Alternative coating to Titanium Nitride?
Alternative coating to Titanium Nitride?
(OP)
Hi All,
I have a rather complex part that has a long cylindrical protrusion in the shape of a drill bit. This drill bit section will be used to drill through thick sections of steel when the part is in service. Currently, the part is made of 1022 and case hardened to 50-53 with an effective case depth of 0.009". We are exploring the possibility of applying a ceramic coating to the drill bit portion in order to increase the drilling capabilities of the tip. It was suggested that we use a titanium nitride coating, however due to the unusual shape of the part and the high volume needed, this does not appear to be a feasible approach (titanium nitride coating requires individual fixturing in order to apply the electrical arc, and this can be costly). Is there a ceramic coating that we can use that can be applied in batch? Ideally we are looking for a coating that will give us a hardness anywhere between 70-90 HRC. At this point, it doenst matter if the coating is applied to the entire part if the process is done in batch (such as dipping), since this will decrease cost and not require fixturing. Any ideas would be greatly appreciated at this point.
Thanks,
Steel
I have a rather complex part that has a long cylindrical protrusion in the shape of a drill bit. This drill bit section will be used to drill through thick sections of steel when the part is in service. Currently, the part is made of 1022 and case hardened to 50-53 with an effective case depth of 0.009". We are exploring the possibility of applying a ceramic coating to the drill bit portion in order to increase the drilling capabilities of the tip. It was suggested that we use a titanium nitride coating, however due to the unusual shape of the part and the high volume needed, this does not appear to be a feasible approach (titanium nitride coating requires individual fixturing in order to apply the electrical arc, and this can be costly). Is there a ceramic coating that we can use that can be applied in batch? Ideally we are looking for a coating that will give us a hardness anywhere between 70-90 HRC. At this point, it doenst matter if the coating is applied to the entire part if the process is done in batch (such as dipping), since this will decrease cost and not require fixturing. Any ideas would be greatly appreciated at this point.
Thanks,
Steel





RE: Alternative coating to Titanium Nitride?
I can't remember (and may not have known enough originally) if it addresses all your points but might be worth some time investigating.
There are different DLC processes, and flavors of coating so you may need to look more than one place.
We've talked to Sulzer Metco a few times, but it hasn't gone anywhere yet. http://www.sulzer.com/en/Products-and-Services/Coa...
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Alternative coating to Titanium Nitride?
What prompted the original investigation into coatings? How exactly have the parts not been performing to expectations? Are the tools simply wearing out too quickly, or are they breaking?
Maui
www.EngineeringMetallurgy.com
RE: Alternative coating to Titanium Nitride?
RE: Alternative coating to Titanium Nitride?
Maui
www.EngineeringMetallurgy.com
RE: Alternative coating to Titanium Nitride?
It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
RE: Alternative coating to Titanium Nitride?