Walnut Hulls Clean Aluminum
Hulls inflict minimal substrate damage. Walnut hulls found to be best abrasive for cleaning aluminum surfaces prior to painting. Samples blasted with walnut hulls showed no compressive stress of surface.
Colberg, W. R.↗
Engineering topics
Colberg, W. R.
Publications and source records attributed to Colberg, W. R..
Refurbishment of SRB aluminum components by walnut hull blast removal of protective coatings
A test program was conducted to develop, optimize, and scale up an abrasive blasting procedure was developed for refurbishment of specific SRB components: aft skirt, forward skirt, frustrum, and painted piece parts. Test specimens utilizing 2219 T87 aluminum substrate of varying thicknesses were prepared and blasted at progressively increasing pressures with selected abrasives. Specimens were analyzed for material response. The optimum blasting parameters were determined on panel specimens and verified on a large cylindrical integrated test bed.
Colberg, W. R.↗