I don't disagree that 3/32 in.is a good choice for the size of the filler wire,but,1/16in. is also a correct choice.Being new at welding, 1/16 in. could also be a correct choice.....ron

Might want to take to a weld shop, or muffler shop to do the welding, they have all the equipment and experience. Could be cheaper in the long run, and should have a warranty......ron

why would you want to scratch start the weld process when you have HF? if you have a foot control,place tungsten within 1/16 IN. from work, the HF will start the arc,no tungsten contamination. You should be using pure tungsten, so no need to sharpen, just break off the contamination part and start w...

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a 2in.sch.80 pipe has a nominal wall thickness of .218in.,Depending on the end use, and pressure, the min.weld size would be Tx2T, T being the wall thickness, and 2T would be twice the wall thickness. or, .218in.x.436in. the pullout should be aprox. 1/16 in.( this eliminates stress on the completed ...

mig or tig? never heard of walking the cup while mig welding.....If mig, lead gun aprox.3 to 5 deg., and try increasing amperage if the weld doesn`t want to flatten out,the force of the arc can force the molten puddle forward, resulting in a flatter weld. If you are new at welding, try your own tech...

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Great welding machine, old but a nice stable arc. I have welded many corner joints and can give you a methods that work for me; The edges have to be clean and metal to metal fit, no gaps. ( your tacks look great, the ones that worked) and the recommended tungsten is pure tungsten (green ends) Althou...

Washing over a weld to smooth its surface without adding filler wire is not a recommended process, it could weaken the joint because of the heat input. metallurgical changes, and grain growth. You could add additional weld then contour to a smooth surface. This creates a lot of additional work, but ...

DO NOT USE WATER.welding and h2o do not like each. You can purchase some heat sink material from your local weld shop or auto body shop. its like a clay substance. I think one trade name is " heat fence". If the brass has a lot of zinc in it,it will let you know with a lot of white smoke, ...

any metal will work if you don't direct the arc on the backup material. The molten aluminum will not bond to any metal , its not hot enough. Weld one side ,then turn over and check for non fusion ( grind out with a carbide burr) then weld the other side and prep for drilling or milling. I have welde...

I don't know the metric system, but ,never exceed 15 lbs. pressure on the secondary stage of the regulator, because acetylene is unstable above the 15 lbs.and could detonate. also,always keep the acetylene bottle in an upright position. If used in the horizontal position, you could get acetone in yo...

My observation and recommendations would be as follows:1,too much heat input,it appears that you are not cooling the base metal between passes.the base metal should be below 350 degrees between passes. compressed air works great. 2, the use of a gas lens would improve the argon flow from the torch. ...

because of the angle of the torch and not lifting the rod from the puddle, could this method invite cold lap,or lack of fusion ? ron

7018 and er70s6 are about equal as far as all tests.You can weld over 7018 with er70s6, or er70s6 over 7018. I have welded many carbon steel pipe tig welding the root pass, and fill to cover using 7018. x-rays are sat.....ron
The tensile strengths of both electrodes are aprox.70,000 psi

I developed a welding procedure for welding aluminum pipe, 5 in.diameter and 1/2 in. wall. 60 degree inclusive angle , 1/16 in. landing,with an open root of 3/32 in.I used 3/32 in. thoriated tungsten ground to a point. and torch purge gas of 100% helium , and a flow of aprox. 20 cfm.,and amperage of...

not enough info to make any suggestions as far as welding goes. Submit some drawings of the stands, or supports for the mill and lathe, and you should get lots of good info....... good luck, ron

Try nickel al. bronze welding filler wire. If you try fusing the metals without using filler wire, you will probably have a cracking problem.....ron

What joint type are the tests, open root, closed root, backing ring, and what type of inspection is required? Hint, cut the filler wire in half so it will be easier to control, because of the small pipe diameter, you will be out of position before you could burn a complete rod. If you are allowed to...

If all other aspects of the weld test were the same, including base metal,fit-up,etc..... my only suggestions would be angle of the gun and/or the distance between the nozzle and joint,resulting in insufficient gas coverage......ron

I don't have any videos or pics to download, but I can give you a few pointers that might help you get a better looking weld on ss sheetmetal; try using more amperage and increase the travel speed. next. shorten the tungsten stickout and lead the torch aprox. 7-10 deg. next, be sure to clean both th...

If you are going to be doing a lot of welding using a separate purge system, I would buy a separate argon tank and reg/flow meter.Cost is not cheap, but well worth it. hope this helps.....ron

When practicing as per your picture, increase your speed and always start a new weld bead on a cool part of your test plate.Also,if the test plate is too thin, there isn't enough material to reduce the temperature of the weldment (bead) after the bead is exposed to the air. The dark color on the bea...

welding is when the base metal is melted,soldering and brazing is when the filler metal is applied by capillary action!