General welding questions that dont fit in TIG, MIG, Stick, or Certification etc.
- weldin mike 27
-
Weldmonger
-
Posts:
-
Joined:Fri Apr 01, 2011 10:59 pm
-
Location:Australia; Victoria
Has anyone ever really misjudged the kind of metal they were welding? I saw a guy trying to weld a brass door bolt with steel wire in a mig. (I didn't realise what he was trying to do until it was too late)
I was trying to weld 4mm aluminum and had major problems getting the filler to fuse wirhout melting the base metal.
Turned out that it was 316 filler, not 4043 as the box was marked.
I should have noticed the weight diff....
Turned out that it was 316 filler, not 4043 as the box was marked.
I should have noticed the weight diff....
Pictures from my scrap collection:
http://forum.weldingtipsandtricks.com/v ... f=9&t=5677
http://forum.weldingtipsandtricks.com/v ... f=9&t=5677
exnailpounder
- exnailpounder
-
Weldmonger
-
Posts:
-
Joined:Thu Dec 25, 2014 9:25 am
-
Location:near Chicago
I accidently grabbed a silicon bronze rod to do a lap weld on mild steel. She melted in great and welded great and I never noticed until I wire brushed the weld for paint and saw the funny color. Thats what you get when you hurry.
Ifyoucantellmewhatthissaysiwillbuyyouabeer.
- weldin mike 27
-
Weldmonger
-
Posts:
-
Joined:Fri Apr 01, 2011 10:59 pm
-
Location:Australia; Victoria
I used steel wire to weld on a ss boss instead of 309. The drawing said GMAW, so I just kept ploughing on. Didn't tell me they tig them.
tried welding a crack in a honda 125 side case
thought is was aluminum, it was magnesium.
oops. later cases were aluminum..
craig
thought is was aluminum, it was magnesium.
oops. later cases were aluminum..
craig
htp invertig 221
syncrowave 250
miller 140 mig
hypertherm plasma
morse 14 metal devil
syncrowave 250
miller 140 mig
hypertherm plasma
morse 14 metal devil
So what was the problem?
Mag usually welds ok with 5356
Unless you try to gasweld
Mag usually welds ok with 5356
Unless you try to gasweld
Pictures from my scrap collection:
http://forum.weldingtipsandtricks.com/v ... f=9&t=5677
http://forum.weldingtipsandtricks.com/v ... f=9&t=5677
- TRACKRANGER
-
Weldmonger
-
Posts:
-
Joined:Wed Aug 06, 2014 12:48 am
-
Location:Melbourne, Australia
Did it do the magnesium 'bright-lights' thing?motox wrote:tried welding a crack in a honda 125 side case
thought is was aluminum, it was magnesium.
oops. later cases were aluminum..
craig
EWM Phonenix 355 Pulse MIG set mainly for Aluminum, CIGWeld 300Amp AC/DC TIG, TRANSMIG S3C 300 Amp MIG, etc, etc
andersk
every time i added filler it jumped to the electrode
as carefull a i tried.
a racing buddy who is a union welder gave me rod
(that he said was super expensive and grubby looking)
i cleaned the rod, re-ground the crack and it welded
up ok. not sure if a had enough gas coverage as the
arc seemed almost green and the weld looked dirty
as well.
craig
every time i added filler it jumped to the electrode
as carefull a i tried.
a racing buddy who is a union welder gave me rod
(that he said was super expensive and grubby looking)
i cleaned the rod, re-ground the crack and it welded
up ok. not sure if a had enough gas coverage as the
arc seemed almost green and the weld looked dirty
as well.
craig
htp invertig 221
syncrowave 250
miller 140 mig
hypertherm plasma
morse 14 metal devil
syncrowave 250
miller 140 mig
hypertherm plasma
morse 14 metal devil
It is usually some zinc in the mag alloys so you will have yellow-greenish smoke.
Pictures from my scrap collection:
http://forum.weldingtipsandtricks.com/v ... f=9&t=5677
http://forum.weldingtipsandtricks.com/v ... f=9&t=5677
andersk
its been a while since i welded the side case
but managed to find one of the rods my buddy
gave me. no markings just this grubby looking
rod.
craig
its been a while since i welded the side case
but managed to find one of the rods my buddy
gave me. no markings just this grubby looking
rod.
craig
- Attachments
-
- IMG_1591mag rod.jpg (93.22 KiB) Viewed 976 times
htp invertig 221
syncrowave 250
miller 140 mig
hypertherm plasma
morse 14 metal devil
syncrowave 250
miller 140 mig
hypertherm plasma
morse 14 metal devil
Bill Beauregard
- Bill Beauregard
-
Weldmonger
-
Posts:
-
Joined:Thu Jan 24, 2013 9:32 pm
-
Location:Green Mountains of Vermont
And I'm color blind?exnailpounder wrote:I accidently grabbed a silicon bronze rod to do a lap weld on mild steel. She melted in great and welded great and I never noticed until I wire brushed the weld for paint and saw the funny color. Thats what you get when you hurry.
