RE: [CAD_CAM_EDM_DRO] Hard composite wood like machining - benolix?

Another material that is FANTASTIC to machine (not so sure it's very healthy
without correct dust control) is Paxolin
A British invention - I think in the 1930's - It's made from layers of Irish
linen and resin - so strong that I am
told that because of the severe metal shortage in WW2, crucial parts of the
UK's famous Spitfire aircraft were
made from it - I use it all the time and was lucky to get a 4' square x 1.5"
slab.

Rgds

Dave Fisher


-----Original Message-----
From: CAD_CAM_EDM_DRO@yahoogroups.com
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Abby Katt
Sent: 03 November 2006 17:39
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Hard composite wood like machining - benolix?

Darren, Hi

Sounds like you're looking for Bakelite. One of the first plastics ever
made, and quite groovy:
From WikiPedia:

*Bakelite* is a brand named <http://en.wikipedia.org/wiki/Brand_name>
material based on the thermosetting
<http://en.wikipedia.org/wiki/Thermosetting_plastic> phenol formaldehyde
resin <http://en.wikipedia.org/wiki/Phenol_formaldehyde_resin>
polyoxybenzylmethylenglycolanhydride
<http://en.wikipedia.org/wiki/Polyoxybenzylmethylenglycolanhydride>,
developed in 1907 <http://en.wikipedia.org/wiki/1907>-1909
<http://en.wikipedia.org/wiki/1909> by Dr. Leo Baekeland
<http://en.wikipedia.org/wiki/Leo_Baekeland>. Formed by the reaction under
heat and pressure of phenol <http://en.wikipedia.org/wiki/Phenol>
and formaldehyde <http://en.wikipedia.org/wiki/Formaldehyde>, generally with
a wood flour <http://en.wikipedia.org/wiki/Wood_flour> filler, it was the
first plastic <http://en.wikipedia.org/wiki/Plastic> made from synthetic
components. It was used for its nonconductive
<http://en.wikipedia.org/wiki/Nonconductor> and heat-resistant properties in
radio and telephone casings and electrical insulators
<http://en.wikipedia.org/wiki/Insulators>, and was also used in diverse
products such as kitchenware <http://en.wikipedia.org/wiki/Kitchenware>,
jewelry <http://en.wikipedia.org/wiki/Jewelry>, pipe stems, and toys
<http://en.wikipedia.org/wiki/Toy>. In 1993 Bakelite was designated a ACS
National Historical Chemical Landmark
<http://en.wikipedia.org/wiki/ACS_National_Historical_Chemical_Landmarks>
in recognition of its significance as the world's first completely synthetic
plastic.[1]
<http://acswebcontent.acs.org/landmarks/newproducts_t.html#bakelite>

Happy trails!
Abby
(http://www.silverkatt.co.uk)

> Hey Guys... this is what I'm looking for but not exactly sure of the
> spelling but I believe it sounds like "benolix" (tried Google but
> wasn't correct spelling).
>
> What it is - a dark brown / near black material - (composite plastic?)
> that is very hard and machines very nice?? It can and is commonly used
> for dies where something is pressed around it / inside of it? It can
> be machined to a very nice finish but is easier than metal more like
> very consistent hardwood - plastic wood composition???
>
> Thanks for any help or a substitute material for same. I have some
> aluminum (.035" - .050")I'd like to machine inside / outside dies for
> some parts I have coming up and do not know where to purchase or
> accurate name for same.
>
> Any help appreciated!
> Darren Lucke
>
>

[Non-text portions of this message have been removed]



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