3 ms·
No that huge a void. Optically flat polished metals, such as guage blocks, will form a few metallic bonds when pressed together.
by TheSpiceIsLife 3y ago
No that huge a void.
Optically flat polished metals, such as guage blocks, will form a few metallic bonds when pressed together.
- thsksbd 3y agoOf course, but the OP asked what distinguishes one group of, say, Al metals in one work piece from another --> The void and xtal misalignment.
- lstodd 3y agoOptically flat isn't even needed per se. You can weld metals by slipping two blocks a bit under pressure side by side just like that in standard atmosphere, and when there's some sort of low-pressure environment it just takes that much less of a slip. No need to go down to space-grade vacuum at all.