Wow, that’s precision cutting.

How does the wire cut then? It’s obviously some kind of sacrificial process I’m guessing.

Is the stamp for some commercial use, like an inspection stamp on a certificate?  They looked to be making more than 1 of that particular design?

Mick.

On 20 January 2025 at 14:07 Morse Homology Said:

Longer video showing the process.

 

In one word… Exquisite

In a few more … a perfect distribution of work twixt man and machine.

MichaelG.

If you look at about 4:23 in you can see the two parts lifted out separately, but a bit later there is someone tweaking the outer edge to remove burrs (where cutting starts?) under a big  inspection microscope.

I worked in a toolmaking company where  these were used to machine dies and moulds where the holes had to be finished to size to allow ejector pins to slide but to be less than 0.0002 clearance to prevent flashing. The wire guides can be moved independantly so the top of a hole could be a star and the bottom ciuld be round or evan square. It would be my job to service these the worst job was keeping the flushing clean as de-ionised water isused as the flushing agent and all the cut metal and wire wear which contaminated it and changing the wire guides.

David