tube material for hole popper EDM

M. Roberts · Sep 24, 2021

Hello all,

I am fairly new to the EDM hole popper world, so bear with me. I started using brass tubes, burning mainly starter holes for my wire EDM. Someone suggested copper tubes; they seemed to work as well, if not better. Now I read somewhere about copper/tungsten tubes....I haven't explored them as of yet; does anyone have any words of wisdom...pertaining to this subject

?? The work material is silicon carbide ceramics, mainly.

Thanks,
Mark

plastikdreams · Sep 24, 2021

Brass is the standard but experiment with different materials and see what works best for you. Maybe get in touch with a specialty company and pick their brains, maybe get some samples to try.

SeymourDumore · Sep 24, 2021

Copper is for carbide drilling, but from my experience it does nothing for other materials.
Never tried tungsten, but when I've asked my supplier I was told that those are for sinker edm burning and not hole poppers.

Luke.kerbey · Sep 25, 2021

Our Sodick hole popper uses nothing but copper, we cut with rods in range of 0.6 - 2.5mm.

In good conditions I’m cutting a 10-20mm per minute in steel of the top of my head, could be more in steel, and then even faster in Aluminium and brass.

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tube material for hole popper EDM

M. Roberts

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