Author Topic: Parting tool trick (Read 4617 times)

DICKEYBIRD · « **on:** October 18, 2009, 05:03:10 PM »

I think I saw this on John Moran's (Gadgetbuilder) website. You guys may already know this but I thought I'd post it anyway in case anybody's having parting sorrow. A simple mod but very effective!

Just grind a chip breaker radius into the top of your HSS parting blade with a small stone in a Dremel tool and hone the cutting edge SHARP. The results are amazing. Tiny, tight little curls of swarf and the blade just plain walks through the stock.

Bernd · « **Reply #1 on:** October 18, 2009, 05:35:23 PM »

Not to toot my own horn here, but I get those little curls without the chip breaker.

I know. I've got to prove it now right?

Bernd

DICKEYBIRD · « **Reply #2 on:** October 18, 2009, 06:31:01 PM »

Naah, I'm just happy my parting is going well. You must be using one o'them high-dollar insert parting tools?

sbwhart · « **Reply #3 on:** October 19, 2009, 03:33:03 AM »

Lovely Curls you made their.

Used to work with a chap we called Lenny the curler, he could part a 1" bar off in one curl.

Have fun

Stew

DICKEYBIRD · « **Reply #4 on:** October 19, 2009, 08:08:26 AM »

Yup, if I had power cross-feed on my lathe, the chip would continue winding up until it got so big & heavy it fell off.;)

Bernd · « **Reply #5 on:** October 19, 2009, 10:16:24 AM »

Quote from: DICKEYBIRD on October 18, 2009, 06:31:01 PM

Naah, I'm just happy my parting is going well. You must be using one o'them high-dollar insert parting tools?

Nope. HSS tool in a QC tool post. The secrete is getting it square to the work and a bit of "Tap Magic". You know how many I broke before I could do that.

Bernd

NickG · « **Reply #6 on:** October 21, 2009, 11:06:05 AM »

Mine does too for Aluminium. It's a nice feeling when you're getting those curls and not much noise ... like a knife through butter! It can make you over confident though haha!

MadModder

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