Re: Re: Resolution and surface finish

>Message: 21
> Date: Fri, 29 Dec 2000 14:24:01 -0600
> From: Jon Elson <jmelson@...>
>Subject: Re: Re: Resolution and surface finish
>
>
>
>Fred Smith wrote:
>
>> Often in aluminum a conventional cutting
>> direction will result in a better finish as climb milling pulls the
>> chip back & it gets crimped between the tool & the work, making a
>> nasty finish.
>
>Are you sure about this? I always climb mill for best finish.
>My experience is that conventional milling is the direction that
>causes recutting of chips and bad surface finish. The technical
>books also confirm this with drawings showing why that is so.

Well if I wasn't sure do you think I would have posted it? Maybe you're not doing it right if you "always" do it the same way. What you say is usually, though not always, true in steel. It is even less often true in aluminum. Maybe the best way would be to try it and see if it improved the cut.


Best Regards, Fred Smith- IMService
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