MACHINE SHOP TIPS #98 Grinding A Lathe Threading Tool Tubalcain




What do you think about this video?

‫شجانـي آمـنت الكـلب يمـك‬‎: ok

John Pierce: Nice video.  I have appreciated you tool grinding series.  For the threading tool, you don't seem to bother with compensating for the thread helix angle adjustment on the opposite two faces.  Can you explain?  Does this mean that the tool you grind in this video is equally useable for both left and right hand threads?

jose gonzalez: hoy es mañana

jose gonzalez: lol

ExtantFrodo2: Very nice. I would have milled the bottom side of the jig because I can't change the angle of the tool rest on my grinder.

Eli Duttman: Sir: Forgive me if I err in digging through memories more than 50 years old.  I recall a machine shop teacher telling us that those angled tool holders spared us the chore of grinding a 20 degree back rake into turning and facing bits. 

I was NOT a good machinist and only too glad to get a mandatory class under my belt.

Eli D.

abukamoon: Very well done video explaining how to grind thread tooling.  I am not a machinist, and this explains the process very clearly.  One question, it seems that a tool used to cut 20 tpi should have a smaller radius at the tip than one used to cut 60 tpi,  If you were going to cut 20 or even 13 threads per inch, wouldn't you put a larger radius on the tip?  I don't think you would want a sharp point on the minor diameter.

mary gage: Is it possible to purchase your machine shop series on dvd? If so can you let me know the cost. Thank you and have a great day.

tommy thompson: I have watched a lot of your videos. I got a logan 10 inch lathe and have been turning a lot of steel into chips. I have a little round tool for making threads, and no matter wha I did, I could not make a good thread.  I gave up, and ground one. Night and day difference, the threads now are acceptable, and they were horrible before.  So thanks for what you do. You explain thing better than anyone, I really appreciate it.  Tom

Jon G.: It took me forever to get it right in class! Wish I had a jig. lol

Aftab I Mamdapur: thanks for the refrance

nisw1918: thanks gave you a thumbs up please return the favor

Chris Murray: Internal threading tool has a more severe rake angle or chip breaker


Alex Nguyen: Pp,l

Shawn Hawkins: 16 year olds can't do this freehand but how many 16 year olds own a Bridgeport? :-)

Shawn Hawkins: Is there any difference in geometry for an inside threading tool?

Robby Kanarr: Im 13th and I can do it

hidráulica moura: muito bom o seu trabalho.

Joseph DAndrea: He teaches high school shop part time.

Rating:
MACHINE SHOP TIPS #98 Grinding a Lathe Threading Tool tubalcain 5 out of 5

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