polished aluminum

[studysession]

I have seen some posts where people cut aluminum on their machines and it's clean and polished. What bit do you cut with to give it that polished look and no scratched from the cutter?

Thanks

[Sinistersam]

Originally Posted by studysession I have seen some posts

Point us to the links that you've seen, for reference, please.

[studysession]

Here is a post in another forum showing an example of what I am talking about. Thye cut these things it's perfect and polished.

[cheetahcnc]

Number of flutes, feed speed, chip load, and plenty of flood coolant gives a really nice finish on aluminum.

Jim

[Algirdas]

high RPM, special very sharp edges, proper coolant

[mactec54]

studysession

If it is the part on the guitar, that has been cut out of sheet ,that all ready looks like that on the faces, there is no machining on the face's only the outside edges

[Sinistersam]

Originally Posted by studysession Here is a post in another forum showing an example of what I am talking about.

Where?
Copy and past the address for us to see, please. Without having a visual representation of what your expecting, your going to get the same answers here, as the other forum you asked this same question on.

[studysession]

Sorry - I thought I put this link in there -

Vectric Forum • View topic - VCarved Aluminum plaque for retiree

[mactec54]

studysession

The guitar I guess was on your site, The plaque, was done on a machining centre, with V cutters & a endMill,The edges are not that great a finish, & the tappered surface has been hand finished, so you can't really look at that as straight off the machine, see if you can find something else to use as a guide as to what you want your machined finish to look like

[janbbeck]

The madvac guy has some information here:
First CNC cuts - MadVac CNC

[studysession]

Thanks

[Sinistersam]

As Mactec stated, that was done on a Fadal machining center. This is an expensive, industrial piece of machinery, and far outperforms anything in the hobby world. That finish however, can easily be achieved. The top part, where the names are, looks to be sanded to a satin finish after being machined. The chamfered portions, or bevels, are cut along the flutes of a V-bit. The pictures in the link that janbbeck posted, are not straight off the machine. They have been hand polished.