Location: Oregon, Denver Colorado native!
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Posted: Mon Feb 01, 2010 2:03 pm Post subject: |
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Learned on a oxy-acetylene torch in high school dont want to go that way.. borrowed a friends wire feed mig a few years back liked that alot..
dont have a ton of money would like to weld aluminum and steel im
thinking of building a turbo kit this summer. Have been looking at bassgts work and like what he has done alot. _________________ 1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
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Joes924Racer

Joined: 03 Nov 2002 Posts: 11964 Location: Oregon, Denver Colorado native!
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Posted: Mon Feb 01, 2010 2:35 pm Post subject: |
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From what ive searched for I need a 130 to 150 amp 30 %
duty cycle mig welder, that should handle everthing I want to do. _________________ 1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
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Fifty50Plus

Joined: 28 Feb 2008 Posts: 1422 Location: Washington DC area
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Posted: Tue Feb 02, 2010 1:17 am Post subject: |
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+1 on the Miller MIG. I've used Miller and Linde in the past and bought my own Miller. I also had a small 110 volt MIG that barely worked. The Millers have a nice aluminum feed attachment that works very well. Don't bother with the tall gas cylinder unless you are doing a lot of production welding on a daily basis. Get the little 3 foot cylinder with argon/CO2 and another argon only if you are doing aluminum.
Chuck _________________ 1979 924 NA race car H-Prod SCCA
1982 924 NA race car - Sold
1981 924 Turbo sold
1982 924 Turbo sold
1972 911 E race car - traded for Cayenne Diesel
1975 914 1.8 Building for H-Prod SCCA |
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wombat
Joined: 07 Jun 2008 Posts: 422 Location: Melbourne, Australia
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Posted: Fri Feb 05, 2010 2:44 am Post subject: |
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| PORSCHEV wrote: | | Buy a Miller brand mig... Don't buy a welder where they try to "push" the aluminum wire through the lead like steel. It is too soft and will jam all the time at the feed mech...I have never seen a flux core mig that welds nice yet. |
agree with all this. Miller is great but expensive. For welding Ali expensive is going to be the best but perhaps not the only way.Ali welding is not as hard as many people thing but it does take the right set up and lots of practise. I once saw a guy brought in to run some welds into the body of a Honda NSX and leant a lot from him, the best welder I have ever seen and he made ali welding look easy.
Selecting a welder for ali you dont have to rule out a smaller compact unit it just depends on what you want to do. It is possible to do smaller stuff with a 115v unit anything from 22 to 12 gauge will be fine and you could probably go up to 1/8" or slightly higher with a little preheating but you need to be careful when doing this that you dont heat too much, I cant give you a max temp to heat to because I am not sure of it, but you should be able to look it up if you need to. For anything thicker than this you will need a 230V unit, again with preheating you should be able to go right up to around 1/4" with a 230V unit. You only really need a 200 amp output if you are going to be doing lots of ali welding on a regular basis, smaller units should be ok for occasional ali work. You also need to decide between continuous or tapped voltage control. Continuous gives you more adjustability and finer controll but is going to be more expensive, Tapped should be fine if you are looking to keep the price down and some guys find having less controll easier anyway, tapped should be fine for most things.
here are a few of my tips to help you start. Ali wire is softer than standard steel wire,therefor it is more difficult to feed, be careful and take note here, while welding, keep the gun cable as straight as possible to minimize restrictions on the wire, a bend in the gun cable can make the ali wire kink. Also throw out all you know about steel wire diameters and machine settings and re learn them for aluminum as they will be totally different. Finallly practise practise and practise.
Hope this helps _________________ 1977 924 2.0 Auto |
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Joes924Racer

Joined: 03 Nov 2002 Posts: 11964 Location: Oregon, Denver Colorado native!
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Posted: Fri Mar 04, 2011 4:31 pm Post subject: |
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Well I found a welder its a power mig 130
made buy astro power it some with a bottle.  _________________ 1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.
Last edited by Joes924Racer on Thu Dec 22, 2011 12:27 pm; edited 1 time in total |
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Scorpio

Joined: 05 Jul 2007 Posts: 1957 Location: Brisbane, Australia
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Posted: Fri Mar 04, 2011 8:29 pm Post subject: |
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be careful with mig and going high amps....i did just that, didnt do my homework and found out that its lowest current setting still blew holes in thin sheet _________________ 1979 NA
MS1..EFI..
GARRETT T25 TURBO
BILSTEIN SHOCKS
GT BASED CUSTOM BODYKIT
Brisbane , Australia
Think mean think fast
all youll see is
my Porsches Arse!!! |
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924RACR

Joined: 29 Jul 2001 Posts: 9076 Location: Royal Oak, MI, USA
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Posted: Fri Mar 04, 2011 10:46 pm Post subject: |
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Lincoln has some pretty good deals going at the moment - though they just upped their prices March 1. In particular, most products will come with a rebate you can credit towards a helmet or other related stuff.
I just picked up a Squarewave 175 TIG from them; rebate is going for a cart worth over $200...  _________________ Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype |
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joecitizennn

Joined: 12 Sep 2005 Posts: 2096 Location: no mans land
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Posted: Sat Mar 05, 2011 6:06 am Post subject: |
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You dont have a welder? I thought everybody had one. _________________ 87 924s
88 924SE gone
447 hp cgt clone
87 924S gone
84 944 sold
83 944 sold
89 turbo S LSD, ABS etc
86 951 white rocket
85 944 sport everything.
84 944 sold.
87 944 sold |
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