I had just started and they heard I could weld alum decent so a part broke and I was called upon. I was nearing the end of my first filler rod laying a beautiful bead and a co worker handed me another rod...damn stuff just would not puddle correctly, looked all gummy I was quite puzzled. It did melt lol
Rod was 308L....so I am known as the only mech there that can weld stainless and aluminum together...lol so now as habit I tap all rods against the table first...easy test to tell the difference.
Rod was 308L....so I am known as the only mech there that can weld stainless and aluminum together...lol so now as habit I tap all rods against the table first...easy test to tell the difference.
I weld stainless, stainless and more stainless...Food Industry, sanitary process piping, vessels, whatever is needed, I like to make stuff.
ASME IX, AWS 17.1, D1.1
Instagram #RNHFAB
ASME IX, AWS 17.1, D1.1
Instagram #RNHFAB
danielbuck
- danielbuck
-
Guide
-
Posts:
-
Joined:Tue Jan 21, 2014 7:56 pm
-
Location:Gilroy, CA
I tried to bend cold rolled steel in my press brake, thought it was regular mild steel, until it cracked
- MinnesotaDave
-
Weldmonger
-
Posts:
-
Joined:Sun Oct 27, 2013 10:57 pm
-
Location:Big Lake/Monticello MN, U.S.A.
I've done that in my floor mounted bender with a hardened 3/8" rod.danielbuck wrote:I tried to bend cold rolled steel in my press brake, thought it was regular mild steel, until it cracked
Almost went over backward when it snapped in two instead of bending - oops
Dave J.
Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~
Syncro 350
Invertec v250-s
Thermal Arc 161 and 300
MM210
Dialarc
Tried being normal once, didn't take....I think it was a Tuesday.
Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~
Syncro 350
Invertec v250-s
Thermal Arc 161 and 300
MM210
Dialarc
Tried being normal once, didn't take....I think it was a Tuesday.
- weldin mike 27
-
Weldmonger
-
Posts:
-
Joined:Fri Apr 01, 2011 10:59 pm
-
Location:Australia; Victoria
What's the go with cold rolled V hot rolled? Is it just that the hot rolled is annealed? (we have very little cold rolled flat stock here in Aus. Australian made is all hot strip mill made.
exnailpounder
- exnailpounder
-
Weldmonger
-
Posts:
-
Joined:Thu Dec 25, 2014 9:25 am
-
Location:near Chicago
Apparently I'm not the only one. Im pretty sure we all screw up from time to time. ^^^^^^^^^^Bill Beauregard wrote:And I'm color blind?exnailpounder wrote:I accidently grabbed a silicon bronze rod to do a lap weld on mild steel. She melted in great and welded great and I never noticed until I wire brushed the weld for paint and saw the funny color. Thats what you get when you hurry.
Ifyoucantellmewhatthissaysiwillbuyyouabeer.
[quoteWhat's the go with cold rolled V hot rolled? Is it just that the hot rolled is annealed? (we have very little cold rolled flat stock here in Aus. Australian made is all hot strip mill made][/quote]
When they form the steel to the material form (round or square stock) at the mill there are two methods of working it. Hot working it allows the stresses to be relieved as it is worked so it does not become hard and brittle and stays tough. Cold working(cold rolling) traps the stresses inside making it very hard, strong and brittle and not so tough.
When they form the steel to the material form (round or square stock) at the mill there are two methods of working it. Hot working it allows the stresses to be relieved as it is worked so it does not become hard and brittle and stays tough. Cold working(cold rolling) traps the stresses inside making it very hard, strong and brittle and not so tough.
Return to “Welding Forum General Shop Talk”
Jump to
- Introductions & How to Use the Forum
- ↳ Welcome!
- ↳ Member Introductions
- ↳ How to Use the Forum
- ↳ Moderator Applications
- Welding Discussion
- ↳ Metal Cutting
- ↳ Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
- ↳ Mig and Flux Core - gas metal arc welding & flux cored arc welding
- ↳ Stick Welding/Arc Welding - Shielded Metal Arc Welding
- ↳ Welding Forum General Shop Talk
- ↳ Welding Certification - Stick/Arc Welding, Tig Welding, Mig Welding Certification tests - Welding Tests of all kinds
- ↳ Welding Projects - Welding project Ideas - Welding project plans
- ↳ Product Reviews
- ↳ Fuel Gas Heating
- Welding Tips & Tricks
- ↳ Video Discussion
- ↳ Wish List
- Announcements & Feedback
- ↳ Forum News
- ↳ Suggestions, Feedback and Support
- Welding Marketplace
- ↳ Welding Jobs - Industrial Welding Jobs - Pipe Welding Jobs - Tig Welding Jobs
- ↳ Classifieds - Buy, Sell, Trade Used Welding Equipment
- Welding Resources
- ↳ Tradeshows, Seminars and Events
- ↳ The Welding Library
- ↳ Education Opportunities