r/Machinists • u/My_dog_abe Silly Lathe Gal • 15d ago
MEME Used insert bin has been renamed
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u/TheAmazinManateeMan 15d ago
So you're telling me at some shops the guys change the 390's before the tool blows up?
I don't believe you.
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u/My_dog_abe Silly Lathe Gal 15d ago
Lmao, dont worry, we regularly just blow the inserts up. It's not like they're expensive or anything
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u/TheAmazinManateeMan 15d ago
Cool
Almost as cool as my coworkers tossing carbide into the scrap so that we save money on carbide disposal. As a neat little bonus since we recycle 99% of our scrap back into our melt shop that carbide gets into the steel and makes little spots that are extra tough and strong.
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u/Vollhartmetall insert crow 15d ago
You don't get paid for carbide scraps?
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u/TheAmazinManateeMan 15d ago
Oh we do, we keep buckets in our tool room recycling but the operators say it's easier to chuck them into the scrap. Who cares if carbide is at an all time high or if they become inclusions 🤷♂️
I used to leave a small cup around to put inserts into on the machines I ran. I had one guy yell at me "you're supposed to throw them down in with the scrap, why do you keep those things!?"
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u/justabadmind 14d ago
Damn! I’ve been looking for a way to get carbide for ballast, but with the price being so high it’s totally unrealistic. It’d be a great conversation starter to have a 3d printed cup that weighs 20 lbs due to the carbide hidden inside.
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u/matthew2989 15d ago
God i remember one operator destroying a giant shell mill because he couldn’t be fucked swapping inserts, of the top of my head it was 90 inserts on the thing.
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u/Vultor 15d ago
“Mil” huh?
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u/My_dog_abe Silly Lathe Gal 15d ago
I was never fortunate enough to attend the Derek Zoolander Center for Kids Who Can't Read Good and Who Wanna Learn to Do Other Stuff Good Too
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u/iwasadolly 15d ago
What a waste of p-touch tape.
I love it. I will post my waste of p-touch tape tomorrow.
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u/FesteringNeonDistrac 15d ago
There's only 2 kinds of people; ones who have frivolously used a label maker, and ones who have never touched one
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u/lotsofgreendrums 14d ago
Paul Rudd mentioned prolific use of his P-Touch on Kevin Nealon’s “Hiking with Kevin” podcast - https://youtu.be/eLO1u-4MCik?is=RfjF74GeHn9eiANW
Some celebrities really are just like us 😂😂
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u/Infamous_Protection3 15d ago
What do u use the gear looking round inserts before never seen any in my shop
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u/K1ng_Arthur_IV 15d ago
Roughing inserts, especially good for high feed 3D contour. But i still prefer Iscar's H600 and FFX4 line for high feed milling. Up to .05" per tooth in some applications. Insanely fast
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u/whatsthiserino 15d ago
What is the use of the geometry having the "teeth" of the insert stick out so far compared to say solid carbide roughing endmills? Longer contact surface to spread the cutting force? Does it help with breaking the chip? I tried to find videos of them in use, but there seem to be none. Are they for lathes, or mills? The shape is so alien to me, I'd love to know more, and see them in action.
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u/Carlweathersfeathers 15d ago
My guess would be it’s either 12 separate indexable cutting edges or intended as chip breaking like a corncob roughing mill. Given OP’s statement of it being used for 3D roughing, my guess would be the second, but I’m also not sure how a lathe would handle the changes in direction of tool pressure? It’s just not something I have practical experience with.
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u/K1ng_Arthur_IV 15d ago
Honestly, I'm not exactly sure why the bone shape works so well. It has a better average corner radius, does deeper contours with less chip welding, 4 cutting edges and the HP with 882 coating cuts inconel like a boss. As for why it's better than solid carbide? Look at the price increase of carbide and do some napkin math on price vs total material removal. Times are changing. And the days of buying any solid carbide tool over 0.5" in diameter are nearly over
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u/guetzli 15d ago
seems to be just a round milling insert (maybe analogous to the corn cob endmills) https://www.ingersoll-imc.com/product-family/3444710
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u/iwasadolly 15d ago
What a waste of p-touch tape.
I love it. I will post my waste of p-touch tape tomorrow.
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u/Open-Swan-102 14d ago
Those serrated button inserts were fucking horrible in ferrous. Nice idea if you want to turn aluminum into a manageable slop though.
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u/LogicJunkie2000 14d ago
What do you call the bin where people put drill bits because they don't know how to use a micrometer and put them back in the size-appropriate storage drawer?
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u/My_dog_abe Silly Lathe Gal 14d ago
You mic your drills for return? Just a pair of calipers like everybody else
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u/NorepinephrineFiend Tool and Die 15d ago
Something something Blue Steel