top one is slow movement /bottom bit faster pace ,gas flow 15 /80 amps sch10 bends,maybe not enough filler or to high an amp ?any input welcome [IMG][/IMG]

 

people here like to do a root pass without any filler, then a cap pass with filler next. your rythem looks ok on the top, but about all i can tell. did you wire wheel it after welding? i dont see any HAZ (heat affect zone) and the color looks pretty much all black. Lighting is pretty bad as well..

 

i notice you are asking lots of beginner questions in various posts, which is good, dont get me wrong.

try asking more specific questions about your specific application and issue rather than just vague blanket questions.

"how to make a flange flat" is really too vague to get a good answer. a better question would be "how to properly weld a manifold to prevent excessive warping, and how to fix any minimal warpaing after welding following that advise?"

always have a thick plate or spare head bolted to the flange when you are welding the runners to it, and leave it bolted on until it is totally done cooling off. never force it to cool with water or blowing air on it. if anything let it cool off real slowly. only unbolt part of the runner to allow access to get your torch in there, and re bolt it up right after. dont be in a hurry, dont weld so much that the entire flange is glowing red. if this is your first time, id say do like an inch inch and a half pass at a time, and wait like 15min or so until go proceed. (this is unless you can move quickly, which i doubt since you are asking these questions).

once its all cooled off, and you unbolt it, it may be slightly warped, a belt saner will be more than fine for this. you can pick up a sander for under 100$ that is junk, but will work for this. id have a few different belts, one 60 grit and one 120. press the manifold flange evenly on the 60 grit in bursts and check the bottom to see when you are sanding the entire flange, then switch to 120 grit and smooth it off. double check bolt holes still line up, if not, drill em a tad bigger.

this is my advice, but there are many people on here who have way more experience and knowledge. none of what i said is blatently wrong, but others may have better info.

 

i will take all on board with me for any other issues ,thanks for the input

 

i don't. single pass only for me.

op: experiment with your filler. how fast you dab, how much you push into the puddle, or if you let it melt off the filler metal into the pool.

also experiment with your welding angle. try welding so that you are looking down the seam of the joint and the puddle is coming toward your helmet. always try to fill from the middle of the puddle at the joint, but experiment with filling from the side to see how it changes the appearance and behaviour of the puddle.

experiment with your torch angle. try it perpendicular to the base metal, try it at a slight angle pointing in the direction of travel.

look at different parts of the puddle when you are welding. look at the keyhole (center of the puddle where the joint is). look at the edges of the puddle at the base metal to see how it reacts when you apply more and less amperage, or more and less filler.

the arc can behave differently in all scenarios. you need to learn it's behaviour and how to make it do what you want it to do. it all comes down to experience and getting as much as you can.

good luck!

 

very very helpfull replys thank you

 

also be sure to be as steady as you possibly can. i will rest both my wrists on the welding bench, or part of what i'm welding (that isn't hot) and keep my elbows tucked into my ribs so that i'm as smooth moving as possible. i find it helps with my consistency of keeping a nice uniform bead. remember, you don't have to weld very far at a stretch before letting it cool.

 

weiR pretty much nailed it. What you need is torch time more than anything at this point. The more time you spend at the torch, the less questions you'll find yourself needing to ask because it won't be a question of not knowing the answer, just getting yourself good enough to achieve the results.

 

il certenly take this onboard and try some new technic