Try filling it with sand and using a tool the shape of the dent you want. We've used the sand method too. Very dry sand, packed in tight and the ends of the pipe capped. We then used heat and formed the pipe to suit. What is the wall thickness of the pipe, do you know what grade stainless? the grad...

I'm working on some 3inch stainless pipe and I need to shape a 20mm by 5mm deep "dent" in a section for clearance
I was going to heat it push it like mild steel but being stainless I don't want to do it this way if there is a better way

my engine builder was talking about this the other day said he can hot tank most cast items maybe thats the way to go?
ive also been told sand blasting works well

they are looking good

a joint will get more penetration and the back purge will help with cooling so you can run some more amps
the thickness amps and heat tolarnce are all relevent to each other

ill do a couple of welds with a number 8 and the over size cup so you can see the diffrence if you like

if the post flow area is shiney/nicely coloured its going to be a sheilding/torch angle/heat issue if the area is remain red after its left the sheilding area this is what is causing it if you have done multi pass on the same pipe it could be from all the heat in the pipe making the issue worse. bes...

how much is the gas flow set at? i normal run a min of 15lpm for a size 8 cup that should be about around 30cfm otto might be right it could be a problem with the torch you might want to check it with a Shield Gas Flow Tester the other thing it might be is if the pipe you used has got sugaring or ca...

looks like your welding hot, are you using and hand/foot amp control? also i would look at maybe getting a gas lense setup with some large lenses If you see the photos that happens also to the cold welds (How much less than 30amps to put?!?) . I ve searched the forum over and over and see that many...

looks like your welding hot, are you using and hand/foot amp control?
also i would look at maybe getting a gas lense setup with some large lenses

thanks guys i wish i could get some more spare time to get more time welding, i need to set up more drills for pracitice to get my beads mor consistant. ill post some pictures of the setup and prep tomorrow tzogistas im using a Lincoln PT275 with foot control, a weldcraft wp20 torch with extra lagre...

ive been doing some practice on thin walled stainless pipe and was wondering if im on the right track

here are is a pics what do you think?

hey guys ive been doing some pratice work, its some 20mmx20mmx2mm SHS that i made up into a frame i welded all the joints and then put some cross supports in, nowevery so often the puddle on the frame side would pop killing the tungsten and leaving a nice hole. would this be pressure build up in the...

thanks jakeru i bought the gas lense kit from arc zone specially for the weldcaft torch, everything i have tried has been interchangable. the problem i had as was said earlier was removing the standard insulator for the large pyrex gas lense, but that was my fault thinking it was like a large body t...

that was from there rep, even checked there manual and its in there as well

apperatly you dont get as much oxidation on stainless

ive got one on trial from now

and i was told argon argon/heli was the best from stainless, but is it possible to get the 70-90 psi the machine needs to be effective?

http://i69.photobucket.com/albums/i59/mr_32/DSC_0254.jpg here is the setup, end up giving it a go without the insulator didnt have any leaks so i gave it a quick go on some stainless http://i69.photobucket.com/albums/i59/mr_32/DSC_0256.jpg looking forward to haveing a play with it for a few hours n...

how big is the gap and how sharp is the tungsten?

finally got a chance to set this up

now maybe im missing something but if i try to use the gas lense insulator, the gas lense thread isnt long enough

any ideas what im missing?

Hey guys

just wanted to see peoples thoughts about plasma gouging vs arc gouging
we do alot of arc gouging in the shop and came accross plasma gouging. is this a better process then arc gouging?

finally ordered my large pyrex gas lense for my wp-20 and wanted a little help with set up ive read that an extra diffuser makes these work really well but my question in does it go between the screen and adaptor (in the middle) or in front to the diffuser mesh (to the left) http://i69.photobucket.c...

i ended up ordering from them

communication was good as was price. international shipping was good to $55 dollars for 3 lincoln pulse panels

nah this was welded in oz.

whats even better is its chrome moly

recenetly my friend had a roll cage built and asked me to have a look at it
i was left spechless, and offered to do a dye pen test to see how bad it really was.

any one used welding supply.com for your spare parts?

they seem to be the only ones with the replacment parts im looking

thanks

he is asking $3000 AUD

looking around they retailed for 6000aud for a bare machine, but are no longer sold here as they dont meet australian standards
the closest machine is the dynasty 200dx air cooled at $4420aud +tax or 350dx water cooled at $6835 aud +tax pluswater cooler

Ive come across a a Miller Syncrowave 250DX for sale that 2 years old. I wasnt really looking for an upgrade on my current machine, however at half the price of a new machine im tempted to upgrade. Should i upgrade? Is there anything i should be looking for when i inspect the machine? was there any ...