Ingemar,

Check out Product Finishing [magazine] On-Line to see if you can find some
additional insight http://www.pfonline.com/

http://www.pfonline.com/clinics/  - list of clinics they offer

Try e-mailing the guy in the cleaning clinic -
http://www.pfonline.com/clean/clinics.html 
An article I found when searching for "medical titanium" in their past
articles http://www.pfonline.com/articles/web110101.html  - this article
indicates the user is using in 1,1,1 trichloroethylene.  Wonder how old the
article actually is?  

From the cleaning clinic - "cleaning titanium"
http://www.pfonline.com/articles/clinics/1206cl_clean3.html 
http://www.pfonline.com/articles/clinics/0808cl_clean4.html 

I'll ask my pacemaker buds to see if they have a quick answer that can be
shared.

Steve

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Inge
Sent: Friday, March 27, 2009 3:02 PM
To: [log in to unmask]
Subject: [TN] Titanium

Hi all,

this is little odd question in this forum, but I try:
after machining a complex structure in pure Titanium, how do you clean the 
part to a medical cleanliness level?
Threading/cutting oil was a mineral oil with added Sulphur and Zinc /MSDS 
7047.  I have an idea about alcaline cleaning with
ultrasonic followed by etching in a 10% water/HNO3 solution, ended with 
ultrasonic water washing in distilled water.
Anyone with experience?

/Inge 

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