My first lathe - don't laugh

[benmychree]

Just came to mind that Stellite can be applied to steel by oxy acetylene welding or TIG and used as a wear surface; I have a quantity of Stellite cast rod for the purpose.

 

[Bob Korves]

The Stellite tools that I have and have seen were blanks brazed onto high carbon steel shanks, like carbide, but the usable blank was much longer than a typical carbide tool, and could be sharpened back very much further.
It seems to me that it was invented and made by the Haynes Company, I think the same company as made the Haynes automobile.

We seem to be hijacking Jared's thread here, so I started a new thread here:
https://hobby-machinist.com/threads/stellite-and-other-special-unusual-tool-bits.61674/

 

[Ken from ontario]

For aluminum or brass, which would be about 400 surface feet per minute (SFPM)

I'm a bit confused ,is the SFPM for Aluminum 250 or 400? thank s for helping a confused rookie.

 

[Bob Korves]

I'm a bit confused ,is the SFPM for Aluminum 250 or 400? thank s for helping a confused rookie.

I use 400 SFPM on aluminum if I am confident with what I am doing. Otherwise I start slower and see how it goes...

 

[Ken from ontario]

Thanks Bob, For milling aluminum I calculate RPM using 250 x 4 divided by the diameter of the end mill, if I use 400 SFPM with a .500" end mill, the RPM will be beyond what my little mini mill can handle, that's why I asked thinking all this time I was way too slow . thanks for the clarification.

 

[Bob Korves]

Thanks Bob, For milling aluminum I calculate RPM using 250 x 4 divided by the diameter of the end mill, if I use 400 SFPM with a .500" end mill, the RPM will be beyond what my little mini mill can handle, that's why I asked thinking all this time I was way too slow . thanks for the clarification.

I use that same basic formula, Ken.

 

[jaredbeck]

First chips! And, my first time operating a lathe



Check out my questionable lathe dog. Apparently I don't know how to center a hole in round stock on my drill press. Well, it worked, and I'm taking 0.020" cuts. I'm getting a real lathe dog and some new HSS blanks in the mail tomorrow. Then I need to find a chuck .. with the oddball 1/2"-24 spindle, that might be tricky.

 

[jaredbeck]

Oh, and I forgot to mention, the tool bit has an engraving on it, "Rex AA" which I'm guessing stands for Ann Arbor, where the lathe was made, right? Or am I letting my imagination get away with me?

 

[Tozguy]

Congrats on your first turning, now you are off and running. BTW that dog is fine. The only criteria for dogs is that they work. Looks don't count so you can even use hose clamps and such.

And you have a sense of humour

 

[Bob Korves]

First chips! And, my first time operating a lathe

View attachment 240472

Check out my questionable lathe dog. Apparently I don't know how to center a hole in round stock on my drill press. Well, it worked, and I'm taking 0.020" cuts. I'm getting a real lathe dog and some new HSS blanks in the mail tomorrow. Then I need to find a chuck .. with the oddball 1/2"-24 spindle, that might be tricky.

Probably a reach at your stage of machining, but this is an option:
http://www.deansphotographica.com/machining/projects/109/spindle/adapter.html
Here are some adapters (and ideas):
https://www.ebay.com/sch/i.html?_od..._trksid=m570.l1313&_nkw=1/2-24+chuck&_sacat=0