9.2kva out means somthing like 13000 watts input if it is a transformer type and you want full power out assuming 70% efficiency

A company by that makes radar mounts has them cut with laser and uses nitrogen gas

clean the bolts remove galvo and weld mig, tig. the strength will no longer be what the bolt was. I assume you want to weld head to head. I second the idea of using threaded rod and 2 jam nuts or 2 regular nuts or a coupling nut with a hole drilled in it where you can then weld that in place

I would roll the tube and then un coil it to your total rise . like wrapping a wire around a pipe then stretching it out, it may not be that easy though . check with local steel suppliers they may have power tube roller that can be used. Check you tube

I just searched Google Images "powermatic bandsaw welder" and thats what comes up $70 great deal

looking at thier website the machine seems ok in the lathe dept and weak in the mill dept not beefy enough. for the cost I think you can get good used iron provided you have the space. I have a sheldon lathe very worn ways and an index mill (vertical knee) ,I just picked up a very nice MSC 1325 lath...

what I get from it is ,as with all things we have salesmen and buyers. when I don't research the technology or subject , I rely on salesmen and brand names . eg. a good blue-ray player? ,I just buy sony ,samsung , top name brand, based on that company's reputation without thinking. With welding ther...

I Have a Hypertherm PM45, I purchased this because they have excellent cut quality and consumable life. Chinese plasma are inverter power source but may lack in the torch and consumable area. This is relative to what you need to cut. I own harbor freight band saw and die grinders - but I use lennox ...

here is very intersting Point of View on welding gasses
http://www.weldreality.com/MIG_welding_gases.htm

regarding an all in one machine , there are differences in the power sources that you need, resistance welding (arc, mig, tig) requires low voltage up to about 30V Plasma cutting uses voltage in the range of 100-120V so the power source for one will not work for the other. Inverter power sources are...

Its a process of elimination , test the trigger in the gun with a meter , check the connection to the welder ,try shorting the pins associated with the trigger at the welder, open up the welder look for anything obvious- loose connections, this machine has a circuit board that controls everything.

you are using something premium, not just the cheapest on line crap I hope?

that is possible and true .stick with quality products that You are comfortable with. the end results should be consistent with your expectations. Use the best , premium products recommended . Wire choice can make a world of difference! I can not recommend any wire brand of flux core as I prefer gas...

sorry I was obviating , Roller Grove selection is as follows V for steel Wire, U for Aluminum , Knurled for flux core that is the rule period. takes hundreds of pounds of wire to ware a roller out

what I want in the end is strong , clean looking welds, I never attained that with flux core ,never liked it - so I only went to argon-co2 , and with the crappiest equipment , I achieve great results,I use good tips, correct gas and american made mig wire in my crappy welder. Mig welder.Welding is m...

what do you mean by burning thru tips? burnback? the tip bore has doubled? tips last a long time, when the wire welds to the end of the tip , the tip is not burnt or shot, just needs to to be fixed. Why that happened is what you want to Know. I dont think that you ran 25 lbs of wire thru that tip an...

I have put a spool gun on a Harbor freight italian made mig welder. It went like this, opened up the welder found the wires going to the mig wire feed motor, trigger and potentiometer used for wire speed. You need switch between these items. many wire feed motors are ~24v . you will need a switch wi...