3 ms·
> But, yeah, this isn't a solution for joining outdoor windows to metal frames. Says who? Welds held up to pretty harsh conditions -50C to 90C.
by MichaelApproved 8y ago
> But, yeah, this isn't a solution for joining outdoor windows to metal frames.
Says who? Welds held up to pretty harsh conditions -50C to 90C.
- dsfyu404ed 8y agoJust because a test joint of unknown size and shape held up over that range doesn't mean an actual real world assembly can hold up over that range. We know nothing about the nature of the weld they tested or the nature of the testing. Even with two of the same materials it's very possible to design a joint that doesn't work very well in the real world.
- ddingus 8y agoThat would work in much of the world on paper. Not that the world sees the upper range as ambient. The metal may well approach the upper range during a sustained heat exposure. Wonder what the safety factor actually is? There are three basic types of temperature exposures: One, a journey. Got super hot, or cold for a while, then returned to moderate, or acceptable range. Two, excursions. Got extreme and stayed there for a non trivial time. (Scaled to the properties of whatever it is) Three, wild ride! Journeys all over the place. In addition, these can be one off events, or cyclic. Windows get a kind of cyclic ride in many places. A bond holding "for a while" always has the question of what "while" really means. Microfractures due to highly localized stress and strain, pre loaded in as an artifact of welding, would be my primary concern.
- crispyambulance 8y agoThe glass-metal weld itself might be perfectly fine! The glass portion, however, could crack depending on its size/geometry and the temperature change. The article doesn't make clear exactly what kind of manufacturing operation they're intending. I suspect this is a technology to replace glue/epoxy in certain scenarios where one joins metal and glass.