Printable Version | Subscribe | Add to Favourites
New Topic New Poll New Reply
Author: Subject: Welding
scootz

posted on 14/8/08 at 07:06 PM Reply With Quote
Welding

What's the max thickness of mild steel that can (should!) be welded with a 105 mig?
View User's Profile View All Posts By User U2U Member
Peteff

posted on 14/8/08 at 07:12 PM Reply With Quote
About 3mm flat out.





yours, Pete

I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.

View User's Profile View All Posts By User U2U Member
Ben_Copeland

posted on 14/8/08 at 07:15 PM Reply With Quote
The stats on the SIP Trade Weldmate T105P - Gas

Says 4.5mm mild steel.





Ben

Locost Map on Google Maps


Z20LET Astra Turbo, into a Haynes Roadster

Enter Your Details Here
http://www.facebook.com/EquinoxProducts for all your bodywork needs!

View User's Profile View All Posts By User U2U Member
mr henderson

posted on 14/8/08 at 07:18 PM Reply With Quote
If you grind a v shape into the join you can increase the depth you can safely weld to, maybe make more than one pass is necessary.

John






View User's Profile View All Posts By User U2U Member
scootz

posted on 14/8/08 at 07:20 PM Reply With Quote
Ta!
View User's Profile View All Posts By User U2U Member
MikeR

posted on 14/8/08 at 07:52 PM Reply With Quote
instead of doing multiple passes, do the christmas tree technique.

Basically you're doing triangles, (this might not explain well).

start at the left of the vee and fire up the welder, pool some weld, now move to the right side, pool some weld, move forwards and to the middle to make your triangle, pool some weld.

Now, move down half the distance you've just moved forwards and out to the left side. Pool some weld, move to the right side, pool some weld, move forwards and to the middle, pool some weld.

Hopefully you can see you're doing overlapping triangles. This technique should be used for welding verticals but it works like this as well. It puts a lot of heat into the piece as you never turn the welder off, its continuously on (which may be a bad thing if you're worried about heat affected zone).

If you leave a 1mm gap between bits to be joined you'll also find you get good penetration both sides as the weld will creep through.

ps when i say pool the weld i mean hold the weld at that point for a second, not start welding, wait, move the nozel start welding wait.

View User's Profile View All Posts By User U2U Member
thunderace

posted on 14/8/08 at 08:23 PM Reply With Quote
www.mig-welding.co.uk
View User's Profile View All Posts By User U2U Member
mr henderson

posted on 14/8/08 at 08:32 PM Reply With Quote
quote:
Originally posted by thunderace
www.mig-welding.co.uk


Put an http etc in front of the www, and you get a clickable link

http://www.mig-welding.co.uk

[Edited on 14/8/08 by mr henderson]






View User's Profile View All Posts By User U2U Member
BenB

posted on 15/8/08 at 08:28 AM Reply With Quote
You can weld super thick metal with a poxy little welder but it'll take shed loads of passes and the duty cycle of weaker welders isn't that great so you'll need to give it a breather every couple of minutes!!! (that's assuming you can notch it anyway)...
View User's Profile Visit User's Homepage View All Posts By User U2U Member
Dangle_kt

posted on 15/8/08 at 09:55 AM Reply With Quote
make sure you TEST your welds, there is the potential that it will look great but have very poor peneration - practise lots, destroy lots and then decide whether to trust your life to some structural welds.






View User's Profile Visit User's Homepage View All Posts By User U2U Member

New Topic New Poll New Reply


go to top






Website design and SEO by Studio Montage

All content © 2001-16 LocostBuilders. Reproduction prohibited
Opinions expressed in public posts are those of the author and do not necessarily represent
the views of other users or any member of the LocostBuilders team.
Running XMB 1.8 Partagium [© 2002 XMB Group] on Apache under CentOS Linux
Founded, built and operated by ChrisW.