Machining Taper for Drill Adapter

Machining 304 Stainless Steel to Make Drill Adapter Using Motorized Attachment For Taper Turning

Category:

Education

Tags:

• Machining
• Lathe
• Taper
• Turning
• Indexable
• Drill
• Adapter
• Boring
• Drilling

[Metalunique]

How fast were you turning?

[ytmachx]

@Metalunique The taper was turned at 930 rpm

[quisp2112]

I Love the Moody Blues track playing in the background

[EruditeCanadian]

@ytmachx

Yeah, most of the work in Alberta is based around natural resources like mining and oil/gas. So, a lot of the work is really big. At that same shop, we used to repair track idlers for the Terex RH400 facing shovels they use in the oil sands mines. They were about 6 feet dia. and weighed 7 tons! That's too big for me though! Check out Fort McMurray oil sands.

I wish I had taken some videos of that place.. I could have posted them like you!

Later.

[ytmachx]

@EruditeCanadian Wow! that's a monster piece of work. I've only worked on stuff that you can hold in your hands.

[EruditeCanadian]

@ytmachx

Yeah, I've worked with 17-4 a bit, and a fair amount of 410. I don't mind the 410 because it likes to break a chip nicely. They use it a lot in the oil and gas industry here in Alberta.

I once machined an impeller shaft out of 410. It was about 6 feet long X 6" diameter. It was a pretty cool job, a couple of bearing fits, couple of threads for Timken nuts, couple keyways... It was one of those jobs that makes you feel good that you're a machinist, you know?

Later! :)

[ytmachx]

@EruditeCanadian If you use carbide tooling , keep the surface speed high, use lubricant, and keep the work from getting hot, then stainless machines beautifully. 17ph4 is a bit more difficult but I can achieve the same results as well.

[EruditeCanadian]

@ytmachx

Right on. I was just wondering, partly because I don't like machining stainless... Too stringy and gummy... Unless it's 410, then you can break a chip nicely.

Have fun!

[ytmachx]

@EruditeCanadian Thanks!

The lathe has no taper attachment. 304 stainless is strong, it machines exceptionally well, and it maintains a beautiful appearance,(no rust). 4140 doesn't machine anything like stainless.

[EruditeCanadian]

Cool video... Just wondering, why did you make it out of 304 stainless? Wouldn't 4140 or similar be a better choice? I don't have any of my material handbooks handy, but I would think that 4140 would offer better wear and vibration resistance.

Does that lathe not have a taper attachment?

Like I said, just wondering... Not trying to give you a hard time.

Are you a machinist or is this just a hobby for you?