Deburring Delrin plastic parts by tumbling

A. Have you tried it yourself or not, Paul? Please start with your own situation and findings.

What we find at finishing.com is that people are reading your letter but will not spend their time responding if you don't tell us what you tried and what happened, because the odds are high that their effort will be rewarded with a dismissive "we already tried that" :-)

Thanks!

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

A. Ted tells it like it is! However, quick short answer is yes and maybe end it there. There are some tricks and a lot of the processing depends exactly on what kind of a finish you are looking for. Meaning we need more info.

A. We have seen several machined Delrin parts from customers who were looking to remove machine burrs. We employ a cryogenic tumbling process whereby the parts are brought to an ultra cold temperature and blasted with a polycarbonate media. The burrs become frozen and break off cleanly when impacted by the media. Temperature, time, tumble rate, media size and speed are critical factors that must be optimized to get the best results. Having said that, once the process is "dialed in", it very repeatable, reliable and cost effective. We have many customers who are saving time and money by using our cryogenic deburring services. If volumes are large enough, you can bring the process in-house as well.