friction   499

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PNNL: News - ShAPEing the future of magnesium car parts
Basically pushing friction stir welding products through an extrusion die, rather than heating the whole mandrel or heating the whole die. Which implies improved microstructure for the extrusion, and that anything that can be friction stir welded can also be extruded (perhaps continuously?)
metal  metallurgy  friction  stir  welding  extrusion  materials  science  manufacturing  research  technology 
june 2019 by asteroza
#90: Be Your Own Password
> What’s left, then, is “something I am” along with the increasingly important object that is also increasingly unusable by anyone but me, and therefore more a part of me than ever. No wonder it’s so hard to put it down.
drew-austin  iphone  apple  security  passwords  friction 
june 2019 by jasdev

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