Thanks: 0
Needs Pictures: 0
Picture(s) thanks: 0
Results 31 to 35 of 35
-
26th May 2017, 02:44 PM #31Golden Member
- Join Date
- Jun 2007
- Location
- Vic
- Age
- 48
- Posts
- 544
I am not a welder but I think with your first weld, you moved a little too fast and current could be a little too high. The second attempt is a little low on current.
-
26th May 2017, 04:10 PM #32
Michael
While its true that a mig is useless in a breeze is also true that a Fcaw machine is useless for welding wall thickness, less than, say 2mm. Each machine and the process it operates under, shines its its own proper application.
Its horses for courses. Many buy a wire feed mis-labelled as a MIG when it is equipped initially as a FCAW machine. Its essential that someone seeking a welding machine consider the type of welding they wish to perform and buy the machine that best suits this application.
To weld in the dip transfer mode as required for welding light sheet metal, the wire needs to operate at around the 16 to 18 volt dip transfer range which suits solid wire very well.
Flux core wire is not designed to run in dip transfer mode and that is the reason why attempts to use fcaw as a substitute for welding of sheet metal thickness are met with failure.
As a (home) welding machine applied to light structural thickness it can work very well in the hands of an operator who has some understanding of the process and its techniques.
Grahame
-
26th May 2017, 05:33 PM #33China
- Join Date
- Dec 2005
- Location
- South Australia
- Posts
- 1,656
Why is this not in the welding sub forum
-
26th May 2017, 06:23 PM #34Most Valued Member
- Join Date
- Oct 2010
- Location
- melbourne, laverton
- Posts
- 1,910
-
29th May 2017, 10:07 PM #35Member
- Join Date
- May 2015
- Location
- Newcastle
- Posts
- 62
Hey Tom, for a beginner it doesn't look to bad, I'm an old boilermaker with 45 years doing all sorts of things. I use an expensive mig/tig and stick inverter but don't do much with these days. You're having a go and that's the first step. Don't be to critical, you're close to what you want, 1. Make sure your weld area is clean from rust and paint, (small welders we use at home don't like the dirt or paint). 2. Have a good earth. 3. Try to minimise the gaps while you're learning. 4. You could up your voltage just a smidge and 5. Travel a little faster when you lay your weld. It looks like most of your dags are from slow travel and nozzle gap (the gap between your nozzle and the weld). Play around with that, try changing your power setting 's a smidge up and down and your speed settings and try to close the gap a little between the nozzle and job. With a steady had and practice you'll get there. flux core has it's ups and downs but for what your doing there it's good, it does take a practiced hand to use it on smaller jobs. If yours is a newish welder it should do gas as well, but small steps are a good way to start
Similar Threads
-
Why do my welds look like this? (flux core, gasless MIG)
By NathanaelBC in forum WELDINGReplies: 15Last Post: 14th Nov 2016, 09:25 PM -
Flux core mig wire
By tonyhothe in forum WELDINGReplies: 1Last Post: 2nd Oct 2015, 06:44 PM -
Flux Core Vs DC Arc
By blumx in forum WELDINGReplies: 14Last Post: 27th Jun 2013, 10:49 PM -
Can you use flux core wire in an old gas mig welder?
By cant_arc_weld in forum WELDINGReplies: 4Last Post: 25th Jul 2011, 08:16 PM -
flux core wire
By danielhobby in forum WELDINGReplies: 0Last Post: 11th Sep 2010, 11:58 AM