Glossary
Drilling
Power Materials
Driling is a cutting process that uses a drill bit to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions per minute. This forces the cutting edge against the work-piece, cutting off chips (swarf) from the hole as it is drilled.
An example of drilling is at Bolivia's Salar de Uyuni salt flat which holds an estimated 17% of lithium globally. Workers drill though the crust with large rigs and are aiming for the brine underneath swathes of magnesium and potassium in the hope of finding lithium-rich spots. Since the 2000s, most of the world’s lithium has been extracted this way, rather than using mineral ore sources such as spodumene, petalite and lepidolite
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Anonymous
Very good overview of the weekly steel market.
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