SIM
Titanium
- Joined
- Feb 19, 2004
- Location
- Staten Island NewYork USA
Usually within .001 we can interpolate bores not too deep.
.001 to .0005 a boring head is the go to.
.0005 and under the 10thSet boring head is what we use.
My issue is with boring heads the tools are a bit finicky. I found cermented carbide work best as they can be sharpened sharp enough not to push off, but honed to leave a nice finish and last. The problem is trying to have others grind, hone and set size without going thru a pile of otherwise good parts.
Add some depth to hole and it just gets to be too much hit and miss or way too much time...and I mean way too much time.
Is there a better way to hold tolerances tighter then .0005 then using boring heads. Or a better tool the cemented carbide. Ream is nice, for ream size holes.
Thought about honing machines...but have no experience. Keep coming up with cylinder honing.
Hole sizes 1"-several inches...although larger where head fits in hole is not so bad...it's when using bar to get in deep, like 1.732 x 4" deep +\-.0002
I have used burnishing tools with good results, but at several hundred a pop with a couple tho range...not great for short jobs.
Thanks for any input.
.001 to .0005 a boring head is the go to.
.0005 and under the 10thSet boring head is what we use.
My issue is with boring heads the tools are a bit finicky. I found cermented carbide work best as they can be sharpened sharp enough not to push off, but honed to leave a nice finish and last. The problem is trying to have others grind, hone and set size without going thru a pile of otherwise good parts.
Add some depth to hole and it just gets to be too much hit and miss or way too much time...and I mean way too much time.
Is there a better way to hold tolerances tighter then .0005 then using boring heads. Or a better tool the cemented carbide. Ream is nice, for ream size holes.
Thought about honing machines...but have no experience. Keep coming up with cylinder honing.
Hole sizes 1"-several inches...although larger where head fits in hole is not so bad...it's when using bar to get in deep, like 1.732 x 4" deep +\-.0002
I have used burnishing tools with good results, but at several hundred a pop with a couple tho range...not great for short jobs.
Thanks for any input.