aljaxon
New Member
- Messages
- 7
- Location
- east yorkshire uk
hi im welding exhaust pipes made from rolled 0.9mm mild steel. i use 1.6mm red tungstens and 1mm filler rod.
i dont really know what im doing i have tought myself but i have made 5 pipes so far and i have to use a grinder a lot and i have to test for leaks and usually have loads of tiny holes to fill. but i havent had one crack in 7 years.
if i use more than 16 amps (i set main and base the same) the metal just burns into holes very quickly - almost instantly. i have never used pulse with my welding but i tried yesterday and didnt notice any difference. i think i need to know what the settings are. my machine has pulse frequency 0.5 to 25 htz and pulse width.
i have never ever achieved the stack of dollars look to my welding. is that because i arent using pulse? i tried seam welding (is it called autogenous?) for the first time yesterday but sometimes it would look fine then other times it would burn holes if the gap between sections wasnt perfect.
ive seen people recommend blue tungstens? are they a recent thing? i thought it was red for steel or white if you fancied splashing out. i struggle to keep the electrode 2mm away from the weld and sometimes the weld pool will turn into a bobble and ground the electrode. really bad technique to blame. but i keep going through electrodes some only lasting 5 seconds.
its because the work piece is usually round in shape so i have to keep moving me torch hand in 3d
so questions. should i be pulse welding? and for what im using/doing what settings should i use?
and when welding i can see the arc and pool perfectly but i cant see the seam im supposed to be welding. the surrounding area is too dark and i often wander away from where the join should be. i wear glasses and have a few pairs its just too dark. i have even tried a lamp above. im thinking i maybe need some 240000 watt stadium type floodlights. or is my helmet lens wrong?
thanks
i dont really know what im doing i have tought myself but i have made 5 pipes so far and i have to use a grinder a lot and i have to test for leaks and usually have loads of tiny holes to fill. but i havent had one crack in 7 years.
if i use more than 16 amps (i set main and base the same) the metal just burns into holes very quickly - almost instantly. i have never used pulse with my welding but i tried yesterday and didnt notice any difference. i think i need to know what the settings are. my machine has pulse frequency 0.5 to 25 htz and pulse width.
i have never ever achieved the stack of dollars look to my welding. is that because i arent using pulse? i tried seam welding (is it called autogenous?) for the first time yesterday but sometimes it would look fine then other times it would burn holes if the gap between sections wasnt perfect.
ive seen people recommend blue tungstens? are they a recent thing? i thought it was red for steel or white if you fancied splashing out. i struggle to keep the electrode 2mm away from the weld and sometimes the weld pool will turn into a bobble and ground the electrode. really bad technique to blame. but i keep going through electrodes some only lasting 5 seconds.
its because the work piece is usually round in shape so i have to keep moving me torch hand in 3d
so questions. should i be pulse welding? and for what im using/doing what settings should i use?
and when welding i can see the arc and pool perfectly but i cant see the seam im supposed to be welding. the surrounding area is too dark and i often wander away from where the join should be. i wear glasses and have a few pairs its just too dark. i have even tried a lamp above. im thinking i maybe need some 240000 watt stadium type floodlights. or is my helmet lens wrong?
thanks