Making Copper Bullet Jackets: Machining Punching & Drawing Dies! Part 5
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- Опубликовано: 28 авг 2024
- This Video:
Turning the outside diameter (OD) and then drilling and boring the inside diameter (ID) hole! We take periodic measurements to see if the parts is still running true. Also, another look at the CAD model for a new idea about stripping off the newly-made copper cups
This Series:
Having been a long time shooter and reloader, I am undertaking my next project for my new Emco V13 lathe: Making Copper Bullet Jackets. The process steps are to blank a copper coin out of a strip of copper, cup it, then draw it in to progressively longer and thinner-walled shapes. The goal in this project is to end up with a 9MM jacket which will be about 0.6" long and 0.352" in diameter. That jacket can then be used in a swaging system (e.g. Corbin) and combined with a lead slug to make an actual bullet!
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I am so glad I voted for more detail. It is really paying off for my viewing pleasure!!! Nice work and I am amazed how big your equipment keeps growing from your old apartment days.
I just started learning about machining a few months ago. I am a cave man ...gorilla when it comes to doing stuff. I got a mini lathe to make swaging dies for bullets. They work but the more I learn the more I see how bad they are. I just learned so much on this video ...just wow. I was not boring my holes (most are only .224" which is pretty small for boring. I am currently working on a .460" hole . I have it drilled to .446" so I'm going to try cutting the rest with a boring bar. (never tried to use one any deeper than 1/2" before.) But armed with your instructions maybe it will go well. Thanks.
Such a nice quiet running lathe, Especially for a gear head machine..
Wish my big old gear head lathe was as quiet as that.
Mind you you wouldn't find a more accurate big lathe than mine, So I guess the trade for accuracy over dead quiet ain't so bad..
Good to see you using the new toy Mate. Told you ya'd love it and never look back.
Matt
These type of videos are the most enjoyable (at least for me) to watch.
CNC is great... no its awesome, but manual machines really showcase ones machinist skills.
great video....keep rocking
You're cranking these right out! Very fun series.
I’m going to watch part 6
This is awesome! Really nice detail and overall work.
Keep the videos coming John, they rock!
very good job
Nice work keep them coming, two thumbs up
Really enjoying all your videos. Try using the back side of your sandpaper strips with lapping compound or the finer gits for the polishing. You will be less likely to have a rag catch in the lathe.
Keep 'em coming, good stuff!
Great stuff!! Love watching your videos!
Let do this! Great work and that's from a New Yorker Floral Park long island.
No, Im like were you was. Im an home machinist. I took a 9 month trade class years ago and fall in love. i been in this hobby for about 2 years now and im working on right now to turn my X2 to an CNC.
You r really talented man
Great video! It's making me anxious to get a new lathe of my own
I've done a lot with short chipping-brass. Evacuation was a daily annoyance. If you think you'll do a lot with this steel, look in to getting some parabolic drills.
Ah the FB link 🙂 / love'n the info , what about shellcase's ,no one is doing cases that I've seen
wouldn't the step on the inside diameter of the yellow part naturally act as a striper if you pushed the yellow part far enough that the step in the i.d. went pased the copper. it would put more uniform pressure on the copper edge than one or two fingers
Looks realy good ;D AWESOME!
That's an awful lot of tailstock rowing. Once the chips clog release the tailstock clamp and pull the whole tailstock back to clear chips. Then push the whole tailstock in till it makes contact again, tighten tailstock, and resume feeding chips clog and repeat. Moving the whole tailstock is not best practice for drilling a final size hole, but it'll cut the rough drilling time in half.
The rough finish is from chips rubbing between boring bar and ID of part. Angling the bar a bit will help, as will a constant blow of air deep into the hole.
Thanks for making the videos, it takes me back to when I was on lathes and mills as a younger man.
Love your videos, John, especially this series. Keep 'em coming!
I've learned a ton, im not even a machinist..lol
I just subbed your channel I seen part 4
John ave you turned much 12L14? If so, how does it compare to 1144? I've never turned 1144 but LOVE 12L14.
Funny how that works ;)
I don't think you need running 3000 RPM to drilling, that why they are getting hot
hey why couldnt you just make a hole in the "punch that pushes the copper cup up" adn on the downward cycle have a pin that would push the cup off of the punch that it was formed on ? instead of cutting a window as you were thinking in the vid?
Always ALWAYS drill first.
why do you not use coolant?
:(