Great question! Aceteal Copolymer (Co-POM) has better long term resistance to corrosion and has low moisture absorption. Its also much more chemically resistant in the long-term than Acetal Homopolymer. If we are talking about short-term mechanical properties, than you would have no problem with H-POM. Hope this answer clears it up for you. Thanks!
Which type would be best for machining on a lathe? I will be using 1" dia. round stock and need the surfaces to be very smooth. I recently had a bad experience with a piece of copolymer which would NOT machine smoothly with any of my tooling. Surfaces came out looking like I was trying to make threads! Thank you.
Very interesting question! It is possible that the material properties of Delrin would reduce the surface roughness to provide the smoothness you’re after. Since the yield of Delrin is higher, it may be easier to attain a smooth finish, as generally the harder the material the easier this is to do. That being said, other important factors would likely be work holding, and turning speeds and feeds.
Really impressive! but I didn't get it well when it comes to Medical application, why does Co-POM suit better than H-POM? Thanks!
Great question! Aceteal Copolymer (Co-POM) has better long term resistance to corrosion and has low moisture absorption. Its also much more chemically resistant in the long-term than Acetal Homopolymer. If we are talking about short-term mechanical properties, than you would have no problem with H-POM. Hope this answer clears it up for you.
Thanks!
Which type would be best for machining on a lathe? I will be using 1" dia. round stock and need the surfaces to be very smooth. I recently had a bad experience with a piece of copolymer which would NOT machine smoothly with any of my tooling. Surfaces came out looking like I was trying to make threads! Thank you.
Very interesting question! It is possible that the material properties of Delrin would reduce the surface roughness to provide the smoothness you’re after. Since the yield of Delrin is higher, it may be easier to attain a smooth finish, as generally the harder the material the easier this is to do. That being said, other important factors would likely be work holding, and turning speeds and feeds.
@@ProtocaseInc Received a piece of 1-1/4"dia. homopolymer today and it machined very nicely. I'll stay with that stuff now!