Fordmods Logo

mig welder 

 

Page 1 of 1 [ 10 posts ] 

 
 Post subject: mig welder
Posted: Thu Feb 22, 2007 9:17 am 
Stock as a Rock
Offline

Posts: 150

Joined: 30th Mar 2005

Location: geelong
VIC, Australia

hey guys i am about to start my turbo install but want to do all the piping and exaust work myself. will leave the manifold to the pros though. what i need to know is how many amp should a mig welder have to do pipe work. any other advice with buying a mig welder at all? ps i will be using 3'' stainless steel pipe
Top
 Profile  
 
 
Posted: Thu Feb 22, 2007 10:47 am 
Smokin em up
Offline

Age: 40

Posts: 227

Joined: 21st Jun 2005

Location: Melbourne: Thornbury
VIC, Australia

...then wouldn't you want a TIG to do stainless?

 

_________________

EA SVO Fairmont Ghia - Recaros, Bilsteins, Sunroof, SVO rims and body kit, Genie headers, DBA rotors. T5 steeda triax short shifter. 3.27 lsd. (EL 4.0 ported/polished, rebuilt and balanced, Dev5 cam. J3 chipped EL ecu, AU injectors).

Top
 Profile  
 
 
Posted: Thu Feb 22, 2007 11:24 am 
Stock as a Rock
Offline

Posts: 150

Joined: 30th Mar 2005

Location: geelong
VIC, Australia

lol fair enough. i have only ever welded alloy and mild steel. so a tig is the only welder i can use?
Top
 Profile  
 
 
Posted: Thu Feb 22, 2007 11:30 am 
Getting Side Ways
Offline

Age: 34

Posts: 3406

Joined: 7th Feb 2005

Ride: AU2 Ute

Location: melbourne
VIC, Australia

Cant he use a mig and stainless wire?
Top
 Profile  
 
 
Posted: Thu Feb 22, 2007 12:02 pm 
Smokin em up
Offline

Posts: 264

Joined: 19th Sep 2005

Location: Perth
WA, Australia

Get a TIG for that. You can control the weld and get nicer welds.

A mig is for rough work and gives lots of build up and splatter. Mig is alot quicker but I use it for heavier stuff.

For lighter stuff like exhaust and intercooler piping I always use TIG.

Most Exhaust guys use MIG for its speed.

 

_________________

Turbo 6s rule

Top
 Profile  
 
 
Posted: Thu Feb 22, 2007 12:41 pm 
Stock as a Rock
Offline

Posts: 150

Joined: 30th Mar 2005

Location: geelong
VIC, Australia

any idea how powerful u need to weld 2-3mm thick piping? might just end up hiring one but would be so handy to have my own.
Top
 Profile  
 
 
Posted: Thu Feb 22, 2007 9:22 pm 
Getting Side Ways
Offline
User avatar

Age: 33

Posts: 2058

Joined: 25th May 2006

Ride: ef xr8

Power: 229 rwkw

Location: Perth
WA, Australia

If you are going to use 3" stainless piping (i assume its going to be light gauge ie 1.2-2 maybe 2.4mm wall) then i wouldnt weld it with a mig unless it is a fluxcored stainless wire. If you were to weld it, It MUST be purged internally otherwise it will look like a hairy caterpillar has settled in your pipe. This is the weld metal reacting with the atmosphere (without any shielding gas internally) and is brittle and a flow restriction. And if your welding is lumpier in a few spots, it can break off and end up going down track.

I'd stay with aluminium so you can use a thicker wall pipe. Any mig can run aluminum if you use teflon liners, straight argon shielding gas. Or just go to a joint that does Marine fabrication and repairs and get em to do a quick weld here and there for a carton.

 

_________________

Because of Beer, Thirst is a Beautiful Thing!

'95 EF XR8 auto, Advance headers, 3" exhaust, Cobra manifold, BBK 75mm throttle body , 80MM Marauder MAF, Vortech V2 T Trim , 307 rwhp, 405 ft/lb 13.2 @ 105 MPH

Now N/A (permanent Lag) - AFR 165's, Comp XE270 cam, 1.6 RR - 269 rwhp 14.1 @ 102mph.

Top
 Profile  
 
 
Posted: Thu Feb 22, 2007 9:25 pm 
Getting Side Ways
Offline
User avatar

Age: 33

Posts: 2058

Joined: 25th May 2006

Ride: ef xr8

Power: 229 rwkw

Location: Perth
WA, Australia

GRN-WGN wrote:
any idea how powerful u need to weld 2-3mm thick piping? might just end up hiring one but would be so handy to have my own.


Around 22 volts depending on the mig

 

_________________

Because of Beer, Thirst is a Beautiful Thing!

'95 EF XR8 auto, Advance headers, 3" exhaust, Cobra manifold, BBK 75mm throttle body , 80MM Marauder MAF, Vortech V2 T Trim , 307 rwhp, 405 ft/lb 13.2 @ 105 MPH

Now N/A (permanent Lag) - AFR 165's, Comp XE270 cam, 1.6 RR - 269 rwhp 14.1 @ 102mph.

Top
 Profile  
 
 
Posted: Mon Feb 26, 2007 10:23 pm 
Getting Side Ways
Offline
User avatar

Posts: 1960

Joined: 6th Nov 2004

Gallery: 22 images

Power: 315 rwkw

Location: Under the flight path of incoming packpackers
NSW, Australia

Use alloy for your IC pipes, its about the same $ as stainless and get it TIG'd up at a shop... usually charge 20 per weld
Top
 Profile  
 
 
Posted: Tue Feb 27, 2007 1:21 pm 
Stock as a Rock
Offline

Posts: 150

Joined: 30th Mar 2005

Location: geelong
VIC, Australia

where did u guys get ur piping?
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 10 posts ] 

Who is online

Users browsing this forum: No registered users and 14 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Sat Dec 16, 2017 10:10 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names