Names for chip types?

[mmcmdl]

Back when I was an apprentice I had the oppurtunity to use carbide burr bits on lots of stainless pipe . Lunch time came and I hopped up onto the table to eat . Big mistake . I picked those stainless burrs out of my butt and pants for a week .

 

[Shotgun]

Back when I was an apprentice I had the oppurtunity to use carbide burr bits on lots of stainless pipe . Lunch time came and I hopped up onto the table to eat . Big mistake . I picked those stainless burrs out of my butt and pants for a week .

So what would you call those type chips?

 

[Shotgun]

I once saw a chip from a facing cut on a vertical boring mill that was coming off as a kinked spiral so that it came off non rotating, the operator, George Apple, reeled it up, and before we left on swing shift, we stretched it out the whole length of the shop, 350 feet for the day shift to marvel at; the foreman observed that we must have wasted a lot of company time doing that ----

You'd call that a "yarn chip"? You spend the day spinning yarn?

 

[Janderso]

6s and 9s if possible.

You said it Bob,
Plenty of videos on how to get "manageable" chips. It's voodoo magic between the cutter, RPM, feed rate and depth of cut.
Good luck.

 

[Shotgun]

I ran out to the shop and pulled some sample from my chip bucket. Are there "official" names, or even just better ones? Names that would convey whether the chips are "good" or "bad"?

Bananas came from RPMT1204 inserts on a 4" face mill, turning 500 rpm.
The twist is from a 3/8" drill bit.
The rope is from DCMT0604 on the lathe.
The devil hair is from side milling using a 12mm end mill (it's on a magnet, mixed with other stuff, 'cause I ain't touching that with my hand).

 

[Shotgun]

You said it Bob,
Plenty of videos on how to get "manageable" chips. It's voodoo magic between the cutter, RPM, feed rate and depth of cut.
Good luck.

But, doesn't the 6-n-9s apply mostly to turning?

I think the bananas I got from face milling are an extension of 6-n-9s, but I don't see how I'd ever get that type of chip from a side milling operation or from a drilling operation.

And I have an argument that the 6-n-9 is not the most manageable chip. The rope is actually the most manageable I've ever gotten. I can grab it with my hand and pull on it without worrying about getting cut, and I only had to sit my chip bucket next to the lathe and let it feed directly in. Almost no cleanup. I got it while rough turning a 3" A36 round down to an MT3 taper, using a Mitsubishi DCMT insert.

 

[T Bredehoft]

That's a foreman for you, no sense of reality.

 

[FOMOGO]

I had some angle iron I needed to reduce the width of one leg .25. Used a 3/4" inch TIN coated cheap end mill that I had used for cleaning up over a 100' of 1/2" plate torch cut edges. The thing just refuses to die, though I've done my best to kill it. Cleaned it up today with a stone and used it again to cut down some 3/4x3/16 strap, and it's still chomping away. Pretty amazing chips coming off of this thing. Think I will dub it the "Mongosauras chip". Cheers, Mike

 

[jwmay]

I call them Little SOBs when they get stuck in my skin, and Hanger onners when they're stuck in my clothes. Otherwise I just call them a mess.

 

[Shotgun]

I had some angle iron I needed to reduce the width of one leg .25. Used a 3/4" inch TIN coated cheap end mill that I had used for cleaning up over a 100' of 1/2" plate torch cut edges. The thing just refuses to die, though I've done my best to kill it. Cleaned it up today with a stone and used it again to cut down some 3/4x3/16 strap, and it's still chomping away. Pretty amazing chips coming off of this thing. Think I will dub it the "Mongosauras chip". Cheers, Mike

I'd call that a centipede, and I'd love to see a video of that rolling off the work piece.