3 ms·
> Tungsten is the only metal you can reliably use as our machines have beam powers up to 15kW which can precisely deliver an enormous amount of heat into a penc
by e12e 5y ago
> Tungsten is the only metal you can reliably use as our machines have beam powers up to 15kW which can precisely deliver an enormous amount of heat into a pencil point sized area. Even at the common 1-3kW ranges the tungsten instantly liquefies when the beam turns on.
I'm sorry - is there an error here? As I understand the rest of your comment, you use Tungsten because it does not liquify?
- zamadatix 5y agoThe whole block doesn't instantly liquify like other metals, just the small point the laser hit (hence the small dent after).
- MisterTea 5y agoNo error. The tungsten liquefies locally to the section of the block where the beam strikes but the surrounding tungsten stays solid. It's a poor heat conductor so it doesn't form a wide liquid puddle. With copper or aluminum the heat spreads rapidly and the pool grows wide very quickly.