luke
|
| posted on 16/4/09 at 12:40 AM |
|
|
if the gas is too high could it be having a cooling effect?
i did have it accidently without gas at one point and was still getting same results.
|
|
|
|
|
vorn
|
| posted on 16/4/09 at 02:07 AM |
|
|
Got the look of too high wire speed to me.
Cheers
Vorn
|
|
|
MikeRJ
|
| posted on 16/4/09 at 03:51 AM |
|
|
I did most of my locost chassis with a Clarke 105EN welder, and whilst it struggled a bit with 3mm plate, it made a lovely job of welding 16 gauge
RHS. Current was set to max for almost every job I used it for on the locost, only turned it down for thin body panels.
You really need to use 0.6 wire with this welder, and make sure the tip is in good condition. I never had much luck with 0.8mm, I don't think
the welders up to it. Even on my current 150Amp MIG, 0.6mm wire seems to work better on the kind of jobs I use it for.
The earth clamps on these welders are pretty flimsy, and a good earth is absolutely essential. Make sure the earth point is clean shiny metal and
that the earth clamp is really secure.
Are you using the welder on a long extension lead? This can impact weld quality.
Is the wire nice and shiny? If it's gone rusty unwind enough to expose clean shiny wire and cut off the rusty stuff.
Are you definitely getting gas through? If you hold the tip up close to your ear and squeeze the trigger very slightly you should be able to hear the
gas coming out before the wire starts spooling.
[Edited on 16/4/09 by MikeRJ]
|
|
|
frodo_monkey
|
| posted on 16/4/09 at 06:49 AM |
|
|
Go to www.mig-welding.co.uk, that forum is excellent!
The tutorials are good too, taught myself to weld from those 
"Racing is life. Anything before or after is just waiting."
|
|
|
skibum
|
| posted on 16/4/09 at 07:28 AM |
|
|
Hi There
It looks like a combination of a lack of shielding gas and wire speed set to high.
Also are you using pure C02?, I usually use a CO2/ Argon mix as i find this a better gas to wrk with
Matt
|
|
|
Mr Whippy
|
| posted on 16/4/09 at 07:44 AM |
|
|
Yikes  look at those 'welds', that pigeons got the runs…
turn the wire speed right down till it starts to pulse on and off as the wire is burnt back every time the arc strikes then gradually speed it up till
it melts at the same rate its being fed in. Your looking for around 1.5-2 inch’s a second feed rate depending on wire diameter.
Mind that if you are using it at full power you will have to stick meticulously to the duty cycle of the machine, if you don't then the welder
will fry. Best to put the welder outside in the wind (you can use the handset inside still) to help with the cooling.
[Edited on 16/4/09 by Mr Whippy]
Fame is when your old car is plastered all over the internet
|
|
|
Confused but excited.
|
| posted on 16/4/09 at 07:51 AM |
|
|
If your local tech does night school courses on welding, go.
2hrs/week for ten weeks.
I had a brilliant time, gas, stick and mig and all for £60.
Tell them about the bent treacle edges!
|
|
|
Mr Whippy
|
| posted on 16/4/09 at 08:04 AM |
|
|
quote:
Originally posted by Confused but excited.
If your local tech does night school courses on welding, go.
2hrs/week for ten weeks.
I had a brilliant time, gas, stick and mig and all for £60.
^ good advice
Fame is when your old car is plastered all over the internet
|
|
|
thunderace
|
| posted on 16/4/09 at 09:21 AM |
|
|
quote:
Originally posted by Confused but excited.
If your local tech does night school courses on welding, go.
2hrs/week for ten weeks.
I had a brilliant time, gas, stick and mig and all for £60.
^ good advice
|
|
|
02GF74
|
| posted on 16/4/09 at 09:38 AM |
|
|
is the welder know to be working?
if you are on max current, you should be blowing holes in that steel.
even without gas you should get better blobs.
most unusual.
|
|
|
luke
|
| posted on 16/4/09 at 11:10 AM |
|
|
YES YES YES!  SUCCESS!
went out with a fresh head just, set up the gas so felt like someone blowing on my hand (was originally like a tornado!) turned wire speed down to
about one and a half and went a did a belter of a weld straight away!
ok, it isnt the neatest straightest weld, but its still a weld! was so excited i had to just come tell you all :p
thanks for everyones comments last night, if it wasnt for you guys i would of given up today :p your all credits to the locost way!
|
|
|
blakep82
|
| posted on 16/4/09 at 11:15 AM |
|
|
good work
well done (or 'weld done' as my dad always says...)
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
|
|
|
BenB
|
| posted on 16/4/09 at 11:21 AM |
|
|
Show us a picture
We love welding photos!!!
If you're running a welder at the bleeding edge of performance (which sadly for a 90/100A unit is 2mm thick stuff) you need to wack it on full
wallop, pull down the wire speed and move slowly to get heat into the steel.
If penetration is still a problem it's worth investing in a new earth clamp. It's amazing what a difference that can make!!!
|
|
|
luke
|
| posted on 16/4/09 at 11:26 AM |
|
|
ooo, bens post has reminded me, i also ground the points of the welding clamp so they were shiny again.
pic in a bit if i can get them uploaded again!
|
|
|
blakep82
|
| posted on 16/4/09 at 11:27 AM |
|
|
quote:
Originally posted by BenB
Show us a picture
go on then , i've got some of my own to put up in a sec anyway
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
|
|
|
luke
|
| posted on 16/4/09 at 11:44 AM |
|
|
damn thing wont let me upload them again!
blaaaaaake
|
|
|
blakep82
|
| posted on 16/4/09 at 11:49 AM |
|
|
go on then
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
|
|
|
luke
|
| posted on 16/4/09 at 11:54 AM |
|
|
thank you!
|
|
|
blakep82
|
| posted on 16/4/09 at 11:59 AM |
|
|
 
Description
looking much better!
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
|
|
|
luke
|
| posted on 16/4/09 at 12:12 PM |
|
|
thanks blake! amazing how much a difference actually setting the welder up correctly makes!
|
|
|
speedyxjs
|
| posted on 16/4/09 at 12:43 PM |
|
|
That looks better 
Few more like that and you should be ready to make a chassis
How long can i resist the temptation to drop a V8 in?
|
|
|
flibble
|
| posted on 17/4/09 at 11:26 AM |
|
|
Deleted as didn't see the second page of replies, dohh!
PS. Nice improvement
[Edited on 17/4/09 by flibble]
[Edited on 17/4/09 by flibble]
|
|
|
