3191RE: [mlathemods] Re: Flat or raked part off tools?
- Jul 6, 2010
Maybe someone would be so kind as to provide this uninformed novice [me] with a link to a photo of a “T” type parting tool.
I bought all my parting toolbits years ago, and they are all the wedge type. However, one of 'em is now only an inch long, and I'll get one of the T type to replace it. Never had any trouble with the wedge type, once I learned how to sharpen & set 'em properly.
[David Lee Responds ->] I’ve not ever had any luck at all with any parting tool but, if I keep at it, I may eventually finger out what I’m doing wrong.
Until then, the less said, the better.
From: firstname.lastname@example.org [mailto:email@example.com]On Behalf Of James W. Early
Sent: Tuesday, July 06, 2010 9:30 AM
Subject: Re: [mlathemods] Re: Flat or raked part off tools?
Which is why the "T" style blades require only about 20% of the force that conventional wedge style bladeds do. This is also why they do not require a heavy rake like the wedge blades do and why they stay sharp up to 20 times longer. On my CNC at work wedge blades neded to besharpened every 3 hours in production while "T" blades were good for up to 36 hours on the same job. After using the "T" blades for over 20 years in production work I find it amazing people still waste their money and time on the silly wedge blades!
Long Beach, CA
--- On Mon, 7/5/10, David Beierl <dbeierl@...> wrote:
> From: David Beierl <dbeierl@...>
> Subject: Re: [mlathemods] Re: Flat or raked part off tools?
> To: firstname.lastname@example.org
> Date: Monday, July 5, 2010, 7:09 PM
> At 10:07 PM 7/5/2010 Monday, jim.klessig@...
> >Ok being one of them novices, what is the difference?
> The old-style blades have an elongated V section and an
> angled bottom
> to clamp into a half-vee groove at the bottom of the tool
> holder. The T-style ones have a T section with a flat
> bottom. Because the width of the blade sharply
> immediately below the cutting edge these blades offer much
> chip clearance.
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