Demonstration of how to fill a void, dent, pit, etc in aluminum, using super alloy 5 aluminum rod and flux. an oxyacetylene torch with a carburizing flame is.... Super alloy 5 aluminum brazing rod and an oxyacetylene torch with size 1 brazing tip are used to repair a large dent in an aluminum boat. for this application, a carburizing flame is recommended, to avoid overheating the thin aluminum parent metal.. I repair aluminum boats all the time. depending on the severity of the dent, and if the metal is stretched, will determin the correct course of action. below is a repair of a hewscraft that got sliced open..
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The boat has various dents and dings. ( most the size of a quater except the bottom which has some crease type dents and old weld repairs. i have been reading old posts about fixing aluminum and removing dents but always find contradictions in methods and philosophy. some say use heat and monitor you temperture.. Before you go welding on it, i had a book on aluminum boat building that had some stats you should know. i think welded boats use a 5000 series aluminum that only loses 10% of its strenght along a weld. and if i remember right, riveted boats use a different alloy aluminum that can loses up to 90% of its strenght.. Re: aluminum dent repair well, from what you describe, the front dent shouldn't be a problem. aluminum can be pounded out from surprisingly deep dents, preferably with a brass mallet, to bring it out to near where it was and then finished by holding a "bucking bar" (any large steel/iron slightly curved opject) against the outside and tapping it from the inside, again with the brass mallet, to.
