Most of our larger extrusions, that are basically "big" slabs of aluminum, between 8mm to 10mm thick, with some thicker flanges to them, are machined. Though we require machine sources to cut with denatured alcohol, the ones who don't wash their parts through a "soap and clean water" bath. I am...
Thanks for responding, btrue.
The "furnace" is a vacuum braze oven. We build radiator cores out of all aluminum material. There is cladded aluminum sheet stock (cladding is 4004 material, I think the base metal is 3003)...but the cladding isn't the issue.
I did a DOE last year when this...
I work with aluminum castings and aluminum extrusions. The extrusions go through a brazing oven as part of a "core assembly"...the braze oven gets up to around 1100 degrees F, though does not stay at the temp long before starts to "cool down".
I ma seeing parts with a black stain on the...
