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I have a small craftsman hobby welder and have just started welding with it again today after receiving a new gas valve for it. I am welding a rollcage for my car, so I am on either the 3 or 4 setting for voltage most of the time when using .30 wire. One problem I have run into is the wire coming from the tip of the torch just balls up and still makes the complete circuit but doesn't touch the actual material I'm welding, it just sort of drops onto it. It also doesn't make the normal crackle type of sound when it arcs and balls up like I described, it just sort of makes a smooth buzz sound. I tried turning the gas off and seeing how that affected the welding and it made everything weld like you're not using gas. It contacted the metal, didn't ball up, and made the normal crackle sound, although the sound of not using gas. I tried adjusting my stick out, how far I hold the tip from the material, non of which solved the problem. Has anyone else every experienced this before? I wish I could get a picture of this but It's kind of difficult to take a picture with my phone. Hopefully someone can picture what I'm describing, lol.
Reply:Did you switch polarity when you converted to gas?
Reply:Originally Posted by LarryLarryDid you switch polarity when you converted to gas?
Reply:Is your contact tip the right size? How big is this is this welder? If your welding a roll cage, you need a good machine and some welding experience. Can you post a picture of your machine?
Reply:Originally Posted by Welder DaveIs your contact tip the right size? How big is this is this welder? If your welding a roll cage, you need a good machine and some welding experience. Can you post a picture of your machine?
Reply:What gas blend are you using and at what flow rate?Based on your description your welder is not set correctly.Your wire feed speed needs to be increased when it balls up like you described.It's an indication of too slow of speed in relation to your voltage setting.One question, why on earth would you turn off the gas? No good weld will ever come from that.I won't comment further on your use of a questionable machine on a roll cage, without the proper skills to set it correctly.Dave J.Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~ Syncro 350Invertec v250-sThermal Arc 161 and 300MM210DialarcTried being normal once, didn't take....I think it was a Tuesday.
Reply:Originally Posted by DefkonI tried turning the gas off and seeing how that affected the welding and it made everything weld like you're not using gas..
Reply:Turn you wire speed up, or turn ur heat down. If that doesn't work check feed rollers (size?pressure?right rollers for wire? Etc.) Tip size, is tip warped or clogged(I would just replace the tip while I'm at it) If all that is correct and it still isnt right, backfeed the wire taking it completely out of the conduit unscrew tip from torch and blow the conduit out, after time shavings collect in the conduit and cause the wire to "drag". I blow out my torches all the time.Good luck,Last edited by hotshot01; 08-16-2015 at 07:59 AM.
Reply:It also arcs before the trigger is pulled which causes the end to ball up. Could that inital little arc just cause it to kind of roll up on itself instead of going right to the material I'm welding together? That sounds like the machine's gun is hot at all times. So don't touch the wire to the work surface...keep it a little away from surface and then pull the trigger to weld. And make sure you can feel the gas coming out of the gun. Turn the wire speed down all the way and see if you can feel it flowing. And...as that other thread pointed out...MAKE SURE YOU HAVE A GOOD GROUND.
Reply:Originally Posted by MinnesotaDaveWhat gas blend are you using and at what flow rate?Based on your description your welder is not set correctly.Your wire feed speed needs to be increased when it balls up like you described.It's an indication of too slow of speed in relation to your voltage setting.One question, why on earth would you turn off the gas? No good weld will ever come from that.I won't comment further on your use of a questionable machine on a roll cage, without the proper skills to set it correctly.
Reply:The gauge should be in CFH not PSI. I think there's a reason the welder was free. |
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发表于 2021-8-31 22:30:44