Archived posting to the Leica Users Group, 2003/07/22
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hello Seth, "White metal" for the top plate of the Leica M6? I seriously doubt that. Referring to "Materials Handbook", 14th edition, by Brady, Clauser and Vaccari, "White metals. Although a great variety of combinations can be made with numerous metals to produce white or silvery alloys, the name usually refers to the lead-antimony-tin alloys employed for machine bearings, packings, and linings; to the low-melting point alloys used for toys, ornaments and fusible metal; and to the type metals." Now, there is a material called "white metal sheet." Again, I quote, "White metal sheet now much used for making stamped and formed parts fior custome jewelry and electronic parts is zinc with up to 1.5% copper and up to 0.5% titanium. The titanium with the copper prevents coarse-gain formation, raising the recrystallization temperature. The alloy weighs 2% less than copper and it plates and solders easily." It may well be that this is what Leica uses. As to whether titanium can be plated out onto this alloy is another question entirely. Just because you want to do this, doesn't mean that it is possible. Also, what is this word "titanized?" I have never seen this in all my years as an editor of "Material Engineering." Regards Kurt - -- Kurt H. Miska GERMAN BUSINESS TRANSLATIONS Ann Arbor, Michigan khmiska@umich.edu http://www-personal.umich.edu/~khmiska/ - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html