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Aluminum body face mills

Houndogforever

Hot Rolled
Joined
Oct 20, 2015
Location
Boring
I see these 2 inch anodized aluminum face mill cutters that take the standard apkt1604 insert.

What is the purpose of these being made from aluminum? Seems you would need to throw it away after indexing inserts 3-4 times.

Does anybody here use one? Just curious really.

thanks
 

Comatose

Titanium
Joined
Feb 25, 2005
Location
Akron, OH
The ripper mills are aluminum. One good crash or a thrown part and they're done.

On the other hand, you can spin them up to 22k rpm (if I remember right, I only have 16k and run them at that all the time)

Probably a similar trade-off for other stuff.
 

Rstewart

Stainless
Joined
Jun 14, 2006
Location
Huntsville Alabama
The ripper mills are aluminum. One good crash or a thrown part and they're done.

On the other hand, you can spin them up to 22k rpm (if I remember right, I only have 16k and run them at that all the time)

Probably a similar trade-off for other stuff.



No they're not Aluminum.

At least the < 3." ones
 

Hazzert

Stainless
Joined
Dec 21, 2014
Even Sandvik makes the century in an aluminum body tools so it's not entirely a gimmick. If you never machine anything harder than aluminum and plastics why waste the mass on a steel body?
 

DMF_TomB

Diamond
Joined
Dec 13, 2008
Location
Rochester, NY, USA
I see these 2 inch anodized aluminum face mill cutters that take the standard apkt1604 insert.

What is the purpose of these being made from aluminum? Seems you would need to throw it away after indexing inserts 3-4 times.

Does anybody here use one? Just curious really.

thanks

usually insert holder is steel although parts of a cutter could be made of aluminum. big boring bars for mills often use aluminum. they can be very heavy when all steel. literally over 50 lbs the bigger ones. only negative is size changes slightly more with temperature changes. with milling cutter normally not a problem a .0002" size change
 

yardbird

Titanium
Joined
Jul 3, 2013
Location
Indiana
I could only imagine it's because they are cheaper. Just don't make sense to me. Seems they would definitely be disposable.

Brent
 

dstryr

Diamond
Joined
Jan 22, 2010
Location
Nampa Idaho
Finishing work in aluminum so you can crank them up. I have 4 of the sandvik aluminum body century cutters and they only take finish passes.
10k rpm with PCD inserts taking .005
 

Vancbiker

Diamond
Joined
Jan 5, 2014
Location
Vancouver, WA. USA
They work fine for high speed aluminum cutting, roughing or finishing. Makino MAG series machines (32k rpm, 100+HP spindle) routinely use them. Not the APKT insert style though. IIRC, We had them from Mits, Sandvik and Ingersoll.
 
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LostFab

Aluminum
Joined
Jul 12, 2016
Location
Cascadia, Washington
Ran a 1" endmill style Rippers on my Haas for a few years without a problem, then had one pretty good crash and it never ran quite as true, but it definitely paid for itself.
I just got the 2" facemill style Ripper, excited to see what it will do on the Brother.

I assume most of them specify in the literature that they are only for cutting aluminum, the Ripper mills do at least.
 

Corym

Cast Iron
Joined
Oct 16, 2007
Location
San Francisco Bay Area
Ran a 1" endmill style Rippers on my Haas for a few years without a problem, then had one pretty good crash and it never ran quite as true, but it definitely paid for itself.
I just got the 2" facemill style Ripper, excited to see what it will do on the Brother.

I assume most of them specify in the literature that they are only for cutting aluminum, the Ripper mills do at least.

To clarify, as posted above, neither of these tools are aluminum body. Both are steel.
 

Cole2534

Diamond
Joined
Sep 10, 2010
Location
Oklahoma City, OK
usually insert holder is steel although parts of a cutter could be made of aluminum. big boring bars for mills often use aluminum. they can be very heavy when all steel. literally over 50 lbs the bigger ones. only negative is size changes slightly more with temperature changes. with milling cutter normally not a problem a .0002" size change

Even with it being 1/3 the stiffness?
 

Jashley73

Titanium
Joined
Jan 24, 2013
Location
Louisville, KY
I would imagine that the aluminum would have less mass, which means faster accel/decel from Zero to Max RPM & back... That would be a big deal in high volume, near-net-shape automotive production parts.
 

DMF_TomB

Diamond
Joined
Dec 13, 2008
Location
Rochester, NY, USA
Even with it being 1/3 the stiffness?
.
picture of aluminum and steel boring bar
.
it works ok, with temperature changes it can vary .0002"
.
insert is held by steel part. since boring bars can be heavy like literally heavy to pick up i do not mind at all some aluminum used
 

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