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618F1
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Post subject: Verlicchi F1 swingarm grade of aluminum Posted: Tue Nov 24, 2015 7:33 pm |
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Joined: Thu Oct 14, 2010 11:23 am Posts: 1802
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Hello gang. I have found someone local to re-anodize a Verlicchi aluminum swingarm. They asked me what hardness/grade it is --- 60???? Does anyone know that with certainly. Not critical, just helpful.
Thanks, MikeV
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pantah_good
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Post subject: Re: Verlicchi F1 swingarm grade of aluminum Posted: Tue Nov 24, 2015 9:14 pm |
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Joined: Fri Oct 15, 2010 12:20 pm Posts: 1275 Location: Vermont, USA
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I know the early Verlicchi un-braced one I tried to have weld repaired by a rather good welder, after some loosened up sprocket screws cut arcs out of the inside vertical surface, didn't weld good. Does that (probably not) help? Bill
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ducadini
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Post subject: Re: Verlicchi F1 swingarm grade of aluminum Posted: Wed Nov 25, 2015 6:46 am |
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Joined: Wed Sep 11, 2013 7:13 am Posts: 268
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I searched some period Verlicchi documents for that info but found nothing usefull. Welding a non treated swingarm is not easy, it has to be treated to remove the anodizing. As You stated, the grade or alloy isn't very critical when it comes to anodizing. But even a local heat-treatment (like a welded repair of even heating to bend) could show a different colour or shine when anodized without a complete heattreatment. The higher content of Si could make it darker. Regardless the heattreatment by Verlicchi, by now those swingarms are "naturally aged" and should have a even finish after anodizing.
Let's hope Verlicchi used (roughly) the same material for all the parts.
ciao ducadini
_________________ Nego i ricordi peggiori, richiamo i migliori pensieri
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