Does anyone know of a self-venting material that we could use to make some detailed mold inserts? A customer is having some venting issues that they have asked us to try to resolve with this material. I know I've seen it somewhere before but don't know if it can be used with a glass-filled nylon or even if we could machine it without closing the pores. Thanks, Dave.

My DME rep found it for me. It's called Porcerax II and is offered by International Mold Steel. Offered in 2 pore sizes, 7 & 20 micron. It is best machined by EDM to keep the pores open but can be milled and ground if stoned afterwards. Not cheap at $110.00 for a pc. 1/2x2x2 but we'll try it out anyway. DME also offers pre-made sintered vents but they won't fit where we want them.

There is a pre-hardened steel that might help. It comes in 2 grades NAK 55 and NAK 80. We've purchased this through our local supplier, TOOL STEEL SERVICE, in Los Angeles. They can give you more on the mat'l.

Brian Medina

As a 2nd follow-up; be aware that porous mat'l can clog with mold release.

Brian Medina

Hello

We are in a process of buying DMG laser cutting machine, I was in Germany last week and I must say it was impressive, the performance of this machine, but being a new technology it has its limitations and shortcomings, does anybody have any feed back or heard of this? Your info is appreciated

Regards
Ed