Troy:
Diamond is required if you want to avoid pulling the fibers; not to mention
that carbide tool life is very short.
This may not be an issue if one is working at Safety Factors of six or
better, but if one is at 2.0--implying a wall thickness of 0.040" for a
1000 psia system at 6" O.D.--then diamond is a requirement. Using carbide
will cause failure at the drill holes.
Bill
On Tuesday, April 19, 2016, Troy Prideaux <GEORDI@xxxxxxxxxxxxxxxx> wrote:
You need diamond drills for carbon fibre composite? That surprises me.
I’ve cut hundreds of FGC and CFC parts in the past (including very densely
packed CF/FG phenolic composites) with normal tools (mostly carbide though)
without issue although that’s usually with slower speeds and coolant
though. I’ve personally found that FG is more abrasive than CF on tooling.
Troy
*From:* arocket-bounce@xxxxxxxxxxxxx
<javascript:_e(%7B%7D,'cvml','arocket-bounce@xxxxxxxxxxxxx');> [mailto:
arocket-bounce@xxxxxxxxxxxxx
<javascript:_e(%7B%7D,'cvml','arocket-bounce@xxxxxxxxxxxxx');>] *On
Behalf Of *William Claybaugh
*Sent:* Wednesday, 20 April 2016 5:05 AM
*To:* arocket@xxxxxxxxxxxxx
<javascript:_e(%7B%7D,'cvml','arocket@xxxxxxxxxxxxx');>
*Subject:* [AR] Diamond tooling
I'm looking for diamond drills, counter sinks, and spot facers for carbon
fiber composite; anyone have any recommendations for a high quality
supplier?
Bill
