Re: [CAD_CAM_EDM_DRO] Router Cutting Aluminum

The manufacturer claims you can cut aluminum with a RotoZip, which spins at
30,000 rpm. "Aluminum siding".

Why does this not melt the AL onto the RotoZip bit?

Richard Spelling, http://www.spellingbusiness.com/boats
From the muddy waters of Oklahoma

----- Original Message -----
From: "Jon Elson" <jmelson@...>
To: <CAD_CAM_EDM_DRO@egroups.com>
Sent: Wednesday, November 15, 2000 2:15 PM
Subject: Re: [CAD_CAM_EDM_DRO] Router Cutting Aluminum


>
>
> Joe Vicars wrote:
>
> > What are the disadvantages of using a wood router for cutting
> > aluminum? I am building a spindle for a 3 axis mill. I was thinking
> > about a 2HP Porter Cable VS router motor or an electric die grinder.
> > 8000-12000 RPM
> > A VS wood router or die grinder offers a lot of power in a small
> > package and are very easy to mount.
> > I have machined aluminum some with a router mounted on a lathe, but
> > it was a pretty flimsy setup.
> > Anyone have experience with this?
> > The only problem I can think of is the Aluminum dust floating around
> > and getting breathed in.
>
> And, that won't be good for the motor. But, what about the spindle
> bearings? I suspect the side forces will be MUCH greater cuttting
> aluminum, and may destroy the bearings very quickly. 8000 RPM
> minimum would require you to use only very small cutting tools, which
> might wear out very quickly. If you do this, you will need to have a very
> high feed rate, something like several hundred inches/minute.
> If you can't deliver the feed rate, you will melt aluminum, which will
> destroy the tool bit immediately.
>
> Jon
>
>
> Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the
discussion of shop built systems, for CAD, CAM, EDM, and DRO.
>
> Addresses:
> Post message: CAD_CAM_EDM_DRO@egroups.com
> Subscribe: CAD_CAM_EDM_DRO-subscribe@egroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@egroups.com
> List owner: CAD_CAM_EDM_DRO-owner@egroups.com, wanliker@...
> Moderator: jmelson@... [Moderator]
> URL to this page: http://www.egroups.com/group/CAD_CAM_EDM_DRO
> FAQ: http://www.ktmarketing.com/faq.html
> bill,
> List Manager
>