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Tangential Tool Holder
- Thread starter FarFar
- Start date
So after a while of watching and reading I still have one question. I guess someone here is able to answer me.
Why is the tangential tool holder better, than any other cutting tool on a lathe? Is it stiffer or able to cut more in one pass?
Why is the tangential tool holder better, than any other cutting tool on a lathe? Is it stiffer or able to cut more in one pass?
- Joined
- Jan 21, 2013
- Messages
- 860
Here's a link to that Australian company that's making them now. http://www.eccentricengineering.com.au/index.php?option=com_content&view=article&id=2&Itemid=17
It's easier to read that than to explain it I think.
Being lazy and not owning a mill ( heck I won't even have the lathe for two more weeks) I went and bought one of these. Hope it works as well as I hear it does!
It's easier to read that than to explain it I think.
Being lazy and not owning a mill ( heck I won't even have the lathe for two more weeks) I went and bought one of these. Hope it works as well as I hear it does!- Joined
- Jan 1, 2013
- Messages
- 185
That's true, but I'm finding there is another benefit: Ridgity, especially FarFar's design. I like direct mounting so much I'm switching tooling. Here is a so-so shot of my boring bar holder.
And a Barnyard Engineering cutoff tool holder. I'm going to make a holder to duplicate this lashup. It is very effective. The new holder will holder the parting tool directly.
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FarFar, Thanks for sharing your research on TTH. I think these are probably the most effiecent and economical lathe cutting tools for a HSM.
Regarding the square hole for holding the colbalt, I think you could cut it easily with a rotary broach on your lathe. This thread has an excellent description of the process and home-made tooling: http://www.hobby-machinist.com/showthread.php/14582-Rotary-Broach-Holder. It would be far cheaper than electrical discharge machining and would not stress the metal like the press process you are currently using.
Regarding the square hole for holding the colbalt, I think you could cut it easily with a rotary broach on your lathe. This thread has an excellent description of the process and home-made tooling: http://www.hobby-machinist.com/showthread.php/14582-Rotary-Broach-Holder. It would be far cheaper than electrical discharge machining and would not stress the metal like the press process you are currently using.
Very interesting process that rotary broaching, but I need a hole square 25 mm deep and 5 mm square.Is it possible?
Yes, it is used for making internal toothed gears like a ring gear.
Hello Bill and Mike H
My next pressed toolholder will be made of 16mncr5 because I have a suitable piece and like the material.
It is a casehardening steel,but is awfully strong and tough in the annealed state .
Process will be as illustrated.The two I have made already was pressed with 14 tons and needed repeated anglegrinds.
This new way will hopefully need only 5-8 tons and no regrinding.
The milling of clearance and general beautymaking is the same of course
Kind regards
Niels
My next pressed toolholder will be made of 16mncr5 because I have a suitable piece and like the material.
It is a casehardening steel,but is awfully strong and tough in the annealed state .
Process will be as illustrated.The two I have made already was pressed with 14 tons and needed repeated anglegrinds.
This new way will hopefully need only 5-8 tons and no regrinding.
The milling of clearance and general beautymaking is the same of course
Kind regards
Niels
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