Parting off tool holder

[doubleboost]

Hi
A couple of years ago i sold my Colchester bantam lathe ,to finance a very nice Boxford aud lathe.
The bantam was good but had a limited top speed (800 rpm)
After selling the lathe i was left with a lot of 20 mill tooling and a glanze parting tool holder.
This was modified to fit directly on to the boxfort quick change tool post

This link should take you to the colchester parting off some alloy bar
http://www.youtube.com/watch?v=unF_DcY13xw
This was the lathe advertised on you tube
http://www.youtube.com/watch?v=z7fATHNuzeQ
It was sold to a bloke from Ireland
The Boxford is down on capacity but is better for smaller stuff
John

[DaveH]

John,

What make and type is you parting off tool? and the width of the cutting tip.

Nice idea to make it fit directly on to the QCTP

Great video by the way


DaveH

[doubleboost]

(03-10-2012, 07:27 PM)DaveH Wrote: John,

What make and type is you parting off tool? and the width of the cutting tip.

Nice idea to make it fit directly on to the QCTP

Great video by the way


DaveH

Hi
Dave
The parting tool in the video is just a igh speed steel tool clamped and wedged in to a tool holder
The material being cut was aluminium
It was a spindle lock for my mill
My glanze holder would not cut that deep
I was amazed at how well it worked considering the overhang
It was much easier than a hack saw

[DaveH]

Thanks John,
Do you use the Glanze one much?

DaveH

[doubleboost]

I use it all the time now
I made a rear tool post for the boxford but to be honest i never use it
The glanze tool works great
One thing i was told by a old hand was when the parting tool starts complaning was to increase the feed (make it work) if you start to back off things get worse
John

[TOM REED]

(03-13-2012, 07:00 PM)doubleboost Wrote: I use it all the time now
I made a rear tool post for the boxford but to be honest i never use it
The glanze tool works great
One thing i was told by a old hand was when the parting tool starts complaning was to increase the feed (make it work) if you start to back off things get worse
John

Your pics of the toolholders modified to directly mount on the QC tool post caused me to spend some more money. I have a 100s of larger carbides and was contemplating making tool holders to fit them for use in my QC tool post but after seeing your post I bought several 1` and 1.5 inch tools off e-bay for a song and will do the same as you and be able to use them in tool holders better suited than those I could make. thanks tom

[Mayhem]

How does this affect the rigidity of the tool?

[B34VD]

(03-13-2012, 07:00 PM)doubleboost Wrote: One thing i was told by a old hand was when the parting tool starts complaning was to increase the feed (make it work) if you start to back off things get worse
John

He's correct, show it no mercy. As long as all requirements are met, sharp tool, rigidity & on center. Keep feeding and it won't chatter.

[doubleboost]

(03-15-2012, 05:46 AM)Mayhem Wrote: How does this affect the rigidity of the tool?

Hi
The tool is more rigid than a small tool in a holder (you can not get it any nearer to the tool post )
The best bit is you can pick up large tooling & tips much cheaper than small stuff
John

[doubleboost]

A few more pictures of the modified tools
A block of steel has been bolted to 2 of them so the tool post gets a good hold
The pics explain it all

The third one is welded in to a holder .This was done before i was shown how to soften them for machining it works fine.
I will drill and tap the other end of the holder to take a small tool.



John