does an internal lathe threading/grooving/profiling tool exist?

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metalmagpie

Titanium

Joined

May 22, 2006

Location

Seattle

• Oct 2, 2017

• #1

I have this crazy idea that somewhere out there there is a single tool which can take inserts to do internal threading or internal grooving or internal profiling. Obviously, you'd need to stock different kinds of inserts.

Ideally, you could also buy an external threading tool which took the same insert as the internal threading tool used.

But I can't find one.

I have tried looking at manufacturer's web sites (e.g. Iscar) and have difficulty understanding what the information is that they are presenting. They appear to be written for an audience that doesn't include me. :-(

Help!

metalmagpie

 

brian.pallas

Hot Rolled

Joined

Dec 19, 2011

Location

Whitehall, MI

• Oct 2, 2017

• #2

What about a gang block that holds each of the tools?

 

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Limy Sami

Diamond

Joined

Jan 7, 2007

Location

Norfolk, UK

• Oct 2, 2017

• #3

There is and this is just one of them Simturn DX Internal System

Click on the inserts and take your pick.

PS I know there are other makes etc but I knew where to find this one on my puter ..look up Horn tooling.

PPS Heres another that might be easier to find in the US Fine Tool Machining | Lathe Tool Supplier | Cutwel Ltd

 

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Gobo

Titanium

Joined

Jun 4, 2013

Location

Oregon, USA

• Oct 2, 2017

• #4

Full form threading tools exist, however, the insert for an external thread is of necessity, a very different grind than that for in internal thread.

 

Zahnrad Kopf

Diamond

Joined

Apr 5, 2010

Location

Tropic of Milwaukee

• Oct 2, 2017

• #5

Yes. PH Horn and others make them. I cannot for the life of me recall who it was that is marketing what is basically the exact same tool as the PH Horn ones. I use them all the time. The only caveat being that they aren't really, truly "profiling" in the sense like I _think_ you mean. Basically, they are threading and grooving tools and inserts, but many of the grooving profiles can indeed be used for profiling, albeit not as heavy as an engagement as a typical profiler. I like using an oversize groove insert to WEDM custom shapes, too. Makes life easier at times. I'll try and dig out the model numbers soon if someone hasn't beaten me to it by then.

 

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Tedger

Aluminum

Joined

Nov 29, 2012

Location

Phoenix,AZ.

• Oct 2, 2017

• #6

I use an internal top notch bar that threads,grooves and can also profile to some degree. Lots of inserts available.

 

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Danny VanVoorn

Titanium

Joined

Nov 3, 2002

Location

St.Louis, Missouri, USA

• Oct 2, 2017

• #7

metalmagpie said:

I have this crazy idea that somewhere out there there is a single tool which can take inserts to do internal threading or internal grooving or internal profiling. Obviously, you'd need to stock different kinds of inserts.

Ideally, you could also buy an external threading tool which took the same insert as the internal threading tool used.

But I can't find one.

I have tried looking at manufacturer's web sites (e.g. Iscar) and have difficulty understanding what the information is that they are presenting. They appear to be written for an audience that doesn't include me. :-(

Help!

metalmagpie

Click to expand...

I have several different varieties but most are top notch Kennametal, turning tools and the boring bars to match.
The problem is one tool for small bores a bigger tool for bigger bores, etc., etc... until there is a tool box drawer full of them and still another one you need now but didn't buy. Pick your poison and step right in, the waters fine if you can learn to swim (and afford it).
Dan

 

litlerob1

Diamond

Joined

Nov 4, 2013

Location

Utah, USA

• Oct 2, 2017

• #8

Theoretically you could use a Threading bar to do everything but a shoulder. You could Thread OD by starting from he back of the Thread and feeding toward the front of the part, you could do simple material removal (very slowly), you could finish turn/bore, do internal profiles.

Robert

 

jims

Hot Rolled

Joined

Sep 12, 2004

Location

Sonora , Calif

• Oct 2, 2017

• #9

you can see what an internal threading tool looks like by going to Amazon and enter id threading tool. Also shows one type of insert.
jims

 

iMillJoe

Hot Rolled

Joined

Jun 12, 2013

Location

St. Louis

• Oct 2, 2017

• #10

PH Horn makes a whole line of products similar to what you are describing.

 

billzweig

Stainless

Joined

Jun 4, 2015

Location

BC

• Oct 3, 2017

• #11

Those tools and inserts are fairly common. I have a number of different sized by Stellram. The threading tools have a verity of inserts for internal and external and left hand and right hand threading.

 

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EndlessWaltz

Cast Iron

Joined

Jun 18, 2016

Location

Midwest

• Oct 4, 2017

• #12

Like others said a few different brands. The slang for one style is "top notch" . I think kennametal.

What would you guys use though to get a thread right up close to the head of a bolt per se. I feel like an idiot for asking however all I have used is the top notch style which is offset from the point. The closest you can get is .100 away pretty much..

 

litlerob1

Diamond

Joined

Nov 4, 2013

Location

Utah, USA

• Oct 4, 2017

• #13

EndlessWaltz said:

What would you guys use though to get a thread right up close to the head of a bolt per se. I feel like an idiot for asking however all I have used is the top notch style which is offset from the point. The closest you can get is .100 away pretty much..

Click to expand...

You can get very, very close to 1/2 a pitch from a shoulder. .100" has nothing to do with it. If the pitch is 4 TPI the closest you can get is from the root of the thread to the shoulder of the part, so very close to .125", OTOH if you are threading 40 TPI, you should be getting very close to .015" from the shoulder.

I have a love/hate thing with TopNotch® Inserts. I think they are the old faithful, but if you look into it there are way better options. The world of Machinery tooling is HUGE.