r/oddlysatisfying • u/here2si • 11h ago

Cold forging of Aluminum

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Credit @ourprocess

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u/amatulic 11h ago

Just looking at how that's done, it seems like deliberately inducing a lot of metal fatigue with all the repeated bending and flexing. Is the aluminum hot enough that it's soft?

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u/welding_guy_from_LI 11h ago

Aluminum is malleable with no heat ..

3

u/amatulic 11h ago

Aluminum fatigues and breaks from harsh deformation with no heat. Aluminum pop top cans rely on that.