Looking for an inserted OD grooving tool for .020” snap ring groove

Finegrain · Jan 9, 2020

Hello,

I have a part to run in 1/8” 303, making a .020” wide x .017” deep groove near one end, then pushing the stock out and parting off @ .625”. My Kennametal NG2 only goes down to .031”. Looking for something that goes down to .020”. Quantity is 100’s so would like something using inserts.

I’d be running these in my Mori Seiki SL-2B. Obviously this is more of a Swiss job, but this came to me from a shop with a Swiss-ish machine so here I am

.

Thanks, and regards.

Mike

guest · Jan 9, 2020

Nikcole Mini or Thinbit.

I use the Nikcole, grooving inserts go down to something like .019". Thinbit goes even smaller.

http://niko-nikcole.com/wp-content/uploads/sites/6398/2018/03/Minisystems_web_v1d.pdf

Grooving Products

MattiJ · Jan 9, 2020

Sandvik Corocut XS, P. Horn 274 series.. what else

tonymor · Jan 9, 2020

I've never had to go that small but we use this style from Iscar.

https://www.mscdirect.com/product/details/89909824

Finegrain · Jan 9, 2020

tonymor said:
I've never had to go that small but we use this style from Iscar.

https://www.mscdirect.com/product/details/89909824

Thanks, that would be perfect! Now to find a supplier that doesn’t make me buy 10x $35 inserts :crazy:

.

Regards.

Mike

MattiJ · Jan 9, 2020

Finegrain said:
Thanks, that would be perfect! Now to find a supplier that doesn’t make me buy 10x $35 inserts .

Regards.

Mike

How many seconds to grind your own from larger insert.. yeah you needed more than one but less than full box :cool:

Guest · Jan 9, 2020

Finegrain said:
Thanks, that would be perfect! Now to find a supplier that doesn’t make me buy 10x $35 inserts .

Regards.

Mike

Thinbit sells on Amazon, you can buy as few as you like.

Graham Gott · Jan 9, 2020

KBC Tools and Travers sell the Nikcole inserts individually. KBC has a better selection of sizes.

tonymor · Jan 9, 2020

Finegrain said:
Thanks, that would be perfect! Now to find a supplier that doesn’t make me buy 10x $35 inserts .

Regards.

Mike

I never said buy it from those feckers

Also, our 'special' price is more like $25

TeachMePlease · Jan 9, 2020

THINBIT 3 Pack LGT020D2R 0.020" Width 0.060" Depth, Uncoated Carbide, Sharp Corner, Grooving Insert for Steel, Cast Iron and Stainless Steel with Interrupted Cuts: Amazon.com: Kaiser-THINBIT

You'd need to find the appropriate holder... They're also available TiAlN coated, but at that diameter, I doubt you can touch the SFM that makes a coating truly necessary.

guest · Jan 9, 2020

I like that the Nikcole system has 2 cutting edges per insert. Also they groove deeper than the others, so you can use them to part off smaller diameters.

I never get chatter from them, for whatever reason- that's something I occasionally have to fight with top-notch grooving.

Zahnrad Kopf · Jan 9, 2020

We've got some of the ones already mentioned, but also have some TNMC ones. We've got them down to 0.015" on hand, and I've ordered 0.010" in the past.

Delw · Jan 9, 2020

heres a pdf file if it uploads I use the inserts all the time on my omniturn Miyano, citizen even on my 10" chuck machine
I have the regular square bars and the round 5/8 muliti bars ( the round multibar is great for my 10" chuck machine cause I can do to ops with one station.

gooving down to .010. thread cutting turning etc etc inserts may seem expensive but the run thousands of parts on my Citizen, the inserts are stong as hell and cut much free'r than a toplock or topnotch

sorry pdf wont load go to link

[url=https://omni-turn.com/]OmniTurn CNC Lathes, Gang Tooling, Replacement Parts, Left hand turning tool goto tooling cat.

CarbideBob · Jan 10, 2020

MattiJ said:
How many seconds to grind your own from larger insert.. yeah you needed more than one but less than full box

About 45-120 seconds in the grinder per edge or tip depending on stock but there is the one to two hours in setup and other processing overhead which makes a 1 or 2 piece run expensive.
Bob

Mtndew · Jan 10, 2020

In a pinch we've wire edm'd our own. FWIW

Finegrain · Jan 10, 2020

Thanks for the ideas guys. I didn't get a PO, so it's moot :rolleyes5:

.

Regards.

Mike

jims · Jan 10, 2020

Look up Kennametal Ng2mo50rk
.02 wide

MattiJ · Jan 11, 2020

CarbideBob said:
About 45-120 seconds in the grinder per edge or tip depending on stock but there is the one to two hours in setup and other processing overhead which makes a 1 or 2 piece run expensive.
Bob

I was thinking more of diamond wheel in bench grinder where it is about 10 seconds setup and the time is spent mostly repeatedly measuring and sneaking to correct size.
I have collection of mgmn200 type inserts ground to anything from 0.4mm and up.

Yan_b · Jan 12, 2020

If you have er insert thread tool holder you can get grooving inserts from carmex ect...

CarbideBob · Jan 12, 2020

MattiJ said:
I was thinking more of diamond wheel in bench grinder where it is about 10 seconds setup and the time is spent mostly repeatedly measuring and sneaking to correct size.
I have collection of mgmn200 type inserts ground to anything from 0.4mm and up.

How much time to use such and take a .125 wide tool down to .020 and nail a few tenths on your bench grinder?
For me the overhead also includes cleaning and packing the parts, processing the invoice and PO and sending it out so my overhead is more than the making.
This is the joy of doing it yourself, all of these cost do not exist.
Bob

Looking for an inserted OD grooving tool for .020” snap ring groove

Diamond

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Titanium

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Diamond

Titanium

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Aluminum

Aluminum

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Diamond

Stainless

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Hot Rolled

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Aluminum

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