Indexable Chamfer Cutter – too much choice

Indexable Chamfer Cutter – too much choice

This topic has 10 replies, 4 voices, and was last updated 24 November 2020 at 21:33 by Michael Gilligan.

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24 November 2020 at 20:04 #509665
Lee Jones 6
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@leejones6
Just searching one of my usual places for picking up indexable tooling.

Looking for an indexable chamfer cutter this time around.

Stumbled over Link removed see CofC seller and was blown away by the choice.

Despite the obvious diameter/angle differences, why would you choose one of these styles over the other?

I'm particularly interested in the rectangle (APMT) vs triangle (TCMT) variants.

Edited By JasonB on 24/11/2020 20:12:29
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24 November 2020 at 20:04 #20042
Lee Jones 6
Participant
@leejones6
24 November 2020 at 20:15 #509667
JasonB
Moderator
@jasonb
Single triangle will usually go down to a smaller size hole or radius

Square can often be used above and below the work without changing tool

2 or 3 insert allow faster feed rates for same given chip load over single insert but minimum radius goes up.
24 November 2020 at 20:18 #509668
JasonB
Moderator
@jasonb
Hass explain it quite well in this video
24 November 2020 at 20:18 #509669
Lee Jones 6
Participant
@leejones6
That's what's confusing me the most, both S and T have the same min-radius.
24 November 2020 at 20:36 #509670
old mart
Participant
@oldmart
I've got one that is adjustable for angle.
24 November 2020 at 20:38 #509671
Lee Jones 6
Participant
@leejones6
Oooo, posh. How does that work?
24 November 2020 at 20:43 #509674
JasonB
Moderator
@jasonb
24 November 2020 at 20:59 #509678
Lee Jones 6
Participant
@leejones6
A (moving) picture paints a thousand works. Thanks a bunch.
24 November 2020 at 21:03 #509680
old mart
Participant
@oldmart
I can't post a pic of the adjustable chamfer tool as it is locked up at the museum at the moment. It is a WNT and the single sided positive insert sits in a holder that pivots around the central hole in the insert. SAU also make the same type. Some use triangular inserts, and some square ones.
24 November 2020 at 21:33 #509682
Michael Gilligan
Participant
@michaelgilligan61133
An insert for an insert …That’s neat.

MichaelG.
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