Re: [CAD_CAM_EDM_DRO] Al Extrusion Vibration Damping

> Hi Andrey,
>
> Firrst of all, as you will se, I do not write english very well, but...
>
>
> About vibration,
> many people from the group said, "The trouble may bee from different
> sources"
> I agree
> But, if you want to increase the weight of the alu extrusion, you could
> use
> lead or stell pellets or even steel dust mixted with polyester resin
> (Fiberglass resin)
>
> Result: Weight without distorsion...
>
>
> Luc
>
>
> Le Mardi, 14 juin 2005, à 19:01 America/Montreal, Andrey Lipavsky a
> écrit :
>
>> How about injecting polyurethane foam into the voids? From my
>> experience,
>> it's a pretty good noise dampener. If you're going for sheer weight,
>> good
>> old cement might do the trick.
>>
>> Andrey
>>
>> -----Original Message-----
>> From: CAD_CAM_EDM_DRO@yahoogroups.com
>> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Jim Colley
>> Sent: Tuesday, June 14, 2005 5:53 PM
>> To: CAD_CAM_EDM_DRO@yahoogroups.com
>> Subject: [CAD_CAM_EDM_DRO] Al Extrusion Vibration Damping
>>
>> Just curious if anyone has any thoughts on how to increase the
>> vibration
>> damping
>> characteristics of aluminum framing products.
>>
>> I had thought about filling the voids in the extrusion with sand and
>> capping
>> the ends.
>>
>> Another idea was to fill the void with small lead pellets such as lead
>> shot.
>> A friend had the
>> idea of heating the extrusion just enough to melt the lead together,
>> but I
>> don't know if the
>> melting point of lead would cause a loss of heat treatment to the
>> framing.
>>
>> Any ideas or thoughts? I really like the flexibility of this product
>> in
>> machine design, but I fear
>> when I finish building my mill I will have horrible chatter.
>>
>>
>>
>>
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> Addresses:
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> timg@...
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> [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach
> it if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be
> a sister site to the CCED group, as many of the same members are
> there, for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING
> THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
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