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I need some help. I'm out of my comfort zone at the moment, I need to repair / modify a piece of artwork that I believe is bronze sheet. It appears to have been MIG welded. What do I use for wire? What shielding gas? What polarity? If anyone has ANY experience with this please feel free to chime in. Thanks!Just my opinion, not from a book, just from the road.Howes Welding Inc.www.howesweldinginc.com
Reply:If nobody has a definite knowledge on this, does anyone have any good guesses?Just my opinion, not from a book, just from the road.Howes Welding Inc.www.howesweldinginc.com
Reply:I'll guess it was not done with a GMAW.
Reply:This won't help any so I kept quiet. Many years ago(early 70's) I did some mig bronze welding. It was replacing wear strips on a extend-a-boom hoe. I can't recall wire, gas, or polarity. 'Bout all I remember for sure was it was bronze and I used a Cobramatic mig. See, told ya, useless---sorry.
Reply:Well I guessed and guessed wrong .Let's see how this link works.http://www.airgas.com/browse/product...157&WT.svl=157
Reply:Interesting reading:"3) Gas Metal Arc Welding (GMAW) of Copper and Copper alloys:3.1 GMAW of Copper:ERCu copper electrodes are recommended for GMAW of copper. Aufhauser Deoxidized Copper is a versatile 98% pure copper alloy for the GMAW of copper. The gas mixture required will be largely determined by the thickness of the copper section to be welded. Argon is generally used for 6mm and under.The helium-argon mixtures are used for welding of thicker sections.The filler metal should be deposited with stringer beads or narrow weave beadsusing spray transfer. Table 1 below gives general guidance on procedures for GMAWof Copper."http://www.brazing.com/techguide/pro...er_welding.aspLittle bit deep for a guy like me who just wants to go out to the shop and pretend .. |
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