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On 02 Jul 2003 07:32 PM, Bruce A. Frank posted the following:
Del Rawlins wrote: On 02 Jul 2003 02:59 PM, Bruce A. Frank posted the following: Del, Was the rod you used copper plated? Did you remove it, the copper, before using the rod? (polish it with Scotch Brite) I ask because almost everyone with whom I have spoken finds the -6 produces a nicer bead and much quieter molten puddle (than -2) when TIG welding ( fewer sparks flying contaminating the tungsten). I rubbed it with steel wool but not enough to remove the copper, which would have taken a while. Guess I need to do more experimenting with it. Sand paper will work just as well as Scotch Brite and may be faster. Then again, the ER70S-2 I am using is also copper plated and has gotten the same steel wool treatment. Next time I weld (I am cutting and forming parts for the control stick assembly right now) I will make more of an effort to clean the copper off the rod and see what difference (if any) that makes. As for cleaning the base metal, I normally sand the weld areas with emery cloth or lightly hit it with a power sander. I have sometimes wiped the area down with acetone, but never noticed much difference if the metal was fairly clean to begin with. If it is at all oily I always wipe it down prior to welding. ---------------------------------------------------- Del Rawlins- Remove _kills_spammers_ to reply via email. Unofficial Bearhawk FAQ website: http://www.rawlinsbrothers.org/bhfaq/ |
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