If the plastic handle they use to attach a steel knife blade to is so strong, why not just use that for the knife blade? Why bother with steel at all? Is it just marketing?
:smack::smack: I had been wondering about that for years, and suddenly, I can’t even figure out what I was thinking!
Ignorance has been fought. Thanks!
Why don’t they make the whole plane out of the stuff the ‘black box’ is made of?
The roads aren’t wide enough - Cecil covered it in a column some time ago.
Ignorance fought. Now I have to cancel all that black box material I ordered.
Tungsten carbide drills? What the bloody hell are tungsten carbide drills?
Drills where the cutting edge is made of a tungsten carbide. Very hard stuff, and keeps a great edge. Goes through plain old steel like butter. Most of the bit is tool steel… Just the edge is tungsten carbide.
“Drills where the cutting edge is made of a tungsten carbide” ? You’ve bloody fancy talk since you left London.
Aside from the other replies let me point out that the bonding agent in the electroplating process I described is pure nickel, not even a very strong material. They also occasionally used cobalt although I never knew why.
I don’t know where the diamond dust came from, but back in the 60s, white dust cost about $5 a carat, $25 a gram, $750 an ounce. But it didn’t take much.
There were other drills made without diamonds and I think they were tungsten carbide.
I have many micro drill and miller bits made entirely out of tungsten carbide, they go through anything but you just drop them on the floor and they snap in pieces. That’s why your normal drill bits are not made entirely out of that material. That and it’s bloody expensive too.
I’m very glad that my tungsten carbide wedding ring isn’t diamond-tipped. Can you imagine the damage it would do when I move it up and then out of my nose?
Click here if you think I’m posting on acid.