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I'm having a hard time welding a pair of jaws onto a vise that I have. Its an older wilton....and the jaws are for a new model wilton....pretty much making them fit. Figured I could just run a root pass with a tig. Problem is the jaws and vise do not want to weld. I'm using 3/32 702s filler...and the weld keeps cracking and not making good penetration. (like it does when you run out of argon....which Im not out of). Any tips....is it cause its hardened steel?
Reply:Vice is a pretty big hunk of metal. Heat it up with your oxy/acet torch first, the weld it with stick instead of tig.MM350P/Python/Q300MM175/Q300DialarcHFHTP MIG200PowCon300SMHypertherm380ThermalArc185Purox oaF350CrewCab4x4LoadNGo utilitybedBobcat250XMT304/Optima/SpoolmaticSuitcase12RC/Q300Suitcase8RC/Q400Passport/Q300Smith op
Reply:The vise may be an iron casting, meaning heat-treated cast iron, perhaps nodular iron. Usually the replaceable jaws are held in place by screws. Welding on such a material will ruin it; if you can't hold the jaws with screws, try brazing instead and use silicon bronze if TIG is all you have to work with.
Reply:Drill new holes for the screws through the new jaws to match the holes in the vise, don't forget to counter sink an area around the new holes for the screw heads!I know, this is a welding forum, but some common sense seems to be whats needed for this one! #1. If you don't like what I wrote, or if it offends you, then don't read it!#2. I am living life the way I see fit, if you don't like the way I'M living, tough sh**!
Reply:Stick weld it, E6010 electrode neg. What's the worst that can happen? I did my cheapo vise after breaking the screws. I used E6011, but then cracked the bead pounding on the vice again. There it stands, cracked again. I may try E6010 this time. If it was a nice keeper vice, I would use screws. True confessions...City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny
Reply:Originally Posted by Oldiron2The vise may be an iron casting, meaning heat-treated cast iron, perhaps nodular iron. Usually the replaceable jaws are held in place by screws. Welding on such a material will ruin it; if you can't hold the jaws with screws, try brazing instead and use silicon bronze if TIG is all you have to work with.
Reply:Oldiron2 got it right. There are Wilton vises everywhere in this part of the oil field and they are used hard and abused a lot. I've seen jaws welded on with cast iron rod and they eventually crack off. The ones brazed on stay. I've brazed on a few when the screw holes in the body were gone.The bodies are easily brazed if you manage to break one which can be done. I've even repaired a couple of broken ones.
Reply:# 1 recommended repair: drill and tap new holes.# 2 " " : Braze the steel jaws to the cast iron vice.
Reply:I know the correct way is to drill and tap....but the surface needs shimming, thats why I wanted to fill in the gap with a bead first....then bolt the jaws on.... Anyway....tried some pre heat and used some 316L filler rod (figured it can't hurt to have some lower carbon content to let it bond better.) .....and it seemed to work. Tested the vise out and gave her a good bounding with a 10lbs sledge hammer and none of the welds cracked. |
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发表于 2021-8-31 23:49:26