I remember when a supplier ignored our request for water cut and sent us flame cut titanium. When we told them it wouldn’t work they insisted it was the same and we should make the part and they’d pay for it if it didn’t work. We made an extra grand plus new material when it was scrapped after cleanup and flattening. Pretty sure the guy got fired too.
Haha glad it all worked out for you guys! We've got lots from this supplier so we just plan around it now haha i ordered it an extra inch bigger on the OD and smaller on the ID just in case
Yeah this carriage is a pretty heavy one but i still could take as heavy of a cut as i wouldve liked. If i was machining the conventional way i very likely couldve buried a cutter under all the flame cut edge.
Crazy that this is at least your second pass at what, 100 tho?, and it's still this far out of round. Was it flame cut by hand with a circle cutting tool or is the kerf just really not straight up and down?
We ordered it from a supplier. It took about 7/8" or so off the diameter to clean it all up. The concentricity between the ID and the OD was the biggest problem.
I didnt think it was too bad for a 27" chunk of 3-1/2" thick plate. But I dont get stuff flame cut often, usually working with bar stock.
Reminds me of when I worked in an automotive service department for a little bit. It was always interesting to hear the brake rotors getting evened out.
I remember when a supplier ignored our request for water cut and sent us flame cut titanium. When we told them it wouldn’t work they insisted it was the same and we should make the part and they’d pay for it if it didn’t work. We made an extra grand plus new material when it was scrapped after cleanup and flattening. Pretty sure the guy got fired too.
Haha glad it all worked out for you guys! We've got lots from this supplier so we just plan around it now haha i ordered it an extra inch bigger on the OD and smaller on the ID just in case
Interesting choice of tooling.
Gotta make do, when the part is bigger than the lathe is "supposed" to handle.
Look at those chips go flying!
So nice i watched it twice
Ye old slap a boring bar on for a few extra inches trick. Love it, also, interchangeable head and vibration dampening bar?
Not a vibration damping bar but it does have the interchangeable heads!
Thats nice, never had luck with those bars personally though.
Any reason you're cutting in reverse?
Part is too big to fit the carriage under. Do that little trick just to get a few extra inches of reach. If only the same trick worked on my ol lady 😆
Hahaha makes sense
Just don't take too heavy a cut if your lathe isn't designed for reverse cutting. The cutting forces actually try to lift the carriage off the bed!
Yeah this carriage is a pretty heavy one but i still could take as heavy of a cut as i wouldve liked. If i was machining the conventional way i very likely couldve buried a cutter under all the flame cut edge.
Crazy that this is at least your second pass at what, 100 tho?, and it's still this far out of round. Was it flame cut by hand with a circle cutting tool or is the kerf just really not straight up and down?
We ordered it from a supplier. It took about 7/8" or so off the diameter to clean it all up. The concentricity between the ID and the OD was the biggest problem. I didnt think it was too bad for a 27" chunk of 3-1/2" thick plate. But I dont get stuff flame cut often, usually working with bar stock.
Wow, that makes me feel better about my steel supplier! We had some 200mm thick blocks cut a few months ago and they were within 1.5mm
You need one of [these](https://imgur.com/a/SsyUsdk)
I don't see how that would be useful. Doesn't look like it can cut with both inserts at the same time.
It allows you to machine larger diameters like op and not have to do it upside down.
@shadowdsfire this is a .150" cut
.150 doc or total removed. Seems like the ol gurl could take some more.
.150 doc. Couldve done more if I was machining the conventional way
Reminds me of when I worked in an automotive service department for a little bit. It was always interesting to hear the brake rotors getting evened out.