welding thin expanded metal to angle

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building a shelf out of angle with an expanded bottom, wow it was a pain trying to tig it. When I would get a nice puddle in the angle the expanded metal would just melt away, got some to work finally but just pulled out my stick welder and some 1/16 6011 rod and went to town. Seems my amp control is not fine enough guess my foot is not practiced enough. I really don't have much trouble with other stuff......Yes I was adding filler and 2% thor 3/32 rod pure Argon at about 15 or so........BrandonLincoln Tombstone 225 A/C Steel StickerOld Victor O2/Acetylene setupMiller Syncrowave 250 Tig/PC-300 PulserMiller Millermatic 212 Mig HTP Invertatig 201 Giant Teck D50 Plasma cutterLots of HF grinders
Reply:No matter what processyou use set current for the thinnest piece of metal. Start a puddle on the thicker piece and walk it over to thinner piece.Tough as nails and damn near as smart
Reply:Mig works the best for this process. It won't leave much spatter and you can "spot" the weld securely with little effort and much more speed.Esab Migmaster 250Lincoln SA 200Lincoln Ranger 8Smith Oxy Fuel setupEverlast PowerPlasma 80Everlast Power iMIG 160Everlast Power iMIG 205 Everlast Power iMIG 140EEverlast PowerARC 300Everlast PowerARC 140STEverlast PowerTIG 255EXT
Reply:Use a small metal washer layed over the exp metal and plug weld the hole thru the washer and wire into the frame. The weld will be stronger and the wire will stay put longer...BobBob WrightSalem, Ohio  Birthplace of the Silver & Deming Drillhttp://groups.yahoo.com/group/southbend10k/http://groups.yahoo.com/group/sawking/1999 Miller MM185 w/ Miller 185 Spoolmate spoolgun
Reply:Thanks guys never even thought of using a washer good idea......didn't have much room to form the puddle in the base metal and it still would melt the expanded metal away when I would run the puddle over to it.....Yeah I wish I had a Mig looking for one now.....BrandonLincoln Tombstone 225 A/C Steel StickerOld Victor O2/Acetylene setupMiller Syncrowave 250 Tig/PC-300 PulserMiller Millermatic 212 Mig HTP Invertatig 201 Giant Teck D50 Plasma cutterLots of HF grinders
Reply:I've done this many times over the years.  I like to use 3/32 7018, or MIG.  I concentrate the arc on the heavier angle and allow the molten puddle to "flow" to the thinner, expanded metal.  Works every time.
Reply:Originally Posted by paweldorI've done this many times over the years.  I like to use 3/32 7018, or MIG.  I concentrate the arc on the heavier angle and allow the molten puddle to "flow" to the thinner, expanded metal.  Works every time.
Reply:I just built a couple ramps for wheelchair access to the house & used expanded metal.  I used my HH175 with fluxcore to weld it all together - no gas in the bottle.Started at the square tubing frame & then washed the puddle up onto the expanded steel.  I welded every third diamond that overlapped the tubing & it worked out real good.  Ramps came out ok & will allow us to use M-I-L's manual & electric w/c's into the house.  Max weight is about 325 lbs.MarkI haven't always been a nurse........Craftsman 12"x36" LatheEnco G-30B MillHobart Handler 175Lincoln WeldandPower 225 AC/DC G-7 CV/CCAdd a Foot Pedal to a Harbor Freight Chicago Electric 165A DC TIG PapaLion's Gate Build
Reply:Originally Posted by brandon113 When I would get a nice puddle in the angle the expanded metal would just melt away,  Seems my amp control is not fine enough guess my foot is not practiced enough. Brandon