Deep Inside Grooving

Ox

Diamond

Joined

Aug 27, 2002

Location

Northwest Ohio

• Dec 6, 2017

• #1

I need to make an .094 wide groove 3/16" deep and 2" down in a 1.500" bore.

My #3 Top Notch insert JUUUUST won't quite make it in stock form.
The bottom of the insert is taking out about .004" on Diameter.
I knew that it was gunna be close, but I thought it was gunna work, but ... nope!

I can (and will) put these on Jenny to make fit, but I really don't like grinding on inserts all that much...

I looked into a #4 bar/insert, but the smallest of those has a 2.500 min bore, so that dog don't hunt...

Anyone know of someone with more depth reach in stock form in an insert type tool off the cuff?


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Think Snow Eh!
Ox

 

G

guest

Guest

• Dec 6, 2017

• #2

I've never used one of these Ox, but it looks like it would get in there?

ISCAR Cutting Tools - Metal Working Tools - GEHIR/L : 281897 - GEHIL 12-15-3-T6

 

L

lakey0

Aluminum

Joined

Jul 20, 2015

• Dec 6, 2017

• #3

This? #3 insert, .25 DOC

NGD394 K KC5 Grade, .941" Cutting 3822954 - MSC

 

Ox

Diamond

Joined

Aug 27, 2002

Location

Northwest Ohio

• Dec 6, 2017

• #4

lakey0 said:

This? #3 insert, .25 DOC

NGD394 K KC51 Grade, .941" Cutting 3822954 - MSC

Click to expand...

Oh really?

I didn't know that they made a "deep" version.


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Think Snow Eh!
Ox

 

L

lakey0

Aluminum

Joined

Jul 20, 2015

• Dec 7, 2017

• #5

Be aware too that they are single sided inserts.

 

Ox

Diamond

Joined

Aug 27, 2002

Location

Northwest Ohio

• Dec 7, 2017

• #6

lakey0 said:

Be aware too that they are single sided inserts.

Click to expand...

Ahhhh!

I was wondering if they just ground it back further and you need to relieve the bar (hard to believe - but my bar has already been on Jenny anyhow) or if they projected it out further, and then that put into question how they seat it back in where it needs to be.

So that answers those questions!

Thanks!


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Think Snow Eh!
Ox

 

G

guest

Guest

• Dec 7, 2017

• #7

Makes me wonder if they offer the same thing in a threading insert.

Ox, weren't you dealing with that on that other part? Your internal threading bar couldn't quite reach?

 

Ox

Diamond

Joined

Aug 27, 2002

Location

Northwest Ohio

• Dec 7, 2017

• #8

guest said:

Makes me wonder if they offer the same thing in a threading insert.

Ox, weren't you dealing with that on that other part? Your internal threading bar couldn't quite reach?

Click to expand...

Just needed the insert turned around t'other way.


http://www.practicalmachinist.com/vb/cnc-machining/back-boring-threading-tools-342571/index3.html#post3084501


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Think Snow Eh!
Ox

 

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Gobo

Titanium

Joined

Jun 4, 2013

Location

Oregon, USA

• Dec 7, 2017

• #9

guest said:

I've never used one of these Ox, but it looks like it would get in there?

ISCAR Cutting Tools - Metal Working Tools - GEHIR/L : 281897 - GEHIL 12-15-3-T6

Click to expand...

We use these, but I don't like the way the bar is ground on the backside. You lose a lot of rigidity